Various minor spelling corrections

Redo of #2939 rebased against RCBugFix

Marlin/Conditionals.h

   // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
 
   #if ENABLED(SAV_3DLCD)
-    #define SR_LCD_2W_NL    // Non latching 2 wire shiftregister
+    #define SR_LCD_2W_NL    // Non latching 2 wire shift register
     #define ULTIPANEL
     #define NEWPANEL
   #endif

Marlin/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 10.00
   #define  DEFAULT_bedKi .023
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/Makefile

 #
 # Detailed instructions for using the makefile:
 #
-#  1. Modify the line containg "ARDUINO_INSTALL_DIR" to point to the directory that
+#  1. Modify the line containing "ARDUINO_INSTALL_DIR" to point to the directory that
 #     contains the Arduino installation (for example, under Mac OS X, this
 #     might be /Applications/Arduino.app/Contents/Resources/Java).
 #
 #  2. Modify the line containing "UPLOAD_PORT" to refer to the filename
 #     representing the USB or serial connection to your Arduino board
 #     (e.g. UPLOAD_PORT = /dev/tty.USB0).  If the exact name of this file
-#     changes, you can use * as a wildcard (e.g. UPLOAD_PORT = /dev/tty.usb*).
+#     changes, you can use * as a wild card (e.g. UPLOAD_PORT = /dev/tty.usb*).
 #
 #  3. Set the line containing "MCU" to match your board's processor.
 #     Older one's are atmega8 based, newer ones like Arduino Mini, Bluetooth
 # Set to 16Mhz if not yet set.
 F_CPU ?= 16000000
 
-# Arduino containd the main source code for the Arduino
+# Arduino contained the main source code for the Arduino
 # Libraries, the "hardware variant" are for boards
 # that derives from that, and their source are present in
 # the main Marlin source directory
 CXXSRC += Wire.cpp
 endif
 
-#Check for Arduino 1.0.0 or higher and use the correct sourcefiles for that version
+#Check for Arduino 1.0.0 or higher and use the correct source files for that version
 ifeq ($(shell [ $(ARDUINO_VERSION) -ge 100 ] && echo true), true)
 CXXSRC += main.cpp
 else
 sym: $(BUILD_DIR)/$(TARGET).sym
 
 # Program the device.
-# Do not try to reset an arduino if it's not one
+# Do not try to reset an Arduino if it's not one
 upload: $(BUILD_DIR)/$(TARGET).hex
 ifeq (${AVRDUDE_PROGRAMMER}, arduino)
 	stty hup < $(UPLOAD_PORT); true

Marlin/Marlin.h

 
 #define  FORCE_INLINE __attribute__((always_inline)) inline
 /**
- * Compiler warning on unused varable.
+ * Compiler warning on unused variable.
  */
 #define UNUSED(x) (void) (x)
 
 #endif
 
 #if ENABLED(FILAMENT_SENSOR)
-  extern float filament_width_nominal;  //holds the theoretical filament diameter ie., 3.00 or 1.75
+  extern float filament_width_nominal;  //holds the theoretical filament diameter i.e., 3.00 or 1.75
   extern bool filament_sensor;  //indicates that filament sensor readings should control extrusion
   extern float filament_width_meas; //holds the filament diameter as accurately measured
   extern signed char measurement_delay[];  //ring buffer to delay measurement

Marlin/example_configurations/Felix/Configuration.h

   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 #define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/Felix/Configuration_DUAL.h

   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 //#define SAV_3DLCD
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 #define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/Felix/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/Hephestos/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 10.00
   #define  DEFAULT_bedKi .023
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/Hephestos/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/K8200/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   //#define  DEFAULT_bedKp 10.00
   //#define  DEFAULT_bedKi .023
   //#define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/K8200/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 10.00
   #define  DEFAULT_bedKi .023
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/RigidBot/Configuration.h

   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/RigidBot/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/SCARA/Configuration.h

   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/SCARA/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/TAZ4/Configuration.h

   //#define  DEFAULT_bedKi 60
   //#define  DEFAULT_bedKd 1800
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   //#define  DEFAULT_bedKp 10.00
   //#define  DEFAULT_bedKi .023
   //#define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 #define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/TAZ4/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/WITBOX/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 10.00
   #define  DEFAULT_bedKi .023
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/WITBOX/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/adafruit/ST7565/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 10.00
   #define  DEFAULT_bedKi .023
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/delta/biv2.5/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 10.00
   #define  DEFAULT_bedKi .023
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 1.75  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/delta/biv2.5/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/delta/generic/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 10.00
   #define  DEFAULT_bedKi .023
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/delta/generic/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/delta/kossel_mini/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 10.00
   #define  DEFAULT_bedKi .023
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/delta/kossel_pro/Configuration.h

   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/delta/kossel_xl/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 15.00
   #define  DEFAULT_bedKi .04
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 1.75  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         2.00  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.60  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/makibox/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 10.00
   #define  DEFAULT_bedKi .023
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/makibox/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/example_configurations/tvrrug/Round2/Configuration.h

 
   #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
   #define  DEFAULT_bedKp 10.00
   #define  DEFAULT_bedKi .023
   #define  DEFAULT_bedKd 305.4
 
-  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
   //from pidautotune
   //#define  DEFAULT_bedKp 97.1
   //#define  DEFAULT_bedKi 1.41
   //   This mode is preferred because there are more measurements.
   //
   // - "3-point" mode
-  //   Probe 3 arbitrary points on the bed (that aren't colinear)
+  //   Probe 3 arbitrary points on the bed (that aren't collinear)
   //   You specify the XY coordinates of all 3 points.
 
   // Enable this to sample the bed in a grid (least squares solution).
 
 // @section extras
 
-// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
+// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 #define DEFAULT_NOMINAL_FILAMENT_DIA 3.00  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
 #define MEASURED_UPPER_LIMIT         3.30  //upper limit factor used for sensor reading validation in mm
 #define MEASURED_LOWER_LIMIT         1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define MAX_MEASUREMENT_DELAY       20     //delay buffer size in bytes (1 byte = 1cm) - limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

 
 /******************************************************************************\
  * enable this section if you have TMC26X motor drivers.
- * you need to import the TMC26XStepper library into the arduino IDE for this
+ * you need to import the TMC26XStepper library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section tmc
 
 /******************************************************************************\
  * enable this section if you have L6470  motor drivers.
- * you need to import the L6470 library into the arduino IDE for this
+ * you need to import the L6470 library into the Arduino IDE for this
  ******************************************************************************/
 
 // @section l6470
 
   //#define X_IS_L6470
   #define X_MICROSTEPS 16     //number of microsteps
-  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define X2_IS_L6470
   #define X2_MICROSTEPS 16     //number of microsteps
-  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y_IS_L6470
   #define Y_MICROSTEPS 16     //number of microsteps
-  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Y2_IS_L6470
   #define Y2_MICROSTEPS 16     //number of microsteps
-  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z_IS_L6470
   #define Z_MICROSTEPS 16     //number of microsteps
-  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define Z2_IS_L6470
   #define Z2_MICROSTEPS 16     //number of microsteps
-  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E0_IS_L6470
   #define E0_MICROSTEPS 16     //number of microsteps
-  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E1_IS_L6470
   #define E1_MICROSTEPS 16     //number of microsteps
-  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E2_IS_L6470
   #define E2_MICROSTEPS 16     //number of microsteps
-  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 
   //#define E3_IS_L6470
   #define E3_MICROSTEPS 16     //number of microsteps
-  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be carefull not to go too high
+  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
   #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
   #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall
 

Marlin/language_cn.h

 #ifndef LANGUAGE_CN_H
 #define LANGUAGE_CN_H
 
-#define MAPPER_NON         // For direct asci codes
+#define MAPPER_NON         // For direct ascii codes
 #define DISPLAY_CHARSET_ISO10646_CN
 
 #define WELCOME_MSG                         "\xa4\xa5\xa6\xa7"

Marlin/language_en.h

 #define LANGUAGE_EN_H
 
 #if DISABLED(MAPPER_NON) && DISABLED(MAPPER_C2C3) && DISABLED(MAPPER_D0D1) && DISABLED(MAPPER_D0D1_MOD) && DISABLED(MAPPER_E382E383)
-  #define MAPPER_NON         // For direct asci codes
+  #define MAPPER_NON         // For direct ascii codes
 #endif
 
 //#define SIMULATE_ROMFONT //Comment in to see what is seen on the character based displays

Marlin/language_test.h

 //   impossible to have a close to direct mapping but will need giant conversion tables and fonts (we don't want to have in a embedded system).
 
 
-#define MAPPER_NON         // For direct asci codes ( until now all languages except ru, de, fi, kana_utf8, ... )
+#define MAPPER_NON         // For direct ascii codes ( until now all languages except ru, de, fi, kana_utf8, ... )
 //#define MAPPER_C2C3        // For most European languages when language file is in utf8
 //#define MAPPER_D0D1        // For Cyrillic
 //#define MAPPER_E382E383    // For Katakana

Marlin/planner.cpp

     // Compute maximum allowable entry speed at junction by centripetal acceleration approximation.
     // Let a circle be tangent to both previous and current path line segments, where the junction
     // deviation is defined as the distance from the junction to the closest edge of the circle,
-    // colinear with the circle center. The circular segment joining the two paths represents the
+    // collinear with the circle center. The circular segment joining the two paths represents the
     // path of centripetal acceleration. Solve for max velocity based on max acceleration about the
     // radius of the circle, defined indirectly by junction deviation. This may be also viewed as
     // path width or max_jerk in the previous grbl version. This approach does not actually deviate