marlin/Marlin/Configuration.h

#ifndef __CONFIGURATION_H
#define __CONFIGURATION_H

//#define DEBUG_STEPS

#define MM_PER_ARC_SEGMENT 1
#define N_ARC_CORRECTION 25

// BASIC SETTINGS: select your board type, thermistor type, axis scaling, and endstop configuration

//// The following define selects which electronics board you have. Please choose the one that matches your setup
// MEGA/RAMPS up to 1.2 = 3,
// RAMPS 1.3 = 33
// Gen6 = 5,
// Sanguinololu 1.2 and above = 62
// Ultimaker = 7,
// Teensylu = 8
#define MOTHERBOARD 7



//// Thermistor settings:
// 1 is 100k thermistor
// 2 is 200k thermistor
// 3 is mendel-parts thermistor
// 4 is 10k thermistor
// 5 is ParCan supplied 104GT-2 100K
// 6 is EPCOS 100k
// 7 is 100k Honeywell thermistor 135-104LAG-J01
#define THERMISTORHEATER_0 3
#define THERMISTORHEATER_1 3
#define THERMISTORBED 3

//#define HEATER_0_USES_THERMISTOR
//#define HEATER_1_USES_THERMISTOR
#define HEATER_0_USES_AD595
//#define HEATER_1_USES_AD595

// Select one of these only to define how the bed temp is read.
//#define BED_USES_THERMISTOR
//#define BED_USES_AD595

#define HEATER_CHECK_INTERVAL 50
#define BED_CHECK_INTERVAL 5000


//// Endstop Settings
#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
// The pullups are needed if you directly connect a mechanical endswitch between the signal and ground pins.
const bool ENDSTOPS_INVERTING = true; // set to true to invert the logic of the endstops. 
// For optos H21LOB set to true, for Mendel-Parts newer optos TCST2103 set to false

// This determines the communication speed of the printer
#define BAUDRATE 250000
//#define BAUDRATE 115200
//#define BAUDRATE 230400

// Comment out (using // at the start of the line) to disable SD support:

// #define ULTRA_LCD  //any lcd 

#define ULTIPANEL
#ifdef ULTIPANEL
  //#define NEWPANEL  //enable this if you have a click-encoder panel
  #define SDSUPPORT
  #define ULTRA_LCD
  #define LCD_WIDTH 20
  #define LCD_HEIGHT 4
#else //no panel but just lcd 
  #ifdef ULTRA_LCD
    #define LCD_WIDTH 16
    #define LCD_HEIGHT 2
  #endif
#endif


//#define SDSUPPORT // Enable SD Card Support in Hardware Console



const int dropsegments=5; //everything with this number of steps  will be ignored as move

//// ADVANCED SETTINGS - to tweak parameters

#include "thermistortables.h"

// For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1
#define X_ENABLE_ON 0
#define Y_ENABLE_ON 0
#define Z_ENABLE_ON 0
#define E_ENABLE_ON 0

// Disables axis when it's not being used.
#define DISABLE_X false
#define DISABLE_Y false
#define DISABLE_Z false
#define DISABLE_E false

// Inverting axis direction
#define INVERT_X_DIR true    // for Mendel set to false, for Orca set to true
#define INVERT_Y_DIR false   // for Mendel set to true, for Orca set to false
#define INVERT_Z_DIR true    // for Mendel set to false, for Orca set to true
#define INVERT_E_DIR false   // for direct drive extruder v9 set to true, for geared extruder set to false

//// ENDSTOP SETTINGS:
// Sets direction of endstops when homing; 1=MAX, -1=MIN
#define X_HOME_DIR -1
#define Y_HOME_DIR -1
#define Z_HOME_DIR -1

#define min_software_endstops false //If true, axis won't move to coordinates less than zero.
#define max_software_endstops false  //If true, axis won't move to coordinates greater than the defined lengths below.
#define X_MAX_LENGTH 210
#define Y_MAX_LENGTH 210
#define Z_MAX_LENGTH 210

//// MOVEMENT SETTINGS
#define NUM_AXIS 4 // The axis order in all axis related arrays is X, Y, Z, E
//note: on bernhards ultimaker 200 200 12 are working well.
#define HOMING_FEEDRATE {50*60, 50*60, 12*60, 0}  // set the homing speeds

#define AXIS_RELATIVE_MODES {false, false, false, false}

#define MAX_STEP_FREQUENCY 40000 // Max step frequency for Ultimaker (5000 pps / half step)

// default settings 

#define DEFAULT_AXIS_STEPS_PER_UNIT   {79.87220447,79.87220447,200*8/3,14}                    // default steps per unit for ultimaker 
#define DEFAULT_MAX_FEEDRATE          {160*60, 160*60, 10*60, 500000}        
#define DEFAULT_MAX_ACCELERATION      {9000,9000,150,10000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for skeinforge 40+, for older versions raise them a lot.

#define DEFAULT_ACCELERATION          3000    // X, Y, Z and E max acceleration in mm/s^2 for printing moves 
#define DEFAULT_RETRACT_ACCELERATION  7000   // X, Y, Z and E max acceleration in mm/s^2 for r retracts

#define DEFAULT_MINIMUMFEEDRATE       10     // minimum feedrate
#define DEFAULT_MINTRAVELFEEDRATE     10

// minimum time in microseconds that a movement needs to take if the buffer is emptied.   Increase this number if you see blobs while printing high speed & high detail.  It will slowdown on the detailed stuff.
#define DEFAULT_MINSEGMENTTIME        20000
#define DEFAULT_XYJERK                30.0*60    
#define DEFAULT_ZJERK                 10.0*60


// The watchdog waits for the watchperiod in milliseconds whenever an M104 or M109 increases the target temperature
//this enables the watchdog interrupt.
#define USE_WATCHDOG
//you cannot reboot on a mega2560 due to a bug in he bootloader. Hence, you have to reset manually, and this is done hereby:
#define RESET_MANUAL

#define WATCHDOG_TIMEOUT 4



//// Experimental watchdog and minimal temp
// The watchdog waits for the watchperiod in milliseconds whenever an M104 or M109 increases the target temperature
// If the temperature has not increased at the end of that period, the target temperature is set to zero. It can be reset with another M104/M109
/// CURRENTLY NOT IMPLEMENTED AND UNUSEABLE
//#define WATCHPERIOD 5000 //5 seconds

// Actual temperature must be close to target for this long before M109 returns success
//#define TEMP_RESIDENCY_TIME 20  // (seconds)
//#define TEMP_HYSTERESIS 5       // (C°) range of +/- temperatures considered "close" to the target one

//// The minimal temperature defines the temperature below which the heater will not be enabled
#define HEATER_0_MINTEMP 5
//#define HEATER_1_MINTEMP 5
//#define BED_MINTEMP 5


// When temperature exceeds max temp, your heater will be switched off.
// This feature exists to protect your hotend from overheating accidentally, but *NOT* from thermistor short/failure!
// You should use MINTEMP for thermistor short/failure protection.
#define HEATER_0_MAXTEMP 275
//#define_HEATER_1_MAXTEMP 275
//#define BED_MAXTEMP 150

/// PID settings:
// Uncomment the following line to enable PID support.
  
#define PIDTEMP
#ifdef PIDTEMP
  //#define PID_DEBUG // Sends debug data to the serial port. 
  //#define PID_OPENLOOP 1 // Puts PID in open loop. M104 sets the output power in %
  
  #define PID_MAX 255 // limits current to nozzle; 255=full current
  #define PID_INTEGRAL_DRIVE_MAX 255  //limit for the integral term
  #define K1 0.95 //smoothing factor withing the PID
  #define PID_dT 0.1 //sampling period of the PID

  //To develop some PID settings for your machine, you can initiall follow 
  // the Ziegler-Nichols method.
  // set Ki and Kd to zero. 
  // heat with a defined Kp and see if the temperature stabilizes
  // ideally you do this graphically with repg.
  // the PID_CRITIAL_GAIN should be the Kp at which temperature oscillatins are not dampned out/decreas in amplitutde
  // PID_SWING_AT_CRITIAL is the time for a full period of the oscillations at the critical Gain
  // usually further manual tunine is necessary.

  #define PID_CRITIAL_GAIN 3000
  #define PID_SWING_AT_CRITIAL 45 //seconds
  
  #define PID_PI    //no differentail term
  //#define PID_PID //normal PID

  #ifdef PID_PID
    //PID according to Ziegler-Nichols method
    #define  DEFAULT_Kp  (0.6*PID_CRITIAL_GAIN)
    #define  DEFAULT_Ki (2*Kp/PID_SWING_AT_CRITIAL*PID_dT)  
    #define  DEFAULT_Kd (PID_SWING_AT_CRITIAL/8./PID_dT)  
  #endif
 
  #ifdef PID_PI
    //PI according to Ziegler-Nichols method
    #define  DEFAULT_Kp (PID_CRITIAL_GAIN/2.2) 
    #define  DEFAULT_Ki (1.2*Kp/PID_SWING_AT_CRITIAL*PID_dT)
    #define  DEFAULT_Kd (0)
  #endif
  
  // this adds an experimental additional term to the heatingpower, proportional to the extrusion speed.
  // if Kc is choosen well, the additional required power due to increased melting should be compensated.
  #define PID_ADD_EXTRUSION_RATE  
  #ifdef PID_ADD_EXTRUSION_RATE
    #define  DEFAULT_Kc (5) //heatingpower=Kc*(e_speed)
  #endif
#endif // PIDTEMP

// extruder advance constant (s2/mm3)
//
// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTUDER_ADVANCE_K * cubic mm per second ^ 2
//
// hooke's law says:		force = k * distance
// bernoulli's priniciple says:	v ^ 2 / 2 + g . h + pressure / density = constant
// so: v ^ 2 is proportional to number of steps we advance the extruder
//#define ADVANCE

#ifdef ADVANCE
  #define EXTRUDER_ADVANCE_K .3

  #define D_FILAMENT 1.7
  #define STEPS_MM_E 65
  #define EXTRUTION_AREA (0.25 * D_FILAMENT * D_FILAMENT * 3.14159)
  #define STEPS_PER_CUBIC_MM_E (axis_steps_per_unit[E_AXIS]/ EXTRUTION_AREA)

#endif // ADVANCE

// The number of linear motions that can be in the plan at any give time.  
// THE BLOCK_BUFFER_SIZE NEEDS TO BE A POWER OF 2, i.g. 8,16,32 because shifts and ors are used to do the ringbuffering.
#if defined SDSUPPORT
  #define BLOCK_BUFFER_SIZE 16   // SD,LCD,Buttons take more memory, block buffer needs to be smaller
#else
  #define BLOCK_BUFFER_SIZE 16 // maximize block buffer
#endif

//The ASCII buffer for recieving from the serial:
#define MAX_CMD_SIZE 96
#define BUFSIZE 4

#endif //__CONFIGURATION_H