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WARNING:
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--------
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-THIS IS RELEASE CANDIDATE 2 FOR MARLIN 1.0.0
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+This is an experimental modification to allow PID on your bed heater.
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-The configuration is now split in two files
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-Configuration.h for the normal settings
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-Configuration_adv.h for the advanced settings
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+This will run at the same frequency as the main PID loop. Make sure you heater FET or SSR can do this. I use a fotek SSR-10DA and it's fine
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-Gen7T is not supported.
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+add something like this to you configuration (pulling this branch will get you this
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-Quick Information
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-===================
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-This RepRap firmware is a mashup between <a href="https://github.com/kliment/Sprinter">Sprinter</a>, <a href="https://github.com/simen/grbl/tree">grbl</a> and many original parts.
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+~~~~~~~~~~~~~~~~~~~~
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+#define PIDTEMPBED
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-Derived from Sprinter and Grbl by Erik van der Zalm.
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-Sprinters lead developers are Kliment and caru.
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-Grbls lead developer is Simen Svale Skogsrud. Sonney Jeon (Chamnit) improved some parts of grbl
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-A fork by bkubicek for the Ultimaker was merged, and further development was aided by him.
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-Some features have been added by:
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-Lampmaker, Bradley Feldman, and others...
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+//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, argressive factor of .15 (vs .1, 1, 10)
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+ #define DEFAULT_bedKp 10.00
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+ #define DEFAULT_bedKi .023
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+ #define DEFAULT_bedKd 305.4
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+~~~~~~~~~~~~~~~~~~~~
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-Features:
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-
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-* Interrupt based movement with real linear acceleration
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-* High steprate
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-* Look ahead (Keep the speed high when possible. High cornering speed)
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-* Interrupt based temperature protection
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-* preliminary support for Matthew Roberts advance algorithm
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- For more info see: http://reprap.org/pipermail/reprap-dev/2011-May/003323.html
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-* Full endstop support
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-* SD Card support
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-* SD Card folders (works in pronterface)
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-* SD Card autostart support
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-* LCD support (ideally 20x4)
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-* LCD menu system for autonomous SD card printing, controlled by an click-encoder.
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-* EEPROM storage of e.g. max-velocity, max-acceleration, and similar variables
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-* many small but handy things originating from bkubicek's fork.
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-* Arc support
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-* Temperature oversampling
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-* Dynamic Temperature setpointing aka "AutoTemp"
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-* Support for QTMarlin, a very beta GUI for PID-tuning and velocity-acceleration testing. https://github.com/bkubicek/QTMarlin
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-* Endstop trigger reporting to the host software.
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-* Updated sdcardlib
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-* Heater power reporting. Useful for PID monitoring.
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-* PID tuning
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-* CoreXY kinematics (www.corexy.com/theory.html)
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-
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-The default baudrate is 250000. This baudrate has less jitter and hence errors than the usual 115200 baud, but is less supported by drivers and host-environments.
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-
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-
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-Differences and additions to the already good Sprinter firmware:
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-================================================================
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-
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-*Look-ahead:*
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-
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-Marlin has look-ahead. While sprinter has to break and re-accelerate at each corner,
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-lookahead will only decelerate and accelerate to a velocity,
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-so that the change in vectorial velocity magnitude is less than the xy_jerk_velocity.
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-This is only possible, if some future moves are already processed, hence the name.
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-It leads to less over-deposition at corners, especially at flat angles.
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-
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-*Arc support:*
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-
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-Slic3r can find curves that, although broken into segments, were ment to describe an arc.
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-Marlin is able to print those arcs. The advantage is the firmware can choose the resolution,
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-and can perform the arc with nearly constant velocity, resulting in a nice finish.
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-Also, less serial communication is needed.
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-
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-*Temperature Oversampling:*
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-
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-To reduce noise and make the PID-differential term more useful, 16 ADC conversion results are averaged.
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-
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-*AutoTemp:*
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-
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-If your gcode contains a wide spread of extruder velocities, or you realtime change the building speed, the temperature should be changed accordingly.
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-Usually, higher speed requires higher temperature.
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-This can now be performed by the AutoTemp function
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-By calling M109 S<mintemp> T<maxtemp> F<factor> you enter the autotemp mode.
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-
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-You can leave it by calling M109 without any F.
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-If active, the maximal extruder stepper rate of all buffered moves will be calculated, and named "maxerate" [steps/sec].
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-The wanted temperature then will be set to t=tempmin+factor*maxerate, while being limited between tempmin and tempmax.
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-If the target temperature is set manually or by gcode to a value less then tempmin, it will be kept without change.
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-Ideally, your gcode can be completely free of temperature controls, apart from a M109 S T F in the start.gcode, and a M109 S0 in the end.gcode.
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-
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-*EEPROM:*
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-
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-If you know your PID values, the acceleration and max-velocities of your unique machine, you can set them, and finally store them in the EEPROM.
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-After each reboot, it will magically load them from EEPROM, independent what your Configuration.h says.
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-
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-*LCD Menu:*
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-
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-If your hardware supports it, you can build yourself a LCD-CardReader+Click+encoder combination. It will enable you to realtime tune temperatures,
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-accelerations, velocities, flow rates, select and print files from the SD card, preheat, disable the steppers, and do other fancy stuff.
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-One working hardware is documented here: http://www.thingiverse.com/thing:12663
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-Also, with just a 20x4 or 16x2 display, useful data is shown.
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-*SD card folders:*
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-
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-If you have an SD card reader attached to your controller, also folders work now. Listing the files in pronterface will show "/path/subpath/file.g".
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-You can write to file in a subfolder by specifying a similar text using small letters in the path.
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-Also, backup copies of various operating systems are hidden, as well as files not ending with ".g".
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-
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-*SD card folders:*
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-
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-If you place a file auto[0-9].g into the root of the sd card, it will be automatically executed if you boot the printer. The same file will be executed by selecting "Autostart" from the menu.
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-First *0 will be performed, than *1 and so on. That way, you can heat up or even print automatically without user interaction.
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-*Endstop trigger reporting:*
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-
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-If an endstop is hit while moving towards the endstop, the location at which the firmware thinks that the endstop was triggered is outputed on the serial port.
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-This is useful, because the user gets a warning message.
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-However, also tools like QTMarlin can use this for finding acceptable combinations of velocity+acceleration.
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-*Coding paradigm:*
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-Not relevant from a user side, but Marlin was split into thematic junks, and has tried to partially enforced private variables.
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-This is intended to make it clearer, what interacts which what, and leads to a higher level of modularization.
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-We think that this is a useful prestep for porting this firmware to e.g. an ARM platform in the future.
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-A lot of RAM (with enabled LCD ~2200 bytes) was saved by storing char []="some message" in Program memory.
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-In the serial communication, a #define based level of abstraction was enforced, so that it is clear that
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-some transfer is information (usually beginning with "echo:"), an error "error:", or just normal protocol,
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-necessary for backwards compatibility.
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-
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-*Interrupt based temperature measurements:*
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-An interrupt is used to manage ADC conversions, and enforce checking for critical temperatures.
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-This leads to less blocking in the heater management routine.
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-Non-standard M-Codes, different to an old version of sprinter:
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-==============================================================
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-Movement:
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-* G2 - CW ARC
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-* G3 - CCW ARC
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-General:
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-* M17 - Enable/Power all stepper motors. Compatibility to ReplicatorG.
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-* M18 - Disable all stepper motors; same as M84.Compatibility to ReplicatorG.
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-* M30 - Print time since last M109 or SD card start to serial
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-* M42 - Change pin status via gcode
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-* M80 - Turn on Power Supply
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-* M81 - Turn off Power Supply
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-* M114 - Output current position to serial port
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-* M119 - Output Endstop status to serial port
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-Movement variables:
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-* M202 - Set max acceleration in units/s^2 for travel moves (M202 X1000 Y1000) Unused in Marlin!!
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-* M203 - Set maximum feedrate that your machine can sustain (M203 X200 Y200 Z300 E10000) in mm/sec
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-* M204 - Set default acceleration: S normal moves T filament only moves (M204 S3000 T7000) im mm/sec^2 also sets minimum segment time in ms (B20000) to prevent buffer underruns and M20 minimum feedrate
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-* M206 - set home offsets. This sets the X,Y,Z coordinates of the endstops (and is added to the {X,Y,Z}_HOME_POS configuration options (and is also added to the coordinates, if any, provided to G82, as with earlier firmware)
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-* M220 - set build speed mulitplying S:factor in percent ; aka "realtime tuneing in the gcode". So you can slow down if you have islands in one height-range, and speed up otherwise.
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-* M221 - set the extrude multiplying S:factor in percent
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-* M400 - Finish all buffered moves.
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-Temperature variables:
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-* M301 - Set PID parameters P I and D
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-* M302 - Allow cold extrudes
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-* M303 - PID relay autotune S<temperature> sets the target temperature. (default target temperature = 150C)
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-Advance:
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-* M200 - Set filament diameter for advance
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-* M205 - advanced settings: minimum travel speed S=while printing T=travel only, B=minimum segment time X= maximum xy jerk, Z=maximum Z jerk
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-EEPROM:
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-* M500 - stores paramters in EEPROM. This parameters are stored: axis_steps_per_unit, max_feedrate, max_acceleration ,acceleration,retract_acceleration,
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- minimumfeedrate,mintravelfeedrate,minsegmenttime, jerk velocities, PID
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-* M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
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-* M502 - reverts to the default "factory settings". You still need to store them in EEPROM afterwards if you want to.
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-* M503 - print the current settings (from memory not from eeprom)
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-
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-MISC:
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-* M240 - Trigger a camera to take a photograph
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-* M999 - Restart after being stopped by error
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-Configuring and compilation:
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-============================
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-
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-Install the arduino software IDE/toolset v22
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- http://www.arduino.cc/en/Main/Software
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-
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-For gen6 and sanguinololu the Sanguino directory in the Marlin dir needs to be copied to the arduino environment.
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- copy Marlin\sanguino <arduino home>\hardware\Sanguino
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-
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-Install Ultimaker's RepG 25 build
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- http://software.ultimaker.com
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-For SD handling and as better substitute (apart from stl manipulation) download
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-the very nice Kliment's printrun/pronterface https://github.com/kliment/Printrun
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-
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-Copy the Ultimaker Marlin firmware
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- https://github.com/ErikZalm/Marlin/tree/Marlin_v1
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- (Use the download button)
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-
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-Start the arduino IDE.
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-Select Tools -> Board -> Arduino Mega 2560 or your microcontroller
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-Select the correct serial port in Tools ->Serial Port
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-Open Marlin.pde
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-
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-Click the Verify/Compile button
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-
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-Click the Upload button
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-If all goes well the firmware is uploading
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-
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-Start Ultimaker's Custom RepG 25
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-Make sure Show Experimental Profiles is enabled in Preferences
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-Select Sprinter as the Driver
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-
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-Press the Connect button.
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-KNOWN ISSUES: RepG will display: Unknown: marlin x.y.z
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-
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-That's ok. Enjoy Silky Smooth Printing.
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+Autotune works for the bed. Give it an "M303 E-1 C8 S90" to run autotune on the bed at 90 degrees for 8 cycles.
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ErikZalm
11 лет назад