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Reprap (Marlin) 機器的G code

[複製鏈接]
發表於 2016-5-24 18:52:55 | 顯示全部樓層 |閱讀模式

我一開始學G code是用來控制CNC機器的語言
而Marlin原始碼所提供的G code用來控制3D印表機
和原始CNC的是不同的,但用法相同
http://reprap.org/wiki/G-code

在一段完整的3D列印程式碼中
會有起始star和中止end G code

起始start G code:是用來初始化,使列印頭歸位、加熱噴頭以便後續列印等等
中止end G code:在列印結束後用來使列印頭歸位、冷卻噴頭等等
避免列印完噴頭還持續加熱,或噴頭停在最後列印的位置

在切片軟體Cura中的start.Gcode
其中G28為復位指令,是必須的
若沒有此指令噴頭將不會歸零
會導致Z軸位置錯誤
  1. M109 S210.000000 ;加熱噴頭到210度
  2. ;Sliced at: Wed 04-05-2016 00:35:45
  3. ;Basic settings: Layer height: 0.2 Walls: 1.2 Fill: 40
  4. ;Print time: 4 hours 10 minutes
  5. ;Filament used: 13.32m 39.0g
  6. ;Filament cost: 20.66
  7. G21        ;metric values設定單位為 mm
  8. G90        ;absolute positioning 絕對座標
  9. M107       ;start with the fan off 關閉第2冷卻風扇
  10. G28   ;move to endstops 復位
  11. G92 E0                  ;zero the extruded length 擠出座標軸E歸零
  12. G1 F200 E3              ;extrude 3mm of feed stock 擠出3mm線料,速度200mm/min
  13. G92 E0                  ;zero the extruded length again 擠出座標軸E歸零
  14. G1 F6000 移動速度6000mm/min
  15. ;Put printing message on LCD screen
  16. M117 Printing... ; LCD顯示Printing...
複製代碼
在切片軟體Cura中的End.Gcode

  1. ;End GCode
  2. M104 S0                     ;extruder heater off 加熱頭關閉
  3. M140 S0                     ;heated bed heater off (if you have it)加熱床關閉
  4. ;G91                                    ;relative positioning
  5. ;G1 E-1 F300                            ;retract the filament a bit before lifting the nozzle, to release some of the pressure
  6. ;G1 Z+0.5 E-5 X-20 Y-20 F{travel_speed} ;move Z up a bit and retract filament even more
  7. G28   ;move to endstops 復位
  8. M84                         ;steppers off 關閉步進馬達
  9. ;G90                         ;absolute positioning
複製代碼
以下為marlin原始碼的的G code註解
//Implemented Codes
//-------------------
// G0  -> G1
// G1  - Coordinated Movement X Y Z E
// G2  - CW ARC
// G3  - CCW ARC
// G4  - Dwell S<seconds> or P<milliseconds>
// G10 - retract filament according to settings of M207
// G11 - retract recover filament according to settings of M208
// G28 - Home all Axis
// G29 - Detailed Z-Probe, probes the bed at 3 points.  You must de at the home position for this to work correctly.
// G30 - Single Z Probe, probes bed at current XY location.
// G90 - Use Absolute Coordinates
// G91 - Use Relative Coordinates
// G92 - Set current position to cordinates given

// M Codes
// M0   - Unconditional stop - Wait for user to press a button on the LCD (Only if ULTRA_LCD is enabled)
// M1   - Same as M0
// M17  - Enable/Power all stepper motors
// M18  - Disable all stepper motors; same as M84
// M20  - List SD card
// M21  - Init SD card
// M22  - Release SD card
// M23  - Select SD file (M23 filename.g)
// M24  - Start/resume SD print
// M25  - Pause SD print
// M26  - Set SD position in bytes (M26 S12345)
// M27  - Report SD print status
// M28  - Start SD write (M28 filename.g)
// M29  - Stop SD write
// M30  - Delete file from SD (M30 filename.g)
// M31  - Output time since last M109 or SD card start to serial
// M32  - Select file and start SD print (Can be used _while_ printing from SD card files):
//        syntax "M32 /path/filename#", or "M32 S<startpos bytes> !filename#"
//        Call gcode file : "M32 P !filename#" and return to caller file after finishing (simiarl to #include).
//        The '#' is necessary when calling from within sd files, as it stops buffer prereading
// M42  - Change pin status via gcode Use M42 Px Sy to set pin x to value y, when omitting Px the onboard led will be used.
// M80  - Turn on Power Supply
// M81  - Turn off Power Supply
// M82  - Set E codes absolute (default)
// M83  - Set E codes relative while in Absolute Coordinates (G90) mode
// M84  - Disable steppers until next move,
//        or use S<seconds> to specify an inactivity timeout, after which the steppers will be disabled.  S0 to disable the timeout.
// M85  - Set inactivity shutdown timer with parameter S<seconds>. To disable set zero (default)
// M92  - Set axis_steps_per_unit - same syntax as G92
// M104 - Set extruder target temp
// M105 - Read current temp
// M106 - Fan on
// M107 - Fan off
// M109 - Sxxx Wait for extruder current temp to reach target temp. Waits only when heating
//        Rxxx Wait for extruder current temp to reach target temp. Waits when heating and cooling
// M114 - Output current position to serial port
// M115 - Capabilities string
// M117 - display message
// M119 - Output Endstop status to serial port
// M126 - Solenoid Air Valve Open (BariCUDA support by jmil)
// M127 - Solenoid Air Valve Closed (BariCUDA vent to atmospheric pressure by jmil)
// M128 - EtoP Open (BariCUDA EtoP = electricity to air pressure transducer by jmil)
// M129 - EtoP Closed (BariCUDA EtoP = electricity to air pressure transducer by jmil)
// M140 - Set bed target temp
// M150 - Set BlinkM Colour Output R: Red<0-255> U(!): Green<0-255> B: Blue<0-255> over i2c, G for green does not work.
// M190 - Sxxx Wait for bed current temp to reach target temp. Waits only when heating
//        Rxxx Wait for bed current temp to reach target temp. Waits when heating and cooling
// M200 D<millimeters>- set filament diameter and set E axis units to cubic millimeters (use S0 to set back to millimeters).
// M201 - Set max acceleration in units/s^2 for print moves (M201 X1000 Y1000)
// M202 - Set max acceleration in units/s^2 for travel moves (M202 X1000 Y1000) Unused in Marlin!!
// M203 - Set maximum feedrate that your machine can sustain (M203 X200 Y200 Z300 E10000) in mm/sec
// 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
// M205 -  advanced settings:  minimum travel speed S=while printing T=travel only,  B=minimum segment time X= maximum xy jerk, Z=maximum Z jerk, E=maximum E jerk
// M206 - set additional homeing offset
// M207 - set retract length S[positive mm] F[feedrate mm/min] Z[additional zlift/hop], stays in mm regardless of M200 setting
// M208 - set recover=unretract length S[positive mm surplus to the M207 S*] F[feedrate mm/min]
// M209 - S<1=true/0=false> enable automatic retract detect if the slicer did not support G10/11: every normal extrude-only move will be classified as retract depending on the direction.
// M218 - set hotend offset (in mm): T<extruder_number> X<offset_on_X> Y<offset_on_Y>
// M220 S<factor in percent>- set speed factor override percentage
// M221 S<factor in percent>- set extrude factor override percentage
// M226 P<pin number> S<pin state>- Wait until the specified pin reaches the state required
// M240 - Trigger a camera to take a photograph
// M250 - Set LCD contrast C<contrast value> (value 0..63)
// M280 - set servo position absolute. P: servo index, S: angle or microseconds
// M300 - Play beepsound S<frequency Hz> P<duration ms>
// M301 - Set PID parameters P I and D
// M302 - Allow cold extrudes, or set the minimum extrude S<temperature>.
// M303 - PID relay autotune S<temperature> sets the target temperature. (default target temperature = 150C)
// M304 - Set bed PID parameters P I and D
// M400 - Finish all moves
// M401 - Lower z-probe if present
// M402 - Raise z-probe if present
// M500 - stores paramters in EEPROM
// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
// M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
// M503 - print the current settings (from memory not from eeprom)
// M540 - Use S[0|1] to enable or disable the stop SD card print on endstop hit (requires ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED)
// M600 - Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]
// M666 - set delta endstop adjustemnt
// M605 - Set dual x-carriage movement mode: S<mode> [ X<duplication x-offset> R<duplication temp offset> ]
// M907 - Set digital trimpot motor current using axis codes.
// M908 - Control digital trimpot directly.
// M350 - Set microstepping mode.
// M351 - Toggle MS1 MS2 pins directly.
// M928 - Start SD logging (M928 filename.g) - ended by M29
// M999 - Restart after being stopped by error

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