* M17 - Enable/Power all stepper motors. Compatibility to ReplicatorG.
* M18 - Disable all stepper motors; same as M84.Compatibility to ReplicatorG.
* M30 - Print time since last M109 or SD card start to serial
* M42 - Change pin status via gcode
* M80 - Turn on Power Supply
@ -137,9 +140,9 @@ Movement variables:
* 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
* M220 - set build speed factor override percentage S:factor in percent ; aka "realtime tuneing in the gcode"
* 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.