Plotty (GCode Generator for Pen Plotter) This is the ongoing replacement extension for the old Plaster. We us this for our self-build pen plotter called Plotty.   This tool can be used with different GCode flavours: Marlin: M280 P0 0..180  (float value) Smoothie: M280 P0 5..10   (float value; 0 turns off the servo) Repetier: M340 P0 500..2500 (int value)