Pen Up on grbl with a M3S200 command

[ChrisGe (ChrisG)]

I already read a lot about pen info. I have made a DIY plotter. I use a mac. My controller is an Arduino Uno. My pen up/down servo is connected with pin 11. I have to give the command M3S200 for a pen up and M5 for pen down. Is the M3S200 possible with Lightburn?

[berainlb (PY)]

You may want to join the existing very similar Topic here:

GRBL-M3 to have settings like Marlin M3 & M5

Hi guys, I am having a small issue. I am using an Arduino + CNC shield loaded with GRBL to control a Pen Plotter. Using an serial monitor I have set up my limits and settings. My machine also raises the pen with M3 S90 (Laser Off) Drop pen with M5. This is a physical limitation of my design of the machine. Its there an easy way for me to adjust this like you can with Marlin. I know this can work, all I need to do is swap M3 and M5 l. I know this because I can save gcode, open gcode and u…

[ChrisGe (ChrisG)]

Hi, how did you got the M3S90?

[berainlb (PY)]

I’m suggesting that you go to the other Topic and post there as there is existing dialogue.