I can't start the program because it gives me error 20, I specify that I have an Atomstak x20 pro, what can I do, can you explain in detail, I tried to get the code from the light burn g code formula, but it not work

[ednisley]

@Maaike

G-codewoorden bestaan uit een letter en een waarde. Letter is niet gevonden.

That type of error generally comes from selecting the wrong laser “device” on a serial port.

This thread has more details:

LightBurn generates an illegal GRBL code for my AtomStack A10 Pro (GRBL 1.1h)

When I draw a simple test pattern in LightBurn and run, I get an error 20 (near line 0). The code at the top of the file is M101 Pxxxx, where xxxx varies. M101 is “turn extruder on”, I’m using a laser cutter. When I comment that line out, everything is fine. I can’t find anywhere in setup where I can tell LightBurn that this is a laser, not a 3D printer. How can I fix this? Thanks Mark

If that solution doesn’t work, then the information @berainlb requested will help figure out what’s wrong.