Since we have a number of VERY-TALENTED Grbl and/or Lightburn users here… I have a question:
I have a small 2.5 watt laser engraver, Grbl 1.1h laser-mode and M4/M5 control, Lightburn (love it… powerful and runs on Linux!), V1Pi/CNCjs, etc. I’m trying to cut/engrave small, closed, shapes (earrings, pendants, etc)… that don’t close. I’m sure M4 (dynamic power) is the culprit but don’t seem to be having much luck with M3 either… probably me not understanding the myriad settings in Lightburn.
Problem: the engraved/cut shapes not closing leaves the shape attached to the waste with a small, unwanted/unsightly “tab” that has to be cut/broken. It’s ugly, inconvenient, and unnecessary.
Any “special” Lightburn settings, workarounds, alternatives (would like to stay with Grbl) someone might point me to to get the shapes to completely cut/engrave? I’ve searched quite a bit but not yet found/recognized my answer… and thought I would ask all my buddies here. Seems this would have to be a problem that’s already been dealt with… long ago.
Starts at bottom-left and goes CW… seems to finish the cut fine, it’s the start of cut (during acceleration) that seems the issue…