Machine: KeHui K40
Hi Everyone, I’m running into issues cutting or engraving with my K40 using a Cohesion3D LaserBoard and Lightburn software. I can home the laser, jog/move, fire/test etc, but when I actually start a job, the laser will fire for approx. 5 seconds and then either stop moving and firing completely, or continue the job without actually firing. I’ve also had issue with the head skipping and jumping on cuts, including at lower speeds (50mm/sec).
To make try and test that it wasn’t the laser itself that was off, I uninstalled the C3D LaserBoard and reinstalled the stock M2 nano and ran a job with k40 whisperer. Laser cut fine. No skipping, no halting. I reinstalled the C3D board and tried cutting with Lightburn and still ran into the stopping mid-job. I’m not sure if it’s Lightburn, or the LaserBoard. Can you all help me narrow this down? If it’s a helpful detail, my in-cabinet light also stopped working when I initially replaced the M2Nano with the C3D.
Pics included of my setup + board install and other wiring, as well as my test cut + test design.
Setup + wiring
Test design + test cut