1064nm Offset Incorrect in Lightburn

Artisan (3-in-1)
1

BLUF: What is the real offset for the 1064nm laser in lightburn? Framing, crosshair, and actual burn position do not match! Not sure how to switch into the 2W laser accurately.

I have a project wherein I cut a jig out of basswood with the 40w module, then switching to the 1064nm (2W) module, but it appears the offsets are incorrect or something else is off with lightburn integration. I am using the available configuration for lightburn with my snapmaker artisan and here is my issue:

Here is my scenario:

  1. Jig is bolted into workspace
  2. Cut a hole in basswood with 40w laser
  3. Switched module to 2w laser
  4. Placed metal coin in jig hole
  5. cut comes out significantly off the target area
    1. using default offset x21.5,y-11

Troubleshooting:

  • Cut target into dark plastic
  • measures x,y difference
    • result was same as built in offset (x21.5,y-11)
  • reversed offset and the Y was closer, with X being slightly off (x-21.5,y11)
2

Hello. Did you set the laser offset in the machine to 0?

If not, set it to 0, but be sure to note the previously set value.

This guide explains it well:

Best regards, Bernhard

3

I suppose ill have to give it a try, but I have used the 40w many times and the offset is perfect. When I frame, the red cross hair shows the burn area, when I burn, it clearly shifts to the laser coordinates. Since they are functionally the same, I assumed something was wrong with my math. Seems odd snapmaker would need such a work around for only one of the laser modules. :frowning:

4

Also, in 2026, Snapmaker made profiles for these lasers with the offset already calculated. Using Ray/Artisan/2.0 with LightBurn | Snapmaker Wiki. So I dont know, something seems off when considering the official Lightburn profile.