The photos show a horse coin that I engraved last week that was relatively perfect. The second photo is another run of the same depth map with different text that I did this morning. There have been no changes or other jobs done in between.
I’ve had this problem before but I was running a lens with damaged coating so I thought that was the trouble. But this is with a new lens that has been fully calibrated and adjusted. Both coins are done with the same lens and settings, only different text.
I’m pretty sure this is a problem with my laser but a Reddit user said he had a similar problem and it was something to do with Lightburn. He told me to recreate the file and it would be ok. It’s not.
The third photo shows the framing for the recreated job with the weird triangle shape (that doesn’t exist in the design), but the weak point of the engraving still ends up in the same place on the coin, opposite of the triangle.
Can anyone tell me where that triangle is coming from? Maybe something to do with masking with a circular tool layer? Makes no sense to me. I appreciate any input.
The red dot used for framing is always on. Depending on the design and Framing Style this can make it look as if you were to draw something without lifting the pen.
It’s hard to see anything in the second picture. Did you let this job run completely, or was it cancelled mid-job?
If you haven’t changed any settings, it could be a wrong focal height.
To be sure: Were these two coins made with the same lens?
I don’t know what “recreate the file” means, but it’s easy to miss a setting. If possible, share another detailed picture of the failed attempt and send the project file (.lbrn2) for investigation.
Looking at your outline, I’d think more along the lines of a failed galvo but at this point it could be lots of things.
If you have tool lines surrounding the coin, that might make it more easy to see a difference. These selections are on the framing gui in Lightburn. I almost always use tool layers for this, at least in most of my fiber jobs.
They were both made with the same lens and same settings. The only difference is the text. Nothing on the laser changed, either. Since I didn’t run other jobs in between, the focal distance was exactly the same. I’ll send it to Lightburn after I hear from Cloudray, since I have a hunch that it’s a hardware issue. Thanks!
When I first got the laser, it had a faulty lens, but these were both made with the new lens, which is cleaned before every job. I’ll try moving the design and see if the weak spot moves. Thanks for the great idea!
I do have 2 round tool lines, one that surrounds the area where I want the image and used for masking, and another around the outside that I TRY to line up to the engravable flat area of the coin. Both are set to frame.
