[20260301_115236] [20260302_120746] I think I narrowed down these lines to a rotary module issue. like there’s a slip or something at each step. Has anyone else had these issues? Using 2w 1064nm laser on SS coated cups. Each image is either from Luban or Lightburn and both setup parallel along t…

Because you use the 2w IR laser, you use the latest firmware, right?

Yes I would assume both my machine have the latest firmware. Both were updated when I set them up recently.

I may imagine that - but looking on your first photo, I seem to notice the lines continuing in a second laser job above: [image] That would be a lot of conincidence - and might hint on some production residue from the making of the cups. You have the original in your hands - would you agree with …

they are a little bit off . the top image was accidently defocused a couple mm. I feel like it has something to do with the rotary module but I don’t really want to mess with it, rip it apart or whatever. sometimes the lines are like 1mm apart and sometimes they are 1.5mm apart. I think depending on…

Does the machine rotate, laser 20 lines (for example), rotate, and repeat? Or does it rotate for every single laser line?

tool head moves along the y axis, the machine rotates ccw every single laser line

I don’t uses the rotary device but, how does it know the diameter of the cup?

in software you set the diameter

It seems to be a discrepancy between 1. the diameter setting in the software, 2. the diameter the machine is interpreting that setting, 3. the actual diameter of the cup, and 4. maybe also the position of the cup (the centre of rotation is not where the machine thinks it is). I am thinking the soft…

Rotary issues?

Snapmaker 2.0 (3-in-1) Snapmaker2.0 Troubleshooting guides

xchrisd March 30, 2026, 4:38pm 6

If you are still under warranty I would open a ticket:
https://support.snapmaker.com/hc/en-us/requests/new
Here is a topic about lost steps of the rotary:

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Vertical Lines using Rotary Snapmaker 2.0 (3-in-1) Laser	15	225	March 28, 2026
Please Help Problem With Engraving Snapmaker 2.0 (3-in-1)	6	312	October 15, 2023
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Rotary issues?

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