I’m having a similar issue with the AtomStack A24 Pro. In one of my last tests, I took the laser head off the rail completely and made sure it was perfectly centered, just to rule out any mounting problems. But the issue is still there. What I’m seeing is a stretched, deformed laser spot. So it’s clearly not about how it’s mounted, at least in my case.
AtomStack keeps denying there’s anything wrong and refuses to send a replacement, which is really frustrating.
I’ve shared more details and photos in my thread here:
https://forum.lightburnsoftware.com/t/diode-laser-astigmatism-blurry-vertical-lines-sharp-horizontal-lines-atomstack-a24-pro/173064/10