Hello! I’m currently experiencing a really strange issue on my CO2 Laser. I was making a jig to hold square whiskey glasses, and I noticed that each square I cut out was progressively larger and larger in the X direction. The requested size is 2.9", and depending on where I’m engraving along the X-Axis, this varies. So in my case, engraving left to right, the X axis of each square measures 2.88", 2.89, 2.94, 2.99, and 3.04. Now, I engraved two sets of squares, and both the top and bottom set of squares measure the exact same. I did this again after this and got the exact same result and measurements. The Y Axis is exactly 2.9 inches every time. I am running this cut at 90% power at 10mm/s.
Here are the things I’ve checked thus far:
Mirror alignment (I know this should really affect the size of the squares with any serious margin)
Bed Level - I leveled each corner and the center of the bed to equal distances of the tip of the nozzle.
X-Axis Calibration - Though this was slightly off, I should still be making the same size square each time.
Making sure my squares are the same in software because maybe I’m just an idiot. (they’re the same, I used the arrange tool)
Belt Tension - Belt Tension is good.
Stepper Motor Step Screws - Screws are tight, pulley is not slipping.
What machine do you have? - Chinese Laser YH7050 60W with 28"x20" bed
What controller does it have? - Ruida Controller
Are you running the latest version of LightBurn? - Yes
Is the issue new, or has it happened before? - I think it’s been happening for a while without me really noticing, I usually do raster engraving work, and I typically tell the machine to run from the center of the piece. The size of the engraving never really mattered.
What kind of computer is it, and what Operating System is it running? Desktop PC with Windows 11.
Usually, I can troubleshoot my machines without much headache, but I’m kind of stumped on this one, so any help is greatly appreciated.