The tension feels the same as the other machine and there is no debris on the belt.
The issue really started when it arrived, but it was mild and manageable. I would notice that lines looked wavy and not straight cut or I was not able to flip symmetrical pieces to engrave the other side. It has been getting progressively worse and the engraving issue started today. I use the machine for at least a few hours most days of the week.
Hopefully they will have a solution for me when they reply.
Speaking of the engraving - is that happening on all of the lines, or does it happen on just a few on a sheet full? Does it always happen in the same place on the bed?
Those lines almost look like you have them doubled up on themselves. Since the words are pretty consistent, I’d assume there’s an issue with the file itself. Are you engraving the lines or scoring them?
It’s not a file issue, I have sold hundreds of these using the same file. Here is the same cut just completed on the same material with my old machine. Engraving, not scoring.
Yeah, okay, this is definitely more noticeable. Have you checked the bearing rollers under the laser head? A decent amount of reports have claimed those have been having issues lately. Check to see if yours are cracked or lose or even broken. Other than that, I can’t imagine other suggestions outside of what Jules has mentioned
Okay, that variation on the thicker lines really does look like a belt issue to me…or possibly one of the wheels on the head is cracked.
Try turning off the machine and then lift off the head and inspect the roller wheels on the carriage plate closely for cracks. If they are okay, clean the rails that the wheels roll on thoroughly and see if it solves the problem.
The way the wheels are failing on recent machines, you may not see anything until they break. If you have the machines powered down, however, try gently sliding the head from side to side on each machine and see if the new one feels different. Gently, because you want to be able to feel any difference in how the wheels are riding on the gantry.