I have asked a couple of people knowledgable about this machine what the problem could be, and was told to run the machine's vector cutting slower and slower each time.
Basically, when the machine switches from raster to vector, and the vector cut has complex curves (example: a rounded-corner or circular nametag, or a tag with a small hole needing to be cut in it), the machine may jerk or jump out of alignment. This happens in a manner so that sometimes it could be X alignment, sometimes Y alignment, or sometimes both that jump. It is a random distance as well, varying from a small fraction of an inch to a full inch. After powering it down and back on, it resets to home perfectly. The machine has been cleaned, and all belts and wheels have been checked. Would anyone happen to have any idea what this problem could be?
The quickfix I have found is to do the raster engraving separately from the vector engraving/cutting, but I am curious to know if this can be fixed.
The machine is a ULS M-300, 40 Watt. Thanks in advance for the help!