I'm using eBay 50W machine (SH-g350) w/ RDWorks v8. When cutting some PCB stencils I noticed a disturbing drift in X axis. The further laser hed travels in X axis, the more pads shift to the right. PCB was about 5x3 cm. so for example pads located at 50mm mark were actually cut at 52mm position.
I thought mayby RDWorks messed up imported png file, so i turned it 90 degrees and send to laser cutter, and now pads were cut correctly... Now head only traveled max 30mm in the x direction so shift wasnt noticabke. Is it hardware issue or firmware or software?
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Moderator: baker
Re: Scanning/etching drift
I have had a similar issue with a new machine I bought - it drifted in both axis and gave me oval circles in the engrave mode. I eventually traced it down to the stepper drivers which I replaced - I assume they were an early version of the 3DM580 or the firmware wasn't up to date. Anyway, replacing them fixed the problem