For a while now my forge has been failing to consistently cut proofgrade material. It also manifests when settings that had reliably been cutting other materials quit resulting in clean cuts.
Since an early failed cutting job, and learning the importance of material being flat, I’ve been using rare earth magnets to ensure all materials are firmly held flat to the tray. I’ve been like Rick in that short where he shows Morty “True Level”, so I don’t think that’s the issue.
The first time I noticed this seemingly inconsistent power was at about twelve hours of use (I’ve loosely tracked the duration of every job on the forge in a spreadsheet). I wondered if it might be dirty interior surfaces, so I went ahead and wiped down the reflectors inside (but not the lens) despite it being nowhere near forty hours of use. At around twenty hours the problem showed up again, I repeated the cleaning job but this time it didn’t seem to work, and even pg cuts haven’t completed consistently since. They’re almost done, to the point I can take a hobby knife and trim them on out, but this is a far cry from the beautiful job the machine was doing earlier on.
Reading about similar issues in the forums, I made sure the tray was correctly seated and did a test cut of the gift of good measure in draftboard earlier today. Again it was very close, but the piece remained in the source material and a picture shows the little spots that didn’t quiiiiiite get cut all the way through.
After that test, a small job in pg medium cherry ply worked, which is what leads me to describe this behavior as ‘inconsistent’.
So it’s at just over 22 hours of use now (I know, still practically unused, I just don’t get to play with it nearly as much as I’d like), again nowhere near the 40 hours recommended for a lens cleaning but I’m wondering, might that help? It also looks like it’s really far off from the 120 hours at which the head mirror might need it, but again maybe something somewhere has just stuck to a critical surface?
I assume the electronics are pretty reliable, are there known issues with the tube that might cause this behavior?
Any guidance from the support team or knowledgeable forgers is appreciated.