I cleaned my air assist fan today and … it did not go well. I am no longer able to cut smooth curves.
The power required to cut through the same materials on my machine has been escalating slowly. Proofgrade materials don’t cut through on Proofgrade settings anymore and, I am seeing the same thing with other materials. I have cleaned all the optics several times (both sides of the lens, head mirror, two windows on the bottom of the head, one on the side of the head, one feeding the head from the left side) with no difference.
As a next step, I thought I would try cleaning the air assist fan. It wasn’t especially dirty but, it’s sparkling clean now.
I reassembled everything – no twists in the belt, teeth are facing inwards, I pushed the right side wheel as far to the right as I could and, tightened it with the Allen wrench while holding it in place. I tried to score a circle and, it was very distorted. After the fifth attempt of removing and reinstalling the head plate assembly, it’s kind of workable but, still detectably not right. Here is a photo of a calibration target scored on card stock:
Here is a shot of part of a card cut a few days ago on the left next to one cut today on the right:
I didn’t think taking the plate off to clean the fan was this fiddly. I generally have pretty good attention to detail (I’ve built hundreds of computers from components, done assorted electronics work, do crafting stuff that requires a fair amount of precision, etc.) but, obviously, I am missing something. I have wiped down the wheels, tracks and belt. It feels like everything moves as it should.
Anyone have any thoughts on what might be off?