So my exhaust grate and fan blades were showing a lot of dust and debris accumulated after a month of regular use, cutting and engraving wood. Yesterday I gave the fan and grate a cleaning with canned air and shop vac. Once I fired the machine back up and sent a job, it was immediately clear that something was wrong. As the laser started working and the fan fired up to full speed, it was now much louder and vibrating the glowforge, easily felt by hand on the back left corner.
I submitted a help ticket with support and am awaiting reply. But in the meantime, I’m curious if anyone has figured out a way to lubricate the fan with machine oil? I don’t see an easy way to get into the fan housing, but I hate to have to send the entire machine back to California for maintenance if it’s as simple as extracting and lubricating the fan.
Do NOT lubricate the fan. It is almost certainly a sealed bearing. The vibration is likely either because the fan is off balance or rubbing something like the grate or a wire. You can get a good look at it if you some a flashlight in from the top of the unit, towards the rear left hand side of the interior. I would resolve this before running the unit anymore a you can easily ruin a fan running it in this state.
Always possible, though hard to see in there. I suppose I could wave my phone around and try to video the far corners. I actually found this screw sitting on top of the fan housing yesterday before cleaning, and for the life of me couldn’t find a similar one anywhere in the machine. But since the noise and vibration started after cleaning, I was hopeful it was unrelated.