my GF started making a weird noise, like a ticking when the fans would spin up. I’ve taken off the exhaust hose and vacuumed away as much of the crap as I can.
I’ve noticed on tests that there seems to be two sets of fan blades, the one furthest inside the machine is spinning up (and making a ticking noise) but a 2nd set of blades closest to the exit isn’t moving at all. (won’t move if given a prod with a brush)
Placing your thumb between the belt and the laser arm near the pulley, push down on the belt while sliding the belt to the right towards the pulley. The belt will slide off of the pulley. Don’t be afraid to use pressure.
Unhook the belt from the motor on the left side
Remove the carriage plate
Place both index fingers on the rear corners of the plate and both thumbs on top of the front wheels. Use your other fingers to support the plate. While keeping the laser arm stable with your thumbs, use your index fingers to pull the plate towards you as far as it will go. Then push down with your thumbs to angle the plate down and towards the back of the Glowforge until the plate pops off of the laser arm.
Placing your index fingers on the back corners of the carriage plate and your thumbs on top of the front wheels, hook the rear wheels on the groove under the laser arm. The front wheels should be mostly visible.
Make sure that the left side of the belt is not twisted and is smooth on the outside and ridged on the inside
Attach the belt on the left side
Using your left hand, set the belt on the front half of the motor (the silver piece on the left hand side below the laser arm) and support it with your fingers by placing them under the motor. The belt will not be fully on the motor. Use your left thumb and fingers to clamp the belt firmly in place and apply pressure.
Still holding the belt and motor firmly with your left hand, use the pressure from your left fingers to guide the belt clockwise around the pulley as your right hand slowly pushes the carriage plate to the left. The belt should roll onto the pulley until it is secure.
Prepare to Print
Gently slide the carriage plate back and forth on the laser arm to ensure that it travels smoothly. If it doesn’t, remove the plate and try again.
Replace the printer head and crumb tray according to these instructions
Turn your Glowforge back on, record a video of another test print, and let us know how it goes!
If you have any questions or concerns, please let me know.