So I accidentally dropped my whole sled right onto the Z-axis motor. It immediately would not respond to any commands and failed the motor test. I saw that replacement z motors are not available on the Store, so I did my best to repair it. I took the motor completely apart and cleared some debris from the rotor and got it turning smoothly again. I reassembled the now functioning motor and with a feeling of self-satisfaction tested it out. The motor ran backwards. I changed the Z-axis pitch setting to a negative value and I was off and running with the motor responding correctly.
Now I’ve found a bigger issue. The distance the motor turns is not reliable. It seems to go much further than specified. It I tell it to move .1mm, it will move anywhere from 1mm to 5mm. When I define Zero, it doesn’t stick and will be off by a couple mm when I try to return to it. Seems as though I broke the motor’s ability to index correctly.
In the meanwhile, I’ll stick to manual Z adjustment. I’ve got 2 questions I could use help with.
Anyone have a source from replacement Z motors?
Anyone know if I can still salvage my disobedient motor?