This morning I ran a cut in air in another attempt to track down why I’ve had the machine suddenly stop moving (X-direction only) in every job for the last month. I figured if it was the controller it would still happen - but it didn’t. That suggests something mechanical.
I noticed that the machine was much louder than it had been historically. On checking all the screws, etc. I noticed that a couple of the screws holding the steppers in place were becoming a little loose, especially the X stepper, but also slight loosening on one of the Y motors. Tightening them does seem to help considerably with noise and smoothness.
When I was cleaning the rails and threaded rods I saw that the delrin wheels were starting to look worn:
Should these be replaced? They still seem quite round.
On a separate note - I think I want to lubricate the threaded rods. Can you suggest a dry non-graphite lubricant to use?
Thanks in advance all!