Great call on removing the belts. Apparently dirt cheap bearing blocks have a lot of slop in them, oops. The Y axis motor that sits on the X carriage is micro-vibrating with each step amplifying the stepping sounds with the bearings dancing on the rails.
I have two bearing blocks per rail and there is very minimal slop by hand. It shows .0012 inches of play on my dial indicator, but I’m not sure how much of that is the rails flexing vs how much is the bearings vs how much is the carriage rolling.
Still, removing the motor makes it behave like my X motor, which is what I expect from a stepper.
I have a couple medium grade bearing blocks I’ll try to swap out after I make a new mount to house them and the motor. But this is obviously not a tinyg settings issue.
Thanks.
