I got the koyo encoder, wired it up and installed it. Works great. I also installed a new belt on the z axis. I used a 240L100 which is the same as what came off. It works but the tightening bolts on the servo are all the way at the end of their slots.


I replaced the x axis brushes with this which is a 482 H76 from Helwig Carbon. Works great and came pre-curved on the end of the brush.


The Z axis home switch is broken. Before I replace it I'm wondering what kind of precision (repeatibility) I can expect from this type of roller switch? The axis has nice smooth ramps that engage the roller. Datasheet

After I resolve that home switch I think I just need to tune the servos.