"no-wobble" bottom ball-bearing mount for rapman 3.xx

The part is design to allow bent threaded rods move more freely, so that the z-wobble is eliminated. However, the design is not perfected. I think it removes about 60% of the wobble. The design was inspired by chylld's corner set for rapman; in fact, I used the dimensions from the stl file to make this part. Thanks chylld.

I should mention, though, that this design would work better when the corner bed holder uses only one nut. I will be testing this with chylld's corner design.

VIDEO:
ht