Delta Bearing U-Joint

I couldn't find a printable U-joint for Deltabot rods that I liked, so I made one. The bearings give the joint high load capacity with low friction and zero wear.

Yes, it could be much smaller with special bearings (like the Kossel Pro U-joints) but 623zz is a common and cheap size that fits M3 hardware.

The rod pocket is sized for TriDPrinting.com 5.8mm rods, but feel free to modify the size to fit whatever you want.

I will be posting up-rev'd files for overall size and range of motion as I iterate the design. No promises that different revs work together.