Grip Testing Update

Based on my testing with this printed tool it seems like the 21mm OD 6702 (61702) bearing can bring some meaningful increase in grip at a lower rolling resistance compared to the 623. Especially when paired with a cheap HGX gear and not the full-metal genuine LGX one. See the pic for the differences (LGX, HGX, NF Cannon).

The 15mm ID bearing will be harder to integrate than simply putting a M3 screw through it like with the 623, but we'll figure it out. Worst case the SLM part count goes up by 1.