With this drill, we can drill holes in corners that ordinary drills can't reach.
How to do it?
- Print RA-drill.stl, RA-drill-input, RA-drill body-upper, and RA-drill-body-lower.stl.
- Print two copies of body-stopper.stl.
- Apply grease to the spur gear.
- Assemble them.
Video:https://www.youtube.com/watch?v=fDNMgPfJ90Y