Inspired by a push drill and bevel gear assembly i saw on thingiverse. I wondered if i could make a lightweight hand-cranked version of my vintage hand drill. The result is a small hobby drill which takes 2mm to 6mm bits. Smooth running because it uses bearings and the tolerances are fine. this is a tough little drill.
2x M3 25mm bolts, washers & nylock nuts.
6x 14mm x 5mm bearings (inner 8mm).
Main body should be at least 50% infill, and all pins, spindles, screws, gears and chuck parts need to be 100%. The handles 20%.
Support used on both spindles and main body.
PLA prefered as its easy to lubricate with 3in1 oil or silicon grease.
ABS can be greased with "Super Lube" silicon grease only, else it disintegrates.
thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/gRHkKDhOVa6
part number followed by x number of pieces required. Screenshot shows layout and bearing and pin locations..