Hobby sized hand drill.

thingiverse

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 that takes 2mm to 6mm bits. Smooth running because it uses bearings and the tolerances are fine. This is a tough little drill. You'll need: 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 require 20% infill. Support used on both spindles and main body. PLA is preferred as it's easy to lubricate with 3in1 oil or silicon grease. ABS can be greased with "Super Lube" silicon grease only; otherwise, it disintegrates. This thing was made with Tinkercad. Edit it online at https://www.tinkercad.com/things/gRHkKDhOVa6 Print Settings: Printer Brand: RepRap Printer: prusa i3 Rafts: Doesn't Matter Supports: Yes Infill: from 20% to 100% Notes: part number followed by x number of pieces required. A screenshot shows the layout and bearing and pin locations.