Grimy Grind: Manual Coffee Grinder Bit for Electric Drill/Screwdriver

thingiverse

Grimy Grind is a drill bit that connects seamlessly to a specific manual conical burr coffee grinder, effortlessly converting it to an automatic setup without breaking the bank. No need to spend hundreds of dollars on a pricey grinder. This ingenious combination - drill bit + drill + $20 manual grinder - is the ultimate solution for good riddance to expensive grinders. https://www.youtube.com/watch?v=_n_tG-FGnO4 The specific grinder this bit is specifically designed for: https://amzn.com/B013R3Q7B2 There are two files available. The consumable end should be printed with a high infill percentage (50-60%) and a substantial shell thickness to prevent stripping of the actual contact points. A 3.2mm shell thickness is recommended, which has proven effective so far. The consumable end will eventually wear out despite precautions, hence the term "consumable" and easily replaceable. The main bit should be printed on its side to counteract sheering forces that move with the layer's plane, preventing the bit from tearing in half mid-grind. M3 (3mm) hardware is used for this project. Nuts are M3 .5, and 12 mm length is recommended due to availability of materials. The nuts are countersunk using a soldering iron. For a step-by-step guide on this process, check out the video here: https://www.youtube.com/watch?v=6nPVWPWAP7g