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

prusaprinters

<p>Grimy Grind is a drill bit that connects with a specific manual conical burr coffee grinder to convert it to auto. No need to spend hundreds of bucks on a grinder. This + drill + $20 grinder= good riddance. Booooo expensive grinders.</p> <p> <figure class="media"> <oembed url="https://www.youtube.com/watch?v=_n_tG-FGnO4"></oembed> </figure> </p> <p>The specific grinder this bit is for: <a href="https://amzn.com/B013R3Q7B2?tag=thingiverse09-20">https://amzn.com/B013R3Q7B2</a></p> <p>There are two files. The consumable end should be printed with a high infill percentage(50-60%) and a thick shell. Shell thickness is important because it will keep the actual contact points from stripping. I used 3.2mm and so far so good. The consumable end will eventually strip no matter what, hence consumable and easily replaceable.</p> <p>The main bit should be printed on its side, otherwise the sheering forces will be moving with the layer's plane which will basically tear the bit in half mid grind.</p> <p>Uses M3(3mm) hardware. Nuts are M3 .5. Im using 12 mm length because thats what I had lying around.</p> <p>The nuts are countersunk with a soldering iron. You can check out my process here(very basic): <a href="https://www.youtube.com/watch?v=6nPVWPWAP7g">https://www.youtube.com/watch?v=6nPVWPWAP7g</a></p> Category: Kitchen & Dining