Bullshit Grinder (Fully Printed!) AKA Trammel of Archimedes

prusaprinters

<h3>Bullshit Grinder</h3><p>I had one of these as a kid, it was made of wood, I thought I would try making a printed version. It's an interesting toy that converts linear motion into rotation (or vise versa).</p><p>It is fully printed and the base comes in four versions.</p><p>-Clean</p><p>-Embossed</p><p>-Hexagons</p><p>-BS</p><figure class="media"><oembed url="https://youtu.be/oCaOzV7LCLs"></oembed></figure><h4>Printing instructions</h4><p>The included Gcodes &nbsp;include all the parts you need to assemble 1 grinder.</p><p>I would recommend NOT using mat filaments as the higher frictions from the texture prevents the parts from sliding properly. If you must use mat filament, the trick I found was putting a tiny drop of PTFE oil (or similar) on the shuttles, it runs smooth after that.</p><p>The ones I printed in Glossy filament slid like butter straight away.</p><p>If you slice your own files, 10-15% infill is plenty</p><p>NO supprts</p><p>For 1 grinder, you need:</p><ul><li>1 Base ( choose 1 from the 4 options)</li><li>2 shuttles</li><li>1 shaft</li><li>3 c-clips</li><li>1 pin</li><li>1 knob</li></ul><h4>Assembly</h4><p>Assembly is pretty straight forward, look at the photos for reference.</p><p>You should be done in under a minute and everything should run pretty smooth straight after assembly (and even better after a bit of use).</p><p>just make sure you insert the shuttles in the base before you connect them to the shaft.</p><p><strong>Grind away!!!</strong></p>