M12 Nut Spinner

prusaprinters

<p>This is a fidget spinner that achieves the majority of its rotating mass from M12 nuts.</p> <p>Not only do M12 nuts weigh more than other bearings, they are smaller and can be mounted creatively - this was my attempt at that.</p> <p>Some simple maths:</p> <p>Standard tri spinner: 12g bearing*3 = 36g rotating mass</p> <p>This spinner: 16g nut*6 = 96g rotating mass</p> <p>There is a little more to it than that, but that is beyond me!</p> <h3>Print Settings</h3> <p><strong>Printer:</strong></p> <p>XYZ Da Vinci Mini W</p> <p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>Doesn't Matter</p></div> <p><strong>Supports:</strong></p> <p>No</p> <p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0.2mm Layer height</p></div> <p><strong>Infill:</strong></p> <p>20%</p> <p><br/> <p class="detail-setting notes"><strong>Notes: </strong></p> </p><div><p>Created in onshape - this is one of my first models!<br/> I thought using bearing as weights for a fidget spinner was expensive and not heavy enough. Enter the M12 nut - these bad boys are cheap, heavy and really uniform in weight. This means even cheap bearings spin for minutes with a full payload. The spinner can be lightened by removing a set of nuts. <p>My bearings weighed ~12g each, these nuts are 16g each and there are 6 of them!</p> <p>The nuts are quite tight to thread on intentionally - this will obviously depend on nozzle width and the precision of your printer. If they are a touch loose, you can easily lock two nuts together.</p> <p>Please comment with thoughts and improvements to the design.</p> <p>Link to file: <a href="https://cad.onshape.com/documents/5ca86b800e5179beb8603669/w/347d82ae95c010c689c0dd67/e/7f54f0ada856c21e8dcbbb3a">https://cad.onshape.com/documents/5ca86b800e5179beb8603669/w/347d82ae95c010c689c0dd67/e/7f54f0ada856c21e8dcbbb3a</a></p> <h3>Post-Printing</h3> <p><strong>Step 1</strong></p> <p>Print the file</p> <p><strong>Step 2</strong></p> <p>Thread your 3-6 M12 nuts onto the arms, they will be very tight (you do not want these falling off at speed!).</p> <p><strong>Step 3</strong></p> <p>Press your bearing in - this should also be very tight, but friction fit. Freezing the bearing may help it fit, but be careful not to burn yourself.</p> <p><strong>Step 4</strong></p> <p>Spin, spin, spin!</p> <h3>How I Designed This</h3> <p>I am a complete CAD novice, I followed the Onshape tutorials and had a crack at something a little different. There were some features I wanted to add, but I haven't figured this out yet!</p> </p></div></p></p> Category: Toys & Games