Smooth turning spool holder

prusaprinters

<p>This is a remix whereby the mount is changed to that popular mount (here: <a href="https://www.thingiverse.com/thing:3020026">https://www.thingiverse.com/thing:3020026</a>).</p> <p>NOTE: This is a remix from <a href="https://www.thingiverse.com/thing:4649148">https://www.thingiverse.com/thing:4649148</a> (edit tool does not let me attribute correctly!)</p> <p>Hence, a drop-in-replacement from a wobbly spool that occasionally causes unwinding problems to one that rolls really smooth because it is kept on-centre.</p> <p>Also, I've added a modification for a 5mmx9mm bearing (I didn't have the other one handy).</p> <p>The FreeCAD source file is included for the centre hub and is parameterized so you may changes as needed.</p> <p>And finally, for the outer nut, note that I did scale in the X and Y direction by 3% to make a nice loose spinning fitting (2% may work better, a little less loose but the 3% still locks on a spool just fine).</p> <p>Also, hardware wise, I'm using two 5mm ID by 9 mm OD by 3mm deep side by side bearings (these are the extra ones that come from a Titan Aero kit) and a 3mm x 50 mm screw (as shown in picture) that was salvaged from an HP printer. Yeah, all about saving hardware and fully dissembling old appliances for recycling etc. these days. The screw is a little long but it adds nice rigidity and support to the hub which is otherwise a super flimsy bit of plastic.</p> <p>In regards to assembly, all parts are shown less the two bearings. You could optionally glue in retaining ring described in original make but I didn't find it necessary.</p> <h3> Print Settings</h3> <p><strong>Rafts:</strong></p> <p>No</p> <p><p class="detail-setting supports"><strong>Supports: </strong> <div><p>No</p></div><strong>Resolution:</strong></p> <p>200</p> <p><p class="detail-setting infill"><strong>Infill: </strong> <div><p>20</p></div><br/> <strong>Filament:</strong><br/> PolyMaker PLA</p> </p></p> Category: 3D Printer Accessories