Simple Christmas Pyramid

prusaprinters

<ul> <li>another christmas / winter themed design</li> <li>modeled in fusion360</li> <li>inspired by traditional german christmas pyramids (<a href="https://en.wikipedia.org/wiki/Christmas_pyramid">https://en.wikipedia.org/wiki/Christmas\_pyramid</a>)</li> <li>simple, minimalistic approach</li> <li>powered by rising/moving air from a heater / radiator / etc</li> <li>do not use open flames!</li> <li>uses a small magnet and some steel balls as a rotational bearing</li> <li>there are model versions for 13mm steel balls, and 1/2" steel balls ("_inch")</li> <li>the arc base structure consists of 3 parts glued together, make sure to sand the contact surfaces flat to make the assembly easier</li> <li>ther are model versions for D10xH3mm and for D8xH3mm cylindrical magnets</li> <li>you need to print "base" 3 times and one "bladering"</li> <li>model units are [mm]</li> <li><p><a href="https://youtu.be/Eks_HvOsT2U">https://youtu.be/Eks\_HvOsT2U</a><br/> <strong><em>Edit 20171203</em></strong></p> </li> <li><p>after a few weeks, the steel balls creating the rotational joint seem to have flat spots which increase friction and stop the rotation of the bladewheel</p> </li> <li>I added a very small steel ball (one from a 608 skate bearing) in between to decrease magnetic forces and minimize contact area</li> <li>It works better than before and spinns and spinns and spinns</li> <li>might not work for everybody, depends on how strong your magnets are</li> </ul> <h3>Print instructions</h3><h3>Category: Decor Print Settings</h3> <p><strong>Printer Brand:</strong> Prusa</p> <p><strong>Printer:</strong> [Prusa Mk2]</p> <p><strong>Rafts:</strong> No</p> <p><strong>Supports:</strong> No</p> <p><strong>Resolution:</strong> 0.2 for the base, 0.15 for the bladering</p> <p><strong>Infill:</strong> high</p> <p><strong>Notes:</strong></p> <ul> <li>brim recommended for bladering part, due to thin blade structure</li> <li>I had some issues with blade warping during my prints</li> <li>printed in DasFilament PETG</li> </ul>