Crayola compatible marker cap replacement

prusaprinters

<p>My first project to learn Fusion 360. Got it right after 3 printings.</p> <h3> Print Settings</h3> <p><strong>Printer Brand:</strong></p> <p>Creality</p> <p><p class="detail-setting printer"><strong>Printer: </strong> <div><p>Ender 3</p></div><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>0.2</p> <p><p class="detail-setting infill"><strong>Infill: </strong> <div><p>100%</p></div><br/> <strong>Filament:</strong><br/> [</p> <h3> Labists PLA ](http://www.amazon.com/s?url=search-alias&amp;field-keywords=Labists+PLA&amp;tag=thingiverse09-20) White <br/> <p class="detail-setting notes"><strong>Notes: </strong> </p><div><p>Print as in STL file. No supports needed. Set z-seam alignment to Random if beauty is desired.</p></div> How I Designed This</h3> <p>I used calipers to measure the dimensions of a marker and cap. I modeled the marker in fusion 360 first, then used circles and extrude to model the cap. An exact duplicate of Crayola caps is difficult to 3d print, so I used only 45 degree angles to revolve a line into a cone shape inside the cap.</p> <p>The snapping and locking is caused by tiny tabs inside the lid and they were difficult to get right since I could hardly measure them, and they are almost below the tolerance of a 3d printer. I had to experiment for this. They are 4 tiny ovals that stick out on the inside of the cap. They can be controlled by a parameter in the fusion file.</p> <p>I noticed that you could put the cap on backwards and it would not lock into place, so I added a top platform to prevent this, that still allows you to put them onto the reverse end of the marker.</p> </p></p></p> Category: Art Tools