Magnetic hold-down for laser cutters

prusaprinters

<p>This is a hold-down meant to enclose and protect a standard 30x3mm circular rare earth magnet, and can be used to hold down small/thin/lightweight/flexible materials inside of a laser cutter like the Glowforge that has a fan strong enough to blow them around. The edges have overhangs meant to hold 3mm and 6mm material pinched from the side (it usually takes at least 4 to hold something firmly). They are designed to be short enough to fit under the 1/2" clearance of the Glowforge's carriage.</p><p>If you need to use different sized magnets, feel free check out the <a href="https://cad.onshape.com/documents/9e6b5900c3c08d1fcd6c398b/w/9062a256bb6bdc9c6e0d4a07/e/1c16636bbde728f838fedac2">Onshape CAD source</a> and make a copy for yourself.</p><p>I have included several formats of the 2d file used to laser cut the wood "lid" (in case you want to etch a design on it), along with a 3d printable STL file for those who don't have a laser cutter (in case you find some other use for these hold-downs).</p><p>You can get appropriate magnets from amazon, aliexpress, etc. The stronger the better (N52 work really well).</p><p>This design is heavily influenced by <a href="https://community.glowforge.com/t/3d-printed-neodymium-magnet-material-hold-down/28003">pubultrastar's design posted to the Glowforge community forum</a>, though I had a different size magnet on hand and decided to make this design from scratch.</p><h3>Post-Printing</h3><p><strong>Assembly</strong></p><p>&nbsp;</p><ul><li>Press your magnet into the base</li><li>Glue on the top</li></ul><p>&nbsp;</p>