Magnetic Base (adjustable strength)

prusaprinters

<p>This is a simple magnetic base with a removable top plate. The knob adjusts the position of the magnet carrier which turns the strength of the magnet's holding power up or down.<br/> Total strength will depend on the class of magnets and thickness and iron content of the surface.</p> <p>Currently the only top plate is for holding a 1/4" threaded rivet. It's purpose is to hold 1/4" gear like camera mounts and articulating arms.</p> <p>The Fusion file is included so you can make any mount needed. To make a mount, you just turn off the top plate component and start from there.</p> <p>The bottom of the base has a slot for a rubber ring that's printed in TPU/TPE. It will prevent the base from sliding down smooth metal surfaces. It can also prevent damage to a surface. Alternatively you can fill this channel with something like silicone, which will serve the same purpose. It needs to stick out a bit though. This ring should be printed on a very smooth surface to be the most effective. I printed it on some kapton tape, which gave me a mirror finish on the bottom.</p> <p>Pictures should make it clear how everything is assembled.<br/> Knob has a capped hole to aid with bridging. It's cut away after printing.</p> <p>Worklight can be found <a href="https://www.prusaprinters.org/prints/10929-70w-7000lm-dimmable-led-worklight">Here</a></p> <p><h3>What you need</h3><br/> eBay searches are copied and pasted. Some are advanced searches which look a little strange.<br/> <br/><br/> <br/></p> <p><strong>12x 20x10x5mm N52 Neodymium Magnets</strong> with countersunk holes for M4 Screws. Technically only the last magnet needs to have a countersunk hole.</p> <p>eBay Search: (n52,n50) 20x10x5 hole</p> <p><strong>1x 626 Bearing.</strong> It's purpose is to prevent the knob from binding, and to center the carrier. It's 19mm in diameter, 6mm thick, and a 6mm hole.</p> <p>eBay Search: 626 bearing</p> <p><strong>1x 1/4" Threaded Rivet (optional)</strong> - For camera gear. It's 15mm long. Can be steel or aluminum. This should be glued in to prevent it from rotating.</p> <p>eBay Search: 1/4" Thread (Rivet,Rivnut)</p> <p><strong>Screws:</strong></p> <p>4x 20mm M4 Countersunk - For the magnets.<br/> 4x 40mm M4 (Round) - For the top plate.<br/> 1x 35mm M6 (Hex) - For the magnet carrier. Goes in the knob.<br/> 1x M6 Nut - For the magnet carrier.</p>