Print a Sacrificial Magnet Square

Here’s your quick and dirty hack for the day. Sometimes you just need something that will work for what you’re trying to do, and you don’t want to go through the motions of doing what’s prescribed. When this happens, it’s a cheap, disposable tool that fits the bill. No, we’re not talking about Harbor Freight—we mean those need-driven tools you make yourself that get the job done without fuss. If you’re really lucky, you can use them a couple of times before they break.

This is one of those tools. [Jake’s Workshop] wanted to be able to quickly tack a corner weld without getting out the clamps, so he thought, why not print some magnet squares? [Jake] hollowed out the triangle to save filament, but this also gives it a nice advantage over store-bought magnet squares: instead of grasping and pulling it off,  you can hook your finger through it and then hang it on the pegboard for next time.

[Jake] got lucky with the pocket sizes and was able to press fit the magnets in place, but it would be worth it to add a drop of CA glue to help with strain. He seems to have forgotten to upload the files for his various styles, but a hollow triangle with chamfers and magnet pockets should be easy enough to replicate in OpenSCAD or  SolidWorks, which he used in the video below.

There’s something special about a cheap tool you make yourself. Even though you know it won’t last forever, it’s just more meaningful than some cheap, rage-inducing tchotchke or assemblage from a place where the air is ~85% offgasses. We love necessity-driven self-built tools around here so much that we gave them their own Hacklet.

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