Laser Cutter Material Holddown clip for use with circular magnets
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Laser Cutter Material Holddowns. For use with 32mm or smaller circular magnets
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- Creative Commons — Attribution
I have a couple of CO2 lasers and I have been using the magnets (link below, no affiliation) to hold my material down. It was annoying having to move them around because they are VERY strong. I tried adding little handles and that works but I sometimes use 38.1mm lenses and the nozzle was low enough to hit the handles. I also have a 5mm thick fence and the only way to hold down 3mm material was to put the magnet right on the material which caused more waste, nozzle bumps, or marks on the material if the laser somehow skimmed the side of the magnet while cutting.
These holddowns are for 3mm and 5mm material thickness but I have included the step file so feel free to modify them however you like. There is one model that includes a small bridge. I included this because I use an L-shaped piece of 5mm plywood along the left and top of my bed with adhesive tape measures to help with quick and dirty placement. The bridge clears my fence. The nub sticks down more than 2mm so that there is extra downward pressure on the material.
Unrelated, but if anyone is interested as to how I made my little fence, it's super easy. You just cut down a piece of scrap plywood so that it fits the bed and extends far enough outside so that you have enough room to attach it to the bed. Then attach it to the bed outside the cutting area (you have to do this first or you won't end up with a known good 0, if that is necessary). Finally use the laser to cut through the fence along the left and top edges at 0mm. provides a perfect fence that stays out of the way. Anyway, the version with the bridge fits mine.
Use these or any similarly sized magnets.