TIG tungsten grinder for Proxxon
thingiverse
Attachment to Proxxon tools to grind TIG tungstens to a sharp point. Tested with Proxxon Micromot 230/E, but should fit plenty of others. Should also be fairly easy to replace with a Dremel collar if you have one of those. This one clamps onto the collar of the Proxxon tool with an M3 screw + nut. For best fit, drill the holes for the tungsten out with a 2.5mm drill bit. The model is built for a 50mm diamond grinding wheel and 2.4mm tungsten rods, but the SCAD file is easily customisable for different dimensions as well as your preferred point angle.
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