A few incoming updates on stuff I've been doing with tools and around the garage.
First up, is a custom Milwaukee M12 belt sander that I made (3 of them, actually). I've seen a few links to adapter kits to graft a Harbor Freight belt sander (for a 3/8" x 13" belt) to a Milwaukee M12 Fuel 3" cut-off tool. I liked this idea, but I've used 3/8" belts before and generally much prefer the larger 3/4" x 20.5" belt size, which we have air-powered units at work and I use frequently.
I'm not sure who was the originator of the adapter idea, but it seems like a handful of companies make the adapter kit now...
So I eyeballed the larger 3/4" belt sander body next to a M12 3" cut-off tool, and figured there had to be a way to make the bigger tool frame fit on the M12 body.
I first had to remove the backing plate for the guard that comes on the cut-off tool, then I made a turned cylinder to mimic the air-powered belt sander's body, for the sanding frame to mount to and rotate about...
Next I machined a clearance chamfer to the stub base of the driving pulley, to clear the above shown torx screws. In hindsight, I'm not sure this was needed, but it was 'just in case' to make sure the pulley fit without rubbing...
Next I had to turn a pressed-in bushing to reduce the pulley's ID from ~1/2" to ~3/8" to fit on the output shaft of the cut-off tool...