This short video from [ProShorts 101] shows us how to build a variable speed disc sander from not much more than an old hard drive. We feel that as far as hacks go this one ticks all the boxes. It ...

This short video from [ProShorts 101] shows us how to build a variable speed disc sander from not much more than an old hard drive. We feel that as far as hacks go this one ticks all the boxes.

Regardless, ProShorts 101 shows off the variable speed sander in action, sharpening scalpel blades, a flathead screwdriver, and what looks like a rusty old chisel—which now I think about it is a ...