Over at the mightyOhm, Jeff Keyzer has a guest blogger, his friend Tony. Tony’s first project posted is (part 1) of this awesome diamond-bladed precision chop saw he built with parts from hard drives. The motor, pivot bearing, and motor driver are all from old drives. The blade is a surplus wafer-dicing blade, 300µm thick!

Tony’s Diamond Chop Saw (Part 1)