DIY Surface Grinder

All painted, blued, and assembled. The scrap steel came from exercise machines and mounts for a staircase chair lift. The slide is aluminum from a telecom rack and a pair of server drawer slides. The “magnetic chuck” is a door magnetic lock and the contact wheel was an eBay purchase ($75). The whole thing is driven with a dc motor from a treadmill I found at the dump.

All painted, blued, and assembled. The scrap steel came from exercise machines and mounts for a staircase chair lift. The slide is aluminum from a telecom rack and a pair of server drawer slides. The “magnetic chuck” is a door magnetic lock and the contact wheel was an eBay purchase ($75). The whole thing is driven with a dc motor from a treadmill I found at the dump.