Dustin demonstrates tool sharpening on CCAT's pedal power grinder

The pedal powered grinder uses an exercise bike with a chain driven flywheel. A belt from the flywheel to the grinder and polisher assembly completes the link to convert a person's exertion into work. To build a pedal powered grinder, all that is required is an exercise bike and an armature with bushing and driveshaft that can be picked up at a local hardware store. Hooking these two devices up is the fun part and will require some inventiveness on the part of the builder.

The pedal power sander is currently just a design, although we have built a pedal power table saw of similar design with no difficulties. To build either the table saw or a sander, this design will do the trick.