dansworkshop

This is a sand muller I made from the bottom 1/3 of a 55 gallon barrel, a maytag washing machine motor, and some other odds and ends.

Using the old dell printer turned to CNC for labeling CDs with a sharpie marker

Six years ago, I modified a cheap "airdyne" exercise bike to adapt a car alternator. This proved to be difficult, and I struggled with various automatic circuits that didn't work well. Here I'm simplifying, to a manually operated energizing switch. The problem is that a car alternator requires a battery to *start* generating power, but will drain the battery if left connected. So in a "batteryless" configuration, you need to temporarily switch the alternator between a small excitation battery and the load. See the original 2009 project here: http://www.dansworkshop.com/exercise-bike-generator/