Disc sander build

[Pete O]

I put in a bit of time on the electrickery this afternoon, I put together a system to start the 3-phase motor on single phase power without running through my rotary converter. I want this thing to be portable enough to take it outside, or at least by the door, if I'm going to be making a lot of sawdust. The 3-horsepower motor is way over spec for a 12" sander so I can afford the power loss involved in a static converter. I used bits left over from my RPC build, although I had to fork out for the capacitors and the enclosure.