Well buickanddeere I just built the fifth one I ever have done this last week. I have used the original for over thirty years running a lathe and milling machine. Each of my sons and my brother now have ones we built.
I use a used three phase motor and old single phase motor we had left off of a silo unloader. I buy the couplers off of Grainger. I put a six inch pulley between the two shaft couplers. I them weld the whole assembly together. I then just bolt the motors on a board with the home made coupler/pulley hooking the motors together. Wire it up using simple blade type switch box.
To use them you just spin the pulley with the bottom of your shoe and turn the switch on. You are good to go.
Total cost was less than $75. The others cost me even less than that. So I am guessing that the $275 dollars saved would buy all of the lost electric I am losing over the inverter type for the next fifty years or so.
I know you purest out there just go crazy when we talk about a rotary converter but they work and are cheap. You have to remember that most of us don't need three phase for very long. Mine might set for weeks at a time and never be used. So when is the energy cost ever going to be an amount to worry about??
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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