Mine is a little elaborate, it is actualy two units... rotissery motor drives one, the other is driven by an old oil skimmer motor, the bottom one was made from the skimmer motor and parts( belts and pulleys" from an old copy machine... I had enough stuff hanging around to make it for a few bucks... I spent about $50 on the top one, complete with timer...
I can bring it to pluug fest ( I think I can get it into my truck, it is on wheels) if there is enough interest..
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