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@wmsheep, get over your bad self, it's our fingers we will lose them if....... Oh wait. Perhaps your right :)

Truthfully I liked the op's design but safety was the first thing I thought of and...

I am not sure I will reproduce your idea 100% but I have a few idea's using your root design. Thanks for the idea. I think I can make a smaller version like this but using small DC motors designed...