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Re: not robotics, but help would be appreciated
If yoy run 1 common wire to each of the three switches then it will work. The only problem is that you must always turn off from the same switch. If you turn a 2nd switch on so that 2 are in the on position then you must make sure to turn both off.
Another way to do it is with a switch box that is connected to the three switches. A push on/push off button would work to trigger the switch box. I have heard about them but not sure where to purchase. Your 110V goes into the switch box and out to the lights, never to the switches.
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we grow old because we stop playing. 
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