Solar trough water heater motor linkage

  • Thread starter frazelle09
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We are trying to build a solar water heater using a 4' x 10' trough design and are still trying to figure out how to rotate the trough so that it follows the daily sun East-West. We have a 12 volt car window motor and someone else has suggested we use a simple, 3.6 volt electric screwdriver motor. Which motor to use is "another" question.

However we still need to see if what we are building will work. We have a 40" long threaded rod attached to the end of the motor and the motor attached to the frame of the concentrator. The top end of the rod is to be threaded through a bolt, welded to a tie-rod which is bolted to one end of the concentrator. We think that when the motor turns the rod it will rotate the trough through some 110 degrees. Does this seem mechanically reasonable/logical?

A link to the project is http://www.fundacionanisa.org/index...d=35:sustaindevelcategoria&Itemid=43&lang=en".

Any suggestions/comments would be greatly appreciated. Have a great afternoon! :)
 
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