I needed to have my projector drop 24" from the ceiling to clear a ceiling fan in my den/home theater. Most of the ones I have seen are boxes that drop out of the ceiling. I came up with a very simple solution using a linear actuator, modified Da-Lite universal projector mount, 12vDC supply and a remote controlled double relays to reverse the voltage to the actuator.
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2/5/13 at 2:10pm