Ever want a secret room or a hidden doorway as a kid? Who didn’t, right? Now you can build your own like this motorized secret entrance which was the centerpiece of a costume theme party for Halloween.
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The trick is to design a sturdy structure and complement it with effects so that it gives the impression of a real room. Insulation tape, foam board, soft lighting, and a faux paintjob complete the effect. A 12 volt motor moves salvaged wheelchair wheels opens the door slowly. The motorized unit is installed on the door frame and a double pole, double throw (DPDT) switch on the outside to open and close the door.