This Halloween I’d like to make a display of a person sitting in a chair, lifting and lowering its hand every so often. What I’m thinking of is having a motor attached to the ceiling above the display; a wire attached to both a lever on the motor and a hand on the person; and with each revolution, the lever lifts the wire (thus, lifting the hand) and then lowering it (thus, lowering the hand).
Kinda as shown in this drawing. (You’ll have to pardon the questionable artwork.)
My question is, where would I find a motor slow enough to do what I want? I don’t want the motor to run so quickly that the guy looks as if he’s having a seizure, but I do want it fast enough so passers-by can see he’s waving. If I can get this to work, I’ll eventually try something similar with a motor and a coffin lid.