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Discussion Starter · #3 ·
I think most clock hand gears will move the hands in either direction (CW or CCW). The type of clock will drive what you need to do. If it's an older mechanism, you should be able to remove part of the movement and attach a small gearmotor (~4 RPM or to your taste) to the drive shaft. If it's a newer model with an electric movement, you could attach the motor to the thumbwheel that's used for adjusting the time.
actually I already got it to back a minute a second. . .

https://www.youtube.com/watch?v=CW8jmPclJGg

but I desperately want an effect like this:

https://www.youtube.com/watch?v=lnHhLs9djRw
 

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Discussion Starter · #5 ·
I did this with a cheapo clock mechanism available at craft stores or thrift stores in used clocks.
You need two things to make it work:
1. a motor that turns the right direction.
2. a drive mech to attach the motor shaft to the time adjustment wheel on the clock mech.

P.S. I wore out the clock mech in a season. Need to make another one.
Pete

here is previous a post:
http://www.halloweenforum.com/halloween-props/126869-grandfather-clock-prop.html?highlight=
that's exactly what I need. how did you do that?
 
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