Just finished the beautiful Crazy Gear Pendulum clock and have it running flawlessly.
I did make one minor change, it is battery orperated. I designed and printed a battery powered weight. I replaced the fish line with a endless loop of 1/8 " ball chain. The weight is powered by a 1000:1 N20 gear motor to operate a small ball chain sprocket with idlers inside the housing. When the weight hits it's lower limit it activates a rack and pinion that tilts a mercury switch. That powers the motor and sends the weight to the top limit where the motor is turned off. I designed a chain sprocket that snapes on to gear 8 (no modifications to that stl file). However, after making a few chain sprockets for gear8 I ended up with a sprocket that was 4.5 inchs in dia. That required that I make a small change to the gear7 ratchet so I could get clearance for the sprocket.
All in all I am very happy with my latest pendulum clock. My daughter saw a photo of it and wants me to make one for her.
Thank you Steve for your beautiful creations and your acute attention to detail.
Leon
Hi Hoppy,
Hope that you are well and still reading this thread.
Just a quick update: All three wind up clocks are still going strong without a battery change.
Are you considering doing the same modification to Steve's SP13 moonphase clock??
If not, would you consider making the ball chain sprocket accessible as anything else but an STL file. I do not have the skills as yet to design one myself in Fusion 360 but might be able to modify the crazy gear unit.
Many thanks
Krys S