Electromagnetic Pendulum Clock
I finished the prototype of an electromagnetic pendulum drive clock. It uses the electronics from a US$4 pendulum drive module. The only change needed was to run it with 3V to adjust for the extra friction from the ratchet pawls. The first overnight run was accurate within about a minute, although it can probably be tuned to within a minute per week.
Electromagnetic Pendulum Clock - YouTube
The design still needs a round of fine tuning and an assembly manual before posting to MyMiniFactory. Hopefully, it will be ready in January 2022.
Steve
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@Steve Thanks Steve for your answer and patience, yes the problem should be in the ratchet which is unbalanced, but it is not easy to keep it balanced by tightening the 2 screws on it ...., first step tomorrow cutting a piece of 1,5 mm wire and I remake the ratchet shaft taking care not to over tighten the screws and tighten them in a balanced way. Then I reassemble everything and I try, if it still has the defect then I reprint the second hand, but the one I mounted I printed it at 14 perimeters, I ask you a question, if the hand I mold it at 14 perimeters, how much I put the filling on Prusa slicer?. a thousand thanks.