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jamesmatheson

jamesmatheson

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I hope you can help, I need a self winding clock to enter a competition, I made a wind up clock charge usb devices, I need to add a self winding clock mechanism to keep the torque constant, if you can...
I hope you can help, I need a self winding clock to enter a competition, I made a wind up clock charge usb devices, I need to add a self winding clock mechanism to keep the torque constant, if you can...