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Need help designing a clock with a repeating signal
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[QUOTE="Baluncore, post: 6826401, member: 447632"] Welcome to PF. I think you need to keep it simple. 1. A pendulum and an escapement wheel. 2. A 12 tooth bicycle chain pinion on the escapement shaft. 3. Adjust the pendulum length to one pinion tooth per second. 4. A weight hanging on a length of bicycle chain drives the escapement shaft. 5. The signal is triggered when an extra-long roller pin passes over the top of the pinion. The distance between three long pins in the chain programs the period. It all stops when the weight reaches the floor. Also, consider a loop of chain with only one extra-long roller pin. It will regularly pass over the pinion, with a period determined by the number of links in the chain loop. A separate weight would be required to drive the escapement shaft. If more than three signals were not permitted, then the weight would have to be caught after three and a half periods. [/QUOTE]
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