What’s really clever is that the contact forces generated by a 1s pendulum would be too weak to directly compete with a powerful mainspring. But the ~ 2 orders of magnitude gear reduction creates enough mechanical advantage that the 1s pendulum can regulate it
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Anyone who gets this kit built and ticking smoothly on first attempt is some sort of mechanical genius. I’ve gone: 10s, 30s, 55s, 5 minutes, 25 minutes, 55 minutes, 4.5 hours, and now back to 20-30 min range. I suspect it’s the spring force wind-down.
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Yup. Rewound to full tightness and it’s going steadily again. I may be down in the noise zone of friction. It’s not a specific sticking point. To test this, I’d have to note all gear positions at each stall. Should be uniform random?
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I’ll measure this, but after first stall at 4:30, with each gentle impulse on rocker it went for a shorter interval each time. By the time it was ~1 minute, strength of initial impulse was determining the duration so pendulum was driving, not spring.
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I’m sciencing the shit out of this problem that Huygens cracked in 1658
Bringing up the rear of the scientific revolution like a boss.pic.twitter.com/njIIgjGPrP
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Looks like the spring is maybe not actually designed for 24h
Well let’s see how long I can get it to run, and how much energy is left in the spring when it runs out.
I’m guessing 5-6h with my slightly shoddy assembly, maybe 10-12 if perfectly assembled.https://twitter.com/Knipps/status/1306438464175403008 …Show this thread -
New record: 4:59....



Damn thing couldn’t scrape through to 5 huh
I’m gonna call this done. Looks like this is actually close to the spring limit. Probably only has another hour of juice left tops, if I keep rejogging the rockerShow this thread -
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