Stopped after half an hour because a gear axis slipped out of sleeve and then wouldn’t start up again properly. Turned out it’s wound down too much with all this tinkering so had to rewind. Ticking again. Once I get it going for a full spring winding cycle I’ll work on accuracy.
-
-
Rube Goldberg Chindogu idea... attach an arduino meta-control loop that notices if it stops via optical sensor interrupted by the pendulum, and gives the rocker a li'l kick if it does
Show this thread -
-
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.
Show this thread -
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?
Show this thread -
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.
Show this thread -
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
Show this thread -
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 -
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
