 | | Re: stop when it isn't fun anymore —Rob Stehlik
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| | | (...) I know, I know. I really don't see the point in this though. (...) Sure, and I did. But there is nothing terribly interesting about the mechanics of a connect four robot anyway. I had a wild idea to make a rotary arm like Iain's viper to scan (...) (21 years ago, 2-Jan-04, to lugnet.org.ca.rtltoronto)
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| | | | | Re: stop when it isn't fun anymore —Iain Hendry
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| | | | | (...) like (...) to (...) Lego. I didn't have the heart to tell anyone that the reason our AS 206 SP machine has a 3:2 ratio is beacuse of the 24:16 tooth gears used on the original LEGO model. I never did make a LEGO model of the Side Entry (...) (21 years ago, 2-Jan-04, to lugnet.org.ca.rtltoronto)
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| | | | | | | Re: stop when it isn't fun anymore —Michael Purvis
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| | | | | | | (...) Hmm... What if you did it with a 40 and 20? The spacing would be... wierd... 3 1/4 studs or something? You'd have to do it vertically, I guess, to get half of a half. (21 years ago, 2-Jan-04, to lugnet.org.ca.rtltoronto)
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| | | | | | | | | Re: stop when it isn't fun anymore —Iain Hendry
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| | | | | | | | (...) wierd... 40 and 20 teeth toothed pullies are the same ratio as we use in real life too :) (...) half (...) Sadly I don't think you can run a chain over the 20 tooth gears, if they're the ones I'm thinking of. :( Also, you can't mount them and (...) (21 years ago, 2-Jan-04, to lugnet.org.ca.rtltoronto)
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| | | | | | | | | | Re: stop when it isn't fun anymore —Ross Crawford
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| | | | | | | | (...) Works well with 3 bricks vertical offset, 1 stud horizontal. There is also 12 + 24, but that suffers from a similar problem. The best I can come up with is 1 brick vertical, 2 studs horizontal, but there's a little too much play. (...) No, (...) (21 years ago, 2-Jan-04, to lugnet.org.ca.rtltoronto)
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| | | | | | | | | | Re: stop when it isn't fun anymore —Michael Purvis
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| | | | | | | | (...) I noticed that. There's also this, which is a little snug, but if you're not a purist: (URL) (...) Nifty... hadn't thought of the old-school bevel gears. (21 years ago, 3-Jan-04, to lugnet.org.ca.rtltoronto, FTX)
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| | | | | | | Re: stop when it isn't fun anymore —Rob Stehlik
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| | | | | | (...) :) (...) I have used this combo in a planetary gearset to produce straight line motion. Remember the video clip I sent you? It works, and the Lego geometry is perfect, but as you said the backlash is pretty high. (...) Well, it was your (...) (21 years ago, 3-Jan-04, to lugnet.org.ca.rtltoronto)
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| | | | | | | | Re: stop when it isn't fun anymore —Iain Hendry
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| | | | | | (...) motion. (...) perfect, (...) I remember it, yeah! On that application it worked perfectly since the crank was so small. But for a 16 stud long beam I don't think it'd work well at all. :( (...) the (...) If you mean like, for having a dish or (...) (21 years ago, 4-Jan-04, to lugnet.org.ca.rtltoronto)
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| | | | | Re: stop when it isn't fun anymore —Rob Stehlik
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| | | | (...) Oh but there is... Remember the old style differential? I don't have one, but it defenitely has 28 teeth. Perfect for getting a 2:1 ratio with a turntable. I doubt the chain will fit over the crown teeth, but I might have to try. Otherwise, (...) (21 years ago, 3-Jan-04, to lugnet.org.ca.rtltoronto)
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