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 | | Worm gear... whence the length?
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| OK, after struggling with precision in a lead-screw assembly for quite some time now, I've just got to ask because I don't know the answer and it's bothering me... Can ANYBODY give me a possible good reason for the length of the worm gear? why oh (...) (16 years ago, 19-Jul-08, to lugnet.technic)
| | | | | Great Ball Contraption at BrickFair
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| (URL) Yes there will be a Great Ball Contraption at BrickFair. Yes it will be grand, yes it will be noisy, yes it will be fun, and yes I need you to bring a module (or two)! Don't know what a GBC is? Start here at Steve Hassenplug's (URL) (...) (16 years ago, 16-Jul-08, to lugnet.events, lugnet.technic, FTX) !
| | | | | Re: Motor problem
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| Philo and Gereon, Thanks so much for your quick replies. I've rebuilt it, and it seems that a larger batter box was the solution. My helicopter should be ready to fly well in advance fo BrickFair, as planned! thanks! Magnus (16 years ago, 16-Jul-08, to lugnet.technic)
| | | | | Re: Motor problem
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| (...) Hi Magnus, a variety of reasons comes to mind: - Are you using a rechargeable battery? The 9V types of rechargeables sometimes lose power too quickly for such a rather demanding application. - If you let the motor run freely (i.e. without any (...) (16 years ago, 14-Jul-08, to lugnet.technic)
| | | | | Re: Motor problem
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| Hello Magnus, (...) From the symptoms you describe I would say you need "a bigger battery box". Battery boxes (and motors too) contain a current limiting device. It is a resistor whose value increase (a lot) with temperature. When you start your (...) (16 years ago, 14-Jul-08, to lugnet.technic)
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