Subject:
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Re: Grade Crossing Signal Thingy...
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Newsgroups:
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lugnet.trains
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Date:
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Sat, 18 Dec 2004 04:04:48 GMT
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Viewed:
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2175 times
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In lugnet.trains, Stefan Garcia wrote:
> The RCX is fairly accurate it seems, but the motor drive shafts have a tendency
> to spin down after power is cut.
Try braking. This is from memory so might be all wet... If you just turn power
off, the motor coasts to a stop. But supposedly you can send the motor a speed 0
command, I think, and the motor stops right then, frozen in place. It takes more
power, which might be an issue if you're on battery, but not a lot more. Steve
H. talked about it recently, either in .robotics or in .rtlT, not sure which.
Hope that helps.
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Message is in Reply To:
 | | Re: Grade Crossing Signal Thingy...
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| (...) The way that my design ended up, that isn't an issue. The arm just goes up and down as the wheel/motor rotates. It doesn't go past horizontal or vertical positions (by luck, not design :^) ) (...) There's a weak spot in my signals above the (...) (20 years ago, 18-Dec-04, to lugnet.trains)
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