 | | Re: Grade Crossing Signal Thingy...
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(...) 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 (...) (20 years ago, 18-Dec-04, to lugnet.trains)
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| | 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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| | Re: Grade Crossing Signal Thingy...
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(...) Easiest way is to have a stop of some kind at both extremeties of movement, and introduce some kind of slip into the drive mechanism, like rubber bands or a slip clutch (URL) each cycle runs the motor longer than it needs, and the clutch slips (...) (20 years ago, 17-Dec-04, to lugnet.trains)
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| | Re: Pinguim: Some very interesting techniques
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(...) I was looking at this gallery today too and was very impressed. Make yourself known! Tim (20 years ago, 17-Dec-04, to lugnet.trains)
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| | Re: Discussion of Train Table Sizes
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(...) (snip) (...) Thanks Larry. I happen to think we are working too hard but for most of us, the challenge of building something new and interesting was just as much fun as presenting and exhibiting. My preference is now for a more permanent build (...) (20 years ago, 17-Dec-04, to lugnet.trains.org)
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