Robotics : 22153


Robotics / 22153	22152 \| 22154

Subject:	automated train drawbridge
Newsgroups:	lugnet.announce.moc, lugnet.trains, lugnet.robotics
Followup-To:	lugnet.trains
Date:	Thu, 29 Jan 2004 21:04:57 GMT
Highlighted:	! (details)
Viewed:	292 times

Here is my latest. It is a fully automated train bridge. (Sorry the photos are not the best. It is hard to take pictures in my basement.) It is fully automated. Meaning we will be able to run the rcx and the bridge will happen periodically during a train show without human intervention. The rcx will raise the bridge once about every 20 minutes. It will wait until trains are not on the bridge. Any trains that are coming to the bridge when it is up will be stopped. It contains 8 homebrew light sensors. http://www.brickshelf.com/cgi-bin/gallery.cgi?i=641525 Here is the bridge when it is down. (there is another bridge behind it) http://www.brickshelf.com/cgi-bin/gallery.cgi?i=641515 And Up http://www.brickshelf.com/cgi-bin/gallery.cgi?i=641523 Other Pictures http://www.brickshelf.com/cgi-bin/gallery.cgi?f=70673

Message has 3 Replies:

		Re: automated train drawbridge
(...) Beautiful! :-) I love it. It's just as I'd like to have built mine, months ago. How do trains behave in it? (does it hold with heavy trains passing through?) Is there any chance of seeing the lifting mechanism in detail? I'd like to know if (...) (21 years ago, 29-Jan-04, to lugnet.trains)

		Re: automated train drawbridge
(...) (no pun intended). Do you have counter-weights hidden under the piers? And we need to see some pictures of the lifting mechanism! How much does it sag when a train crosses the bridge? I'm guessing the magnets are to help keep the two (...) (21 years ago, 29-Jan-04, to lugnet.trains)

		Re: automated train drawbridge
Great job! Now I'm going to have to ask my parents to let me get some more track for my train. Can you post some more details about it like how you were able to distinguish between the 8 light sensors and what the yellow box is next to the rcx and (...) (21 years ago, 29-Jan-04, to lugnet.robotics)

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