Subject:
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Re: Remote switching points
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Newsgroups:
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lugnet.trains
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Date:
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Fri, 27 Aug 1999 22:54:05 GMT
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Viewed:
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712 times
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On Fri, Aug 27, 1999 at 01:12:09PM +0000, Ed McGlynn wrote:
> In lugnet.trains, Christian Holtje writes:
> > Has anyone tried to automate a point by directly laying a worm (screw)
> > gear on the grey plastic (removing the yellow switch handle)? It seems
> > that that'd work well.
> >
> > I suppose that you'd have to worry about stopping, but if they are
> > switched via a manual switch remotely, just don't grind the legos!
>
> *snip*
>
> Christian -
>
> You're on the right track (pun) here...my best results for a remotely automated
> point were to implement a system similar to what you described. I used a 1x6?
> black technic linking plate to do this - that's the kind with rounded ends and
> the stud sized holes at each end:
> ______________________
> / \
> | [] O O O O [] |
> \______________________/
>
> (wow - that's kinda bad!)
>
> Anyway, slip one end over the sliding grey pip that the yellow togle switch
> piece normally forces back and forth in the switch housing, and attach a rack
> gear over the top of the last four studs. Worm gears stink in this
> application, so I used the small 8? tooth gear directly attached to the output
> axle of the new-style technic internally geared motor. This gives a direct
> drive rack and pinion effect that can't grind the LEGO pieces, and the motor
> stalls without consequence if you try and overtourque it. Put a solid housing
> around this whole unit, and that'll keep any motor torque from pulling apart
> your rack system. I use an RCX to control mine, since that can send an
> automated pulse to the motor, and it works like a charm.
>
> Maybe I could post some pics if there's interest or further questions?
Pictures of some sort would help. I think it should be a web page. If
you send me the pieces (pics, and the above text, maybe the rcx proggie),
I'll put together a page for it on http://lego.gerf.org/
Note, lego.gerf.org is not functional yet. I plan on adding a train
faqomatic and such, but the review faqomatic isn't working yet :( I will
work on them Sunday, if I get up. :)
Ciao!
--
A hacker does for love what others would not do for money.
The Doctor What: Guru to the Gods http://docwhat.gerf.org/
docwhat@gerf.org (finger docwhat@gerf.org for PGP key)
KF6VNC
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Message is in Reply To:
 | | Re: Remote switching points
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| (...) *snip* Christian - You're on the right track (pun) here...my best results for a remotely automated point were to implement a system similar to what you described. I used a 1x6? black technic linking plate to do this - that's the kind with (...) (25 years ago, 27-Aug-99, to lugnet.trains)
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