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 13:12:09 GMT
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Viewed:
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751 times
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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?
Ed
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Message has 1 Reply:
 | | Re: Remote switching points
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| (...) 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 (URL) lego.gerf.org is not functional yet. I plan on adding a (...) (25 years ago, 27-Aug-99, to lugnet.trains)
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Message is in Reply To:
| | Remote switching points
|
| 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 (...) (25 years ago, 27-Aug-99, to lugnet.trains)
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