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Hey Dave-
Funny, Ross just built some buffers/bumper sensors 2 nights ago for the big
show in Philly (we are only bringing half of our layout, and ping-ponging the
mainlines). He was planning on testing them this weekend. I’ll have to point
him your efforts! Thanks for sharing!
JOHN
In lugnet.org.ca.rtltoronto, David Koudys wrote:
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Hello all,
I’m currently running a small layout in my basement using an LDCC’ed RCX with
automation provided by an RCX running NQC.
For the NQC program to know when a train has reached the end of the line, I
had to develop a bumper sensor. I remembered seeing some around here
somewhere, but was at a loss to find ‘em last week, so I made my own--
MLCAD instructions--
http://sandysparky.net/gallery/LEGOtouchswitchtrainbuffer
It’s pretty easy on basic parts, and doesn’t require that much finesse to
build it. The train buffer doesn’t seem to bind, and the touch sensor has
enough ‘spring’ to it to push the bumper back out when the train departs. I
have 2 of them on my loop right now and they were flawless for every evening
this past week.
Thought I’d share.
Oh, I didn’t cross post my train vid from rtlT--
small version (8 meg)--
http://sandysparky.net/video/lego/20060619palisadevillasmall.wmv
bigger version version (17 meg)--
http://sandysparky.net/video/lego/20060619palisadevilla.wmv
Yeah, I mentioned John’s name--he’s the 8 wider :)
Dave K
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