Block Detection

Discussion in 'FAQs' started by CN1, Jun 12, 2005.

  1. CN1

    CN1 Active Member

    Any ideas how I can make "block detection" on the cheap? :confused:
  2. seanm

    seanm Member

    .......lets see.... You could put two VERY thin pieces of wire up through the track so they are almost touching eachother and just brushing the axels... when they touch, you would make a light flicker. Course you will really need to tune it so it does not knock the cars off the track.

    Cheap enough?
  3. jim currie

    jim currie Active Member

    how cheep ?
  4. CN1

    CN1 Active Member

    seanm, thanks

    How cheap? I don't understand the question: Cheap means cheap, el cheapo, scrooges, $0.01 etc...
  5. jim currie

    jim currie Active Member

    ok i understand you idea of cheep( to me cheep means less that retail) cant help you.
  6. CN1

    CN1 Active Member

    So unless you spend thounsands of dollars, you cannot have a functional block detection?

    I don't believe this at all
  7. Pitchwife

    Pitchwife Dreamer

  8. CN1

    CN1 Active Member

    Thanks for the links Pitchwife.
  9. Pete

    Pete Member

    I haven't checked on the cost to build them lately, but the Twin-T detection system designed by Linn Westcott in the late 50's is relatively simple, and there have been a few offshoots and improvements over the years. Peter Thorne describes them in one of his books, Easy-to-Build Electronics Projects for Model Railroaders
  10. kf4jqd

    kf4jqd Active Member

    I forgot where I got mine. I have to waite for my computer to be shipped to me. I baught IR senors for $10.00 ea.....maybe I can do a search.

  11. kf4jqd

    kf4jqd Active Member

    I found the link. He makes them per order. He's a Ham Radio Operator too that I have talked with him on the air. They are very simple to use. You can use them with Sunrise and NJ Internation signals. Others too. If you use lamps instead of LED's, you need to install a relay. Very, very, very simple to use. They are small enought to use on Nscale too.

  12. belg

    belg Member

    Andy I attempted three times to open your link and it timed out everytime, maybe its a Mozilla problem I'll have to try with IE later. Pat
  13. kf4jqd

    kf4jqd Active Member

    It works no problem here. Try copy and paste.


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