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    Re: "No Contact" Homebrew Train Sensor for Mindstorms —Eric Kingsley
   (...) I might just add that while this was a bit over my head it work extremely well and the sensor itself was very small and unobtrusive. It was a non-LEGO solution but I loved it and recommend it. I think with some reworking it may even be (...) (24 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)
   
        Re: "No Contact" Homebrew Train Sensor for Mindstorms —Larry Pieniazek
   (...) Is there a photo that clearly shows the sensor in a fairly tight closeup so that it can be judged how obtrusive/invisible it is? I skimmed through many of the photos posted by you, Dave, and Tim but did not see one, although I may have missed (...) (24 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)
   
        Re: "No Contact" Homebrew Train Sensor for Mindstorms —Eric Joslin
     (...) 1) take a section of straight track. 2) take a light gray 2x4 plate and place it so that it spans the 2-stud gap between two of the ties. 3) imagine a very thin silver piece lying on that. That's it. Most of the people I talked to about it (...) (24 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)
   
        Re: "No Contact" Homebrew Train Sensor for Mindstorms —Eric Kingsley
   (...) I know I didn't get a close up because my camera stinks for close ups. I think Chris may have gotten some but he hasn't uploaded his pic's just yet. If we don't have one now, we are having a meeting in a couple weeks and we will make sure to (...) (24 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics, lugnet.org.us.nelug)
   
        Re: "No Contact" Homebrew Train Sensor for Mindstorms —Chris Phillips
   (...) I just looked through my pictures and I was surprised to find that I don't have any that show the sensor. I will snap a few close-ups tonight... I also like the idea of doing a more formal write-up with pictures, schematics, and part sources. (...) (24 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics, lugnet.org.us.nelug)
   
        Re: "No Contact" Homebrew Train Sensor for Mindstorms —Chris Phillips
   (...) I took a few close-ups of the sensor last night, and uploaded them to BrickShelf. Check out: (URL) first picture is the sensor itself with a few "common" objects nearby for scale. The second picture is my reproduction of the exact setup that (...) (24 years ago, 6-Dec-00, to lugnet.trains, lugnet.robotics, lugnet.org.us.nelug)
   
        Re: "No Contact" Homebrew Train Sensor for Mindstorms —Eric Kingsley
   (...) Chris, I was just wondering if there was a decline in performance in the enclosure as opposed to outside of it. The enclosure looks great! Eric Kingsley The New England LEGO Users Group (URL) (24 years ago, 6-Dec-00, to lugnet.trains, lugnet.robotics, lugnet.org.us.nelug)
   
        Re: "No Contact" Homebrew Train Sensor for Mindstorms —Chris Phillips
   (...) No, there is no apparent decline in the sensitivity of the reed switch when it is encased in LEGO. In fact, the switch that I bought from Radio Shack was originally enclosed in a plastic housing, which I removed to reduce the bulk of the (...) (24 years ago, 7-Dec-00, to lugnet.trains, lugnet.robotics, lugnet.org.us.nelug)
 

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