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Subject: 
Re: Reversing Loop without Insulated Tracks
Newsgroups: 
lugnet.trains
Date: 
Tue, 10 Aug 2004 23:29:38 GMT
Viewed: 
1471 times
  
In lugnet.trains, Martin Legault wrote:
   In lugnet.trains, Larry Pieniazek wrote:
   In lugnet.trains, Ville Tuominen wrote:
   Hello,

this is my first post to Lugnet.

Hi and welcome! (I have to ask, out of curiousity and nothing else, what’s up with the transposition on your name vs. posting name though, there has to be a story there.. I noticed it when I approved your posting setup recently)
  
Maybe this is common knowledge in Lego train community, but I have never seen mentioned that points can be used as insulated tracks. Here is an example of reversing loop with standard Lego parts:

http://www.brickshelf.com/cgi-bin/gallery.cgi?i=864873

You don’t need to break your tracks for reversing loop project and this loop type takes only one of your straight tracks which are often needed elsewhere.

Doesn’t this have the possible flaw that if you set both turnouts to route in the loop direction that you could still get a short?

Hello,

interesting design and quite simple, but like Larry pointed out, no matter what is the position of “A”, if you set “B” to turn, you get a short. Leave “B” to strait amd when a train come to “B”, it will push the alingment to pass and stop after the motor cross.

That, as I see it, is the idea. The point B is always set straight. There may be momentary short(s) when the motor pushes it to curve to pass, but once it is past and stops, switching A then supplies it with current, now in the opposite direction, thus the train continues out of the loop.

You have to be careful that the train always enters with point A straight though :) And you also have to make sure there is enough length between A and B to allow for trains with multiple motors.

ROSCO



Message has 1 Reply:
  Re: Reversing Loop without Insulated Tracks
 
(...) Note that these deliberate, if momentary, shorts may *possibly* have a long term negative effect on your controllers. This would probably not work well with regular Model Railroad gear, but then it's not designed to take the abuse that kids (...) (20 years ago, 11-Aug-04, to lugnet.trains, FTX)

Message is in Reply To:
  Re: Reversing Loop without Insulated Tracks
 
(...) Hello, interesting design and quite simple, but like Larry pointed out, no matter what is the position of "A", if you set "B" to turn, you get a short. Leave "B" to strait amd when a train come to "B", it will push the alingment to pass and (...) (20 years ago, 10-Aug-04, to lugnet.trains, FTX)

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