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Subject: 
Re: Another Motorized Switch Design :-)
Newsgroups: 
lugnet.trains
Date: 
Mon, 15 Dec 2003 00:58:59 GMT
Viewed: 
1464 times
  
In lugnet.trains, Mark Riley wrote:
   Features:
  • Small (main body is 4x8 studs and 5 bricks tall)
  • Fits within standard 8-stud track spacing
  • Quick switching time (less than 0.1 second)
  • Uses unmodified switch
  • Semaphore-like arm indicates switch position
  • Uses small number of common parts
This approach does exert a lot of force, but not on the switch lever itself. Instead, the 4x3 panels absorb the hit when switching. After a while the roof tends to lift a bit, but after about 200 iterations the thing still hadn’t self-destructed. Perhaps a second 4x8 plate on the roof will stiffen things up a bit.

Does the motor stall at each limit?

You could probably reduce the “problem cars” issue with an axle connector and extension (move the motor further away from the switch lever) and reduce the size of the housing a bit.

ROSCO



Message has 1 Reply:
  Re: Another Motorized Switch Design :-)
 
(...) Yes, it does. I've been using it with this (URL) battery box> and all I need to do is tap on one of the buttons to get it to switch. I've also been running it with LACC with the throw time set to 0.1 second and this works great. Haven't tried (...) (21 years ago, 15-Dec-03, to lugnet.trains, FTX)

Message is in Reply To:
  Another Motorized Switch Design :-)
 
What with all the recent discussion on the various designs of motorized points, I started thinking of ways to further reduce the footprint. After many deadends & iterations, I finally came up with this (click thumbnails to enlarge): (URL) Here's a (...) (21 years ago, 15-Dec-03, to lugnet.trains, FTX)

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