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Subject: 
Re: Automated 9V Switch/Points
Newsgroups: 
lugnet.trains, lugnet.technic
Date: 
Wed, 24 Jan 2001 17:07:30 GMT
Viewed: 
838 times
  
I notice that there is a Force (or Power, Resistence...) rating on the side
the white gear. Are they all the same or has LEGO made different ones? When
I tried using the white gear (in many different configs) I could never get
the gear to throw the switch (oh sure after much gear reduction maybe...).
SteveB
PNLTC

In lugnet.trains, Wessel Burgers writes:
In lugnet.trains, John R. Clark writes:
Nice compact design with hardly any hard-to-find parts. Only problem is it
won't work for me. Maybe you opened your switches and trimmed the tab off,
so they would slide more easily?

Nope, I've made no modifications to any parts... It would be like cutting my
own flesh!

With unmodified switches, the white gear engages before the switch is thrown
(for me, at least). Any suggestions?

Hmmm... I haven't experienced this problem (yet). I used a relatively
new/unused white gear so perhaps mine doesn't slip too easily? A problem
that might occur when you use the RCX to control the switch, is that you use
a power setting that is either to high or to low. If it's too high the white
gear might kick in before the point has a chance to throw. When the power
settings are too low (or batteries are weak) there may not be enough
traction to throw the switch.

Also, two design suggestions:
1) Extending the axle from 3 to 6-long allows you to put a visual indicator
on the exterior of the housing, so you can tell which way the switch is
thrown from far away.

cool idea!

2) The piece with the built-in rack is the piece I have the least of. You
can use the same piece without the built-in rack, and just add a 1x4 rack
piece. Then build the base up by one plate so it will fit under the gear.

Thanks for the input!

Wessel



Message has 1 Reply:
  Re: Automated 9V Switch/Points
 
(...) I don't think so... (...) I think I found a possible explanation for why It didn't work for you guys. It has something to do with the way you connect the 1 x 4 Liftarm to the switch. Look at this: (URL) tried this at home and when I connect (...) (23 years ago, 24-Jan-01, to lugnet.trains, lugnet.technic)

Message is in Reply To:
  Re: Automated 9V Switch/Points
 
(...) Nope, I've made no modifications to any parts... It would be like cutting my own flesh! (...) Hmmm... I haven't experienced this problem (yet). I used a relatively new/unused white gear so perhaps mine doesn't slip too easily? A problem that (...) (23 years ago, 24-Jan-01, to lugnet.trains)

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