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Subject: 
Re: New non-magnetic coupler design
Newsgroups: 
lugnet.trains
Date: 
Mon, 28 May 2001 15:12:13 GMT
Viewed: 
1580 times
  
In lugnet.trains, Harvey Henkelman writes:
> In lugnet.trains, Christopher Masi writes:
> > Hey all,
> > 
> >  I finally had the chance to run my trains this weekend. If you don't know, I
> > have been building my trains 8-wide, and the size and weight of my cars was
> > causing a problem.
> >  The surging that the long cars cause as they go through the corners is so
> > extreme that at power settings of 5 and 6 (on the LEGO speed regulator) the
> > magnetic couplers kept uncoupling. Inserting a motor near the end of the train
> > actually made the problem worse.
> >  I needed couplers that would not uncouple. My first attempt was strong, but it
> > had some problems. I think my second attempt solves the problem fairly well. I
> > use a small Technic bushing, a #2 Technic axle, a steering connector (part
> > name?), and a 1x4 rounded technic plate with hole at each end. The connector
> > fits onto the standard buffer or a 2x2-with-center-hole plate. The good things
> > about this coupler design are (1) it is strong, (2) it is relatively easy to
> > couple and uncouple cars (no snapping of bricks onto pegs, just a slip over the
> > top of an axle), and (3) because the couplers are the same at both ends of the
> > car there is no correct end issue.
> >  Oh, another thing that I noticed about these couplers is that, since they have
> > some give, putting a motor at the end of the train doesn't eliminate the
> > surging, but it eliminates the annoying surging noise that comes from the motors
> > at the front of the train.
> >  Well, here are some MLCAD screen shots. If you want the files let me know.
> > I'll probable post the .dat files sometime in the not too distant future.
> > 
> > http://cmasi.chem.tulane.edu/~lego/NOLTC/tech/new_truck/new_truck.htm
> > 
> >  By the way, I think that running my trains at high speed causes the track to
> > separate. Do you think that this is strain caused by misaligned track, or is it
> > just part of the hazard of running big trains as fast as you can? I should
> > mention that my track is not snapped down, it is laid out in the living room on
> > the carpet.
> > 
> > Chris
> This is the best alternative coupling design I've seen yet. I'll try this
> one myself.-Harvey

WOW, thats great, i may have to try.
Josh



Message is in Reply To:
  Re: New non-magnetic coupler design
 
(...) This is the best alternative coupling design I've seen yet. I'll try this one myself.-Harvey (25 years ago, 28-May-01, to lugnet.trains)

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