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Subject: 
Re: MOC update CP Royal Hudson 4-6-4
Newsgroups: 
lugnet.trains
Date: 
Thu, 31 Aug 2000 22:28:37 GMT
Viewed: 
650 times
  
Chris,
You're absolutely right. Ben Fleskes figured this out early on. The driver
wheel assembaly is pinned on both ends. The back is pinned to the rear power
truck that pivots and translates up and down and the front to a "tounge" that
pivots and translates up and down. The tounge is tiled and slides into a tiled
void in the front "super truck" to allow for expansion/contraction around
curves.

I call it a super truck because compared to a regular truck its huge. This
allows for details that if were body monted would be obstructing the front
truck. The bogie plate is attached a full brick above the wheels sets and it
is 8x14 studs in size including the cow catcher.

The pic is a bit fuzzy but I posted it up on BrickShelf.
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=1225

SteveB


  Very cool model. I notice that all of the wheels are linked together,
and the wheels are attached to the front and the back of the engine.
This isn't a problem when the train goes through curves? If you pin down
the ends, doesn't the frame have to get longer as it goes through a
curve? Or conversely, if you hold the length of the frame constant,
don't the ends have to be able to move back and forth?

Chris



Message has 1 Reply:
  Re: MOC update CP Royal Hudson 4-6-4
 
Steve, Thanks, I missed that detail (the tongue). Chris (...) -- PGP public key available upon request. (24 years ago, 1-Sep-00, to lugnet.trains)

Message is in Reply To:
  Re: MOC update CP Royal Hudson 4-6-4
 
(...) Hey Steve, Very cool model. I notice that all of the wheels are linked together, and the wheels are attached to the front and the back of the engine. This isn't a problem when the train goes through curves? If you pin down the ends, doesn't (...) (24 years ago, 31-Aug-00, to lugnet.trains)

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