Subject:
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Re: A castle fan's Train plan
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Newsgroups:
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lugnet.trains
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Date:
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Wed, 15 Mar 2006 18:58:46 GMT
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Viewed:
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2034 times
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In lugnet.trains, Anthony Sava wrote:
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I want this train to be fully layout compatible, and by that I mean I want it
to be a fully functioning LEGO train capable of running on normal track
layouts.
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The engine:
The Polar Express steam locomotive, at least in the movie (I can’t say for
sure about the book) is based entirely off of one engine: the Pere Marquette
Berkshire type 2-8-4 locomotive #1225.
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If you plan to put connecting rods on the drivers, you’ll want to get 4 large
wheels with flanges and 4 that are blind, no flange. The blind drivers will
allow you to run through curves, and place the wheels closer to each other If
you want the side rods connected to a piston the drive wheels will need to be
fixed to the body, not swivel. I’d recomend putting a pair of blind drivers
toward the front, then flanged, then blind, then a final pair of flanged. The
real trick is attaching the leading wheels. These will need to attach to a pivot
point. The pivot point needs to be as far back as possible, preferably near the
axle of the front flanged wheels. The front wheels also need to avoid hitting
the pistons. The trailing 4 wheels are easier, as they form a truck, this can
almost float at the back of the engine.
Build your wheel arrangment first, including drive rods and pistons. Test this
out along with a tender mock up.
I hope this helped. I’ve built only two engines with the BBB wheels, the first
was a major learning experience. It was also one of the first train mocs I
tried.
Mat
Mat
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Message has 1 Reply:
 | | Re: A castle fan's Train plan
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| (...) Thanks for the pointers! I had already planned on purchasing the blind drivers, but I was planning on having my drive wheel arrangement with a flanged driver first. Why do you suggest having a blind wheel first? Do the pistons hide the (...) (18 years ago, 15-Mar-06, to lugnet.trains, FTX)
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Message is in Reply To:
| | A castle fan's Train plan
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| Hey all, Before I begin, let me apologize for not being 'with it' as far as the train lingo goes. I'm just a novice, so please be kind. Before I was an AFOL, I was a model train fan, and to tell the truth I have a sizable collection in storage (HO (...) (18 years ago, 13-Mar-06, to lugnet.trains)
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