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Subject: 
Re: EMD DD40 almost done - pics up!
Newsgroups: 
lugnet.trains
Date: 
Wed, 23 Feb 2000 01:25:31 GMT
Reply-To: 
cmasi@cmasi.chem.tulane.*nomorespam*edu
Viewed: 
1304 times
  
Mike,

  Nice work, a bit big don't you think? Anyway, I was actually writing about
the curve straight-track corners. I set up curved-straight track corners once.
I was trying to enlarge the radius to cut down on high speed derailing, but
what I found was that the repeating curve, straight, curve, etc. layout
actually shook the trains off the track at a lower speed. It was as thought the
period of the inverted pendulum, a.k.a. the train, was the same as the periodic
straight, curve switch. Thus, when the train hit the next curve it was on its
outward rock/swing and jumped the track more easily. OK, true a 76 stud long
engine is not going to be swinging around like the smaller cars, but the engine
will be pulling smaller cars.
  By the way, anyone else noticed this behavior, or is it just me.

Thanks,
Chris

P.S. I thought about modeling this one, but didn't because of the colors, and
the size. I need to work up to a monster like a DD40.

P.P.S. Oh oh oh railing....how are you going to do the railing. I am having
dificulties with railings. I have been using technic axles but they are to
thick. PLEASE come up with good railing.

Mike Poindexter wrote:

Thanks for the comments.  Yes, Larry, I was so excited that I forgot to put
the link up, but you were very correct in figuring it was here:
http://brickshelf.com/cgi-bin/gallery.cgi?f=165

The tighter curve has put a lot of restrictions on me.  Although the loops I
have running right now are tight, I will be converting to interspersed
curve/straight sections for making corners around the modular layout [1].

This loco will be the benchmark for testing all of my track.  If this
monster can make it through, I am fairly safe with anything we will see
coming down the line, with the possible exception of some monster steamers.
Of course, this makes the roundhouse a LOT bigger project.

I have been happy with the proportions in almost every aspect.  Getting the
right kind of detailing in the right spot has been a challenge, and function
takes precedence over form, so a few items had to be left off to allow this
beast to successfully pull cars.

My biggest hope with this model is that I can impress the locals enough to
get them to trust me with their HO cars.  Being able to borrow an actual
model is immensely helpful in getting things to look right.  When I go back
on Thursday, I will return the DD40 to its rightful owner (after taking some
close-ups for my notes and future detailing upgrades) and see if I can
borrow some other rolling stock I would like to make.  I still need to get a
lot of different freight cars.

Mike Poindexter

[1]  Assuming that the BayLTC sets interspersed curves as the deFacto
standard for out modular layouts.  This is one of the major issues that the
module standards has to settle.  Tighter radius curves make it VERY
difficult to have long/wide cars and I am hoping that everyone sees the
benefits of bigger curves on the modules.  If your track can run any size
train, then it is easy to upgrade to 8 wide rolling stock.

Ben Fleskes <benfleskes@msn.com> wrote in message
news:Fq7K7E.Bsz@lugnet.com...
Hmm, I think you are little ahead of your time.  Perhaps in another five • years
when LEGO releases larger radius track, you'll be on to something.

Building to scale should be as much about functionality as well as meeting
exact scaling. But I leave that to debate.

Nice job.  you've pushed the boundaries of LEGO trains.  And I'm all for • that.

Ben (the one with a wimpy roundhouse)


In lugnet.trains, Larry Pieniazek writes:
I think Mike forgot to say where, and I am guessing it is here:

http://brickshelf.com/cgi-bin/gallery.cgi?f=165

Mike Poindexter wrote:

I have uploaded some pics of the EMD DD40 I have been working on.

I like the comparision pic with the HO scale model pic. You've got the
proportions right! But it's so HUGE... I think 6 wide may have been a
better choice. Still, very nice work.

--
Larry Pieniazek - lpieniazek@mercator.com - http://my.voyager.net/lar
http://www.mercator.com. Mercator, the e-business transformation company
fund Lugnet(tm): http://www.ebates.com/ ref: lar, 1/2 $$ to lugnet.

Note: this is a family forum!



Message is in Reply To:
  Re: EMD DD40 almost done - pics up!
 
Thanks for the comments. Yes, Larry, I was so excited that I forgot to put the link up, but you were very correct in figuring it was here: (URL) tighter curve has put a lot of restrictions on me. Although the loops I have running right now are (...) (24 years ago, 20-Feb-00, to lugnet.trains)

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