Trains.com

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Viaduct Bridge Project

10363 views
98 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    March 2017
  • 8,173 posts
Posted by Track fiddler on Sunday, January 10, 2021 11:50 PM

I'm flipping this!

There's always a solution and I'm not going to let a 22" long piece of 1/4" foam get the best of me.

The other side of the foam is rough from the blade of the table saw because the operator was nervous. 

I will take some 80 grit on the orbital sander and resurface it kind of like the Zamboni resurfaces the hockey rink and have a fresh slate tomorrow.

 

MusicAll in all I'm not doing Bricks in the WallMusic Laugh

 

 

 

TF

  • Member since
    March 2017
  • 8,173 posts
Posted by Track fiddler on Sunday, January 10, 2021 4:26 PM

Good evening

Thanks John.  By the look of your scratch built building coming along on WPF and some other ones I've seen you build.  Looks like you're doing great to me with your modelingYes  I especially like that one cabin you built on the Mountain top.

 

I got the foam side panels going this afternoon.

I did screw up royally though.  After I got all the vertical lines done on one, it occurred to me I didn't take into account how many pannels I have to do.  A total of sixTongue TiedSad.  

It isn't exactly like doing brick lines on two twin portals.  The square inches is probably more like twenty of them.  A random stone pattern would have been much better as it's about ten times as quick and looks just as good, if not better.  You just scribble quickly,  little circles, little rectangles, little squares, thin one, thick one and before you know it you're done.

And I didn't take into account I have to cross all the outer T's on the inside arch panels after they are installed or they'll overlap the sailor course. 

I created way too much work for myself.  I'm screwed! LaughIndifferent

 

 

TF

 

 

  • Member since
    February 2018
  • From: Flyover Country
  • 5,557 posts
Posted by York1 on Sunday, January 10, 2021 2:05 PM

Nice work, TF!  I wish I had the knowledge and the room to attempt some of the things you are doing.

York1 John       

  • Member since
    March 2017
  • 8,173 posts
Posted by Track fiddler on Sunday, January 10, 2021 1:59 PM

Thanks David, Thanks Mike!  I always appreciate a complimentYes

 

Well,  After brunch I transferred the rough template to poster board and added 3/16 to the side radiuses for the new cutout.  These radiuses are appx. 21 to 22 that go over the viaduct.

My smallest radius on my layout is 18" and I did a test with my 4-8-4 Northern.  This locomotive's nose sticks out the most on outside curves of all my Steamers, even the Challenger.  3/16" outside the edge of the cork gave plenty of clearance.

I laid the side stencils on the Masonite for reference.  The bottom one is the original that needed to be changed.  7/8" looked a little beefy to me as I thaught 5/8" would look more cosmetically correct.

I also needed to subtract 1/4" as the inside Arch panels will be 1/8" on either side.  Reducing the foam legs gave me a quarter inch larger radius for more clearance is a plus.  I left the ends of the side panels run wild a little thicker than they will eventually be.  That way I can cover, or trim them to suit when I am doing scenery.

I think later this afternoon I'll transfer the templates to the 1/4" foam panels and take it from there. 

I'm kind of winging it here.  Fabricating the parts is the easy part of this project.  I'll probably need some participation when I have to put this thing together.  I have some question marks rattling around in my head on choice of assembly methods.  I'll be picking your guys's brains when I get to that pointYes

 

Thanks for looking

 

 

 

TF

 

 

  • Member since
    May 2010
  • From: SE. WI.
  • 8,253 posts
Posted by mbinsewi on Sunday, January 10, 2021 12:53 PM

Great way to get the design started with the mock-up.

Mike.

  • Member since
    October 2020
  • 3,604 posts
Posted by NorthBrit on Sunday, January 10, 2021 11:52 AM

TF.  Bridge builder extaordinaire!      Well done.

 

David

To the world you are someone.    To someone you are the world

I cannot afford the luxury of a negative thought

  • Member since
    March 2017
  • 8,173 posts
Posted by Track fiddler on Sunday, January 10, 2021 10:32 AM

Originally I started making a stencil for the double line viaduct bridge.  

A break was left in the stencil so I knew where to place the arch over the tracks below while designing the sides.

The legs for the viaduct we're positioned symmetrically to the radius.  The rear of the legs were wider.  The angle of the tracks below did not allow enough clearance.  You can see the angle on the diagram above.

At that point I decided to center the front stencil arch and use the same stencil centered over the tracks on the back as well.  This gave me enough clearance.  An addition came to mind at that time, that I could add a radius to run a separate line Into the roundhouse servicing area.

This would allow me a separate line for a coal tower, a water tower and a sanding tower.

To be continued.  I just started this project yesterday and will continue after Sunday brunchDinner

 

Thanks for lookingSmile, Wink & Grin

 

 

TF

 

  • Member since
    March 2017
  • 8,173 posts
Posted by Track fiddler on Saturday, January 9, 2021 11:30 PM

LaughLaughLaugh

I haven't hit the rack quite yet Wayne.  A sense of humor before I retire is always goodYes

And that was a good oneLaugh

 

 

 

TF

  • Member since
    January 2004
  • From: Canada, eh?
  • 13,375 posts
Posted by doctorwayne on Saturday, January 9, 2021 11:26 PM

I've known a few women with curves like that, TF.....proceed with caution, and enjoy the ride. Smile, Wink & Grin

Wayne

  • Member since
    March 2017
  • 8,173 posts
Viaduct Bridge Project
Posted by Track fiddler on Saturday, January 9, 2021 10:50 PM

I had a thread a while ago on bridges.  All the bridges posted were appreciated. 

Since that time,  I have removed all of my constructed bridges and replaced them with temporaries so I can lay my track before I ever get them all painted.

Bear posted a Viaduct bridge that I really admired.  If I forgot to pay him a compliment,  I pay it nowYes

Because of his post,  I decided to delete the plan of a double trestle bridge to be replaced with a double viaduct bridge on my Layout.

The plan is in the works and the stencils have already been started.

I call it the Bridgemuda Triangle

It's getting quite late now.  I will be hitting the rack soon and getting back to this tomorrow.

 

 

 

TF

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Users Online

There are no community member online

Search the Community

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Model Railroader Newsletter See all
Sign up for our FREE e-newsletter and get model railroad news in your inbox!