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!

Foam roadbed height transition question

1082 views
8 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    October 2007
  • 52 posts
Foam roadbed height transition question
Posted by schdp on Friday, January 4, 2008 5:26 PM

Been thinking about an area on my layout that I would like the main line taller to be more realistic and wondered how others handled it. Since this area is were the main line passes the yard it is actually going to be on one of the flat WS roadbed sheet foam I would raise it up by putting it on another regular line of WS roadbed but not sure what the best way to make the transition from level to raised. I guess with cork I could have just sanded it to a tapered raise. Ideas?

 Here are some pics to help visualize...

  • Member since
    August 2004
  • From: Amish country Tenn.
  • 10,027 posts
Posted by loathar on Friday, January 4, 2008 5:44 PM

Yep, cork would have sanded real EZ...

They sell things called door shims at the home improvement stores. They work pretty good. They're wooden wedges that are about 3/8" on one end and tapper down zero on the other.

  • Member since
    October 2007
  • 52 posts
Posted by schdp on Friday, January 4, 2008 11:00 PM
Maybe I could use cork on just the transitions....hrmmmm
  • Member since
    December 2007
  • 69 posts
Posted by Bighurt on Friday, January 4, 2008 11:18 PM

I'm sure there are a million ways to go about it, ok maybe not that many. 

I myself plan on using extruded polysterene as a base product, however I still plan on using cork between the track and subgrade.  And seeing that I am modeling a Branchline instead of a BNSF main, superelevation isn't necessary.

To the point, so that I can accuratly achieve the look of a secondary as a secondary I have been contemplating using N scale roadbed.  While the main's will be placed on HO scale roadbed, the N scale raodbed under he secondary will achieve the look as if the secondaries are placed directly on the subgrade.  This will also work well for yards and industry spurs.

I have a bunch laying around might as well use it.  I have O scale raodbed as well any ideas.

Cheers

  • Member since
    July 2006
  • From: 4610 Metre's North of the Fortyninth on the left coast of Canada
  • 9,352 posts
Posted by BATMAN on Friday, January 4, 2008 11:34 PM
A 18" or 24" cedar shake makes a nice transition. Just trim it to the right width.

Brent

"All of the world's problems are the result of the difference between how we think and how the world works."

  • Member since
    May 2003
  • From: Tacoma
  • 170 posts
Posted by olequa on Saturday, January 5, 2008 2:51 PM

Consider cutting the foam on either side of the roadbed that needs to be raised and then just raise it up. Support it using risers. The foam will form a nice smooth transition if you have enough room to allow a gentle grade.

George 

  • Member since
    February 2006
  • From: SW Wisconsin
  • 162 posts
Posted by 60YOKID on Saturday, January 5, 2008 3:19 PM

 

I just used a thinner cork under my lower tracks.

-Bill 

  • Member since
    February 2005
  • From: In the State of insanity!
  • 7,982 posts
Posted by pcarrell on Saturday, January 5, 2008 3:53 PM

I used rope caulk for my roadbed.  To form a transition I just grab a small wallpaper roller and allyl a little pressure to make a ramp.

Works like a charm, it's cheap and available at any home improvement store, stays flexible for years (so it doesn't get hard and act like a soundboard) and latex caulk sticks to it so you can stick it down and stick the track to it.

Can't beat it!

Philip
  • Member since
    October 2005
  • From: Ulster Co. NY
  • 1,464 posts
Posted by larak on Saturday, January 5, 2008 9:55 PM
 schdp wrote:

Been thinking about an area on my layout that I would like the main line taller to be more realistic and wondered how others handled it. Since this area is were the main line passes the yard it is actually going to be on one of the flat WS roadbed sheet foam I would raise it up by putting it on another regular line of WS roadbed but not sure what the best way to make the transition from level to raised.

 

LONG wooden shingles, WS 2% foam incline starters, overlapping layers of masking tape, sanded foamboard (smooth side up), lowered base, etc.

Just be careful to make the transitions smooth and gradual and the slope gentle. 

Karl 

 

The mind is like a parachute. It works better when it's open.  www.stremy.net

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!