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Offline frickwg  
#1 Posted : 21 January 2022 01:21:26(UTC)
frickwg

United States   
Joined: 27/03/2014(UTC)
Posts: 67
Location: CALIFORNIA, SAN CLEMENTE
There are lots of HO scale rail tunnel portals but where might I find an Automotive tunnel Portal?

Rail tunnels are in a different height/wide ratio, for obvious reasons.
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Offline marklinist5999  
#2 Posted : 21 January 2022 09:32:37(UTC)
marklinist5999

United States   
Joined: 10/02/2021(UTC)
Posts: 1,697
Location: Michigan, Troy
Depending on the era you're modeling and the width of roadway, there may be some rail portals that can work. An example is the European ICE portals
Which look just like the expressway ones through the Alps, etc.
I have used a Vollmer single track steam era portal on a 2 lane road mountain tunnel.
Additionally, you could make them either by 3D printer, or use various diameters of pvc white drain pipe and couplings for modern ones.
A square brick portal could even be made of a block of wood or plywood.
Ones that comes to mind are the Fort Pitt and Squirrel HILL tunnels in Pittsburgh. The Liberty tunnel has a square shape with round portals.
The bricks can be painted on or use glue on paper photo sheets, or cast rubber or plastic ones from Chooch enterprises, Busch, Faller, etc. They make different colors and sizes of retaining walls, etc.
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Offline DaleSchultz  
#3 Posted : 21 January 2022 15:53:07(UTC)
DaleSchultz

United States   
Joined: 10/02/2006(UTC)
Posts: 3,997
I was able to convert a rail portal to my satisfaction. I think it was by Noch, it is a foam material and I cut it shorter with a work knife.

P1050789.JPG
P1050792.JPG
Dale
Intellibox + own software, K-Track
My current layout: https://cabin-layout.mixmox.com
Arrival and Departure signs: https://remotesign.mixmox.com
thanks 3 users liked this useful post by DaleSchultz
Offline marklinist5999  
#4 Posted : 21 January 2022 16:28:58(UTC)
marklinist5999

United States   
Joined: 10/02/2021(UTC)
Posts: 1,697
Location: Michigan, Troy
Noch are wonderful! You have to cut pvc pipe on a table saw to height in half or by a quarter or a third.
Offline mike c  
#5 Posted : 21 January 2022 17:27:41(UTC)
mike c

Canada   
Joined: 28/11/2007(UTC)
Posts: 7,442
Location: Montreal, QC
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Offline marklinist5999  
#6 Posted : 21 January 2022 18:09:32(UTC)
marklinist5999

United States   
Joined: 10/02/2021(UTC)
Posts: 1,697
Location: Michigan, Troy
Those Viessmann led ones are cool! About $55 U.S. though. Led strips can be bought very cheaply, as well as resistors.
Offline frickwg  
#7 Posted : 21 January 2022 18:42:10(UTC)
frickwg

United States   
Joined: 27/03/2014(UTC)
Posts: 67
Location: CALIFORNIA, SAN CLEMENTE
The Faller is fine, but I need something flat to the wall.....
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Offline marklinist5999  
#8 Posted : 21 January 2022 19:21:02(UTC)
marklinist5999

United States   
Joined: 10/02/2021(UTC)
Posts: 1,697
Location: Michigan, Troy
You can cut it flat, or cut pvc flat also, and the Noch tunnels cut with a knife.
Offline DaleSchultz  
#9 Posted : 21 January 2022 19:57:12(UTC)
DaleSchultz

United States   
Joined: 10/02/2006(UTC)
Posts: 3,997
the inside of the tunnel can be made from Styrofoam, and either painted or lined with paper printed with brick/concrete/etc.

Dale
Intellibox + own software, K-Track
My current layout: https://cabin-layout.mixmox.com
Arrival and Departure signs: https://remotesign.mixmox.com
thanks 2 users liked this useful post by DaleSchultz
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