Tunnel Pictures

Please also list the technique you used (pink foam, plaster cloth, etc.). 

I used 1" wide corrigated cardboard strips, crisscrossed and attached with hot glue gun as support.  Then covered support strips with plaster cloth from Senic Express.  A very light weight application for making mountains, etc.  After two layers of plaster cloth, I applied plaster rock from molds and added texture with thin layer of plaster and before drying using various brushes.  Painted with acrylic paints thinned with water.  I hope this helps you.

TEX

Steve

Please make sure that the tunnel is bigger than your tallest cars and engines, Also for any future purchases( some scale MTH cars will not go thru Railking tunnel portals) I had to rise the portal approx 1 inch and should have rised it 1-1/2 inches.

The mountain is made out of 4 x 9 inch white foam that was given to me.

On the backside of this wall of mountain  is an opening so to get to any derailment. The mountain is just about 6ft 6 inches off of the carpet so you can not see the open backside. The tunnel is enclosed on all sides but the top of the mountain lifts off in the middle of the tunnel. The tunnel is on 080 curve track. Hope this helps.

I used 1 inch cardboard strips to get the basic form I was looking for, then used crumpled newspaper to get some high and low terrain. After that I covered it with plaster cloth. I used a brownish color which I sprayed on then used ground cover

to finish the mountain.The brick retaining wall is 1/4 inch masonite covered with brick paper from scenic express.The tunnel portals are also from scenic express.

Thanks, Alex

I said this before but I think the inside of a tunnel is as important as the outside. I use "Blackwrap" http://www.filmtools.com/roscinfoil12.html

Very easy to use and can be hot glued or stapled to the frame of your tunnel. It can be spray painted and only takes a few minutes to put in place. Don

Here's an picture of a MTH Premier autorack in a MTH Railking tunnel portal had has been rised 1 inch.

MTH Premier stack cars will not clear the tunnel portal

I just recently completed a couple of tunnels on my lower loop.

This first pic is the area where the finished tunnel in the second shot now resides. As Scale Rail points out, it is important to have some sort of interior wall inside the tunnel. I again used styrofoam, and painted it grey. Probably would be easier to use some kind of formable material and just staple it in beforehand.

These are the first pics of the tunnels and I sure didn't like the look of the portal in the last pic, and I have subsequently corrected it. In the pic, it looks like the portal is off center, but it really wasn't as bad as it looks in reality. A little more added vegetation and ground cover solved the problem. I didn't want anyone to think I would be happy with the way it looks in that photo.

Both of my tunnel projects were done with sheet styrofoam, and rocks I made using the rubber moulds, which I glued to the styrofoam. I actually built the formations off site and just set them in place when done. I've added another shot showing the double tunnel in the construction stage.

Hope this helps

REV

Thanks, everyone! This is a huge help to me!

I could have done better, and I'm still adding detail, but this is medium density fiberboard for the second level, along with blue foam wall for the lower level, and posterboard/plaster cast cloth/plaster of paris for the upper and detailing.  

Here are a few photos. Granted my tunnel is not the most "scale" or realistic in appearance but I'm happy with it. It is basically an approximate 4x4 box, with portals cut out. Bunched up newspaper was taped around the sides, covered with plaster cloth, Sculptamold and then painted. Same process covers the rest of the table frame. The top level is 1/2 inch plywood with 1 inch think beadboard foam following by track and scenery. Main level is 1 inch thick cabinet grade plywood followed by a layer of bead-board foam, track and scenery. Various hills on main level made out of scrap pieces of foam and Sculptamold.  

I know I am an oddity, but mine is just old window screen held up by scrap wood, with paper mache on top. It's not perfect, but I like it

Sorry for no close up pictures, but I haven't done much with it since my computer crashed, so I lost the old photos, and really didn't take new ones yet.

I just finished building a mountain (behind a stairwell) that has several tunnels portals. I posted pictures of all of it under my layout thread - link below - middle of the 7th page.

Good luck with your project, and please post some pictures of your progress.

Alex

I will certainly post pictures of my progress. Thanks again everyone for your help!