First time with plaster shell terrain - advice?

chandlerusm Feb 23, 2019

  1. chandlerusm

    chandlerusm TrainBoard Member

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    I’m about to try my first plaster shell terrain. I’ve got some black fiberglass screen and plaster cloth coming. I have seen crumpled paper for support as well as cardboard profile supports. I’m going to try the cardboard first as it seems like it will give more control over the finished product.

    How is the cardboard mounted to the surface? A couple of bent pieces glued in place at the bottom? Some other techniques? I see lots of examples of what the terrain contour looks like but not much showing what’s underneath.


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  2. Ristooch

    Ristooch TrainBoard Member

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    Unfortunately I don't have any photos from my layout to share, but I typically cut the cardboard into 1" wide strips and hot glue them to the structure of the layout. Just as you describe, you can fold over the ends of the cardboard and attach to the layout. You can hot clue or staple them, or use any other adhesive of your choice. Hot glue's main advantage is quick setup time. I then "interlace" or weave the strips and build p the scenery support from there.

    Crumpled paper makes a good support as long as there's something for the paper to rest upon. Then I suppose that you can either hot glue or staple the black fiberglass screen over the basic form and then start applying the plaster cloth.

    However, if you weave a tight enough lattice of cardboard, you may find that you don't need the screen.
     
  3. BoxcabE50

    BoxcabE50 Staff Member TrainBoard Supporter

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    You can use any cardboard available. Cheap and plentiful. I use hot glue and "shirt" type cardboard. The stuff you find in clothing packaging. Half and one inch strips, in the general form of the terrain outline desired.
     
  4. Shortround

    Shortround TrainBoard Member

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    Another method is to build it up with foam sheets. Cut layers to the profile wished, trim to get closer to profile wished and then if desired us cans of foam that is like whipped cream to file in voids and smooth the profile. Then when the glue and foam are dried cover with plaster adding more shape if desired.
     
  5. jimfitch

    jimfitch TrainBoard Member

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