Freerails Home 
Home Search search Menu menu Not logged in - Login | Register
Freerails > Model Railroad Forums > Scenery > The Merits Of Cardboard ?

Freerails IS ACCEPTING new Members ... To join Freerails ... See how to Register as a Member in the 'Joining Freerails' Forum

The Merits Of Cardboard ?
 Moderated by: . Page:  First Page Previous Page  1  2   
New Topic Reply Printer Friendly
 Rating:  Rating
AuthorPost
 Posted: Sun Mar 30th, 2014 11:41 pm
  PMQuoteReply
11th Post
Salada
Registered


Joined: Mon Nov 4th, 2013
Location:  
Posts: 1190
Status: 
Offline
Hello James,

I've used papier mache' in the past, as suggested by Dorian, over a contour framework of cardboard & found it to very strong, light & crack free using only a flour/water paperhanging mix - practically indestructible. I gloss painted it to seal it & then applied the usual type matt water based house decorators stuff for the correct colour. Jose is correct, in my opinion, in avoiding any printed, gloss finished cardboard. I've also used papier mache' strips over roughly hill shaped scrunched up newsprint, then removed any loose scrunched up inner packing after the whole job has dried out - this needs a few days to develop maximum papier mache' strength.

If using cardboard nowadays I would add some PVA (white wood glue) to the paperhanging paste. There is a newer technique that uses a thick slurry of papier mache' as a topcoat (using a food mixer/blender to totally mash up a mix of newspaper, PVA & water - ask the Mrs first for permission !) - I believe it sets like concrete but haven't so far used it myself (too scared to ask Mrs Salada !!).

I like the idea of Herb's 'stacked contour strips' rather than your 'solid pile' of cardboard/glue which could end up on the heavy side; in fact I might try this myself.

Your foam prices seem dear to me. What sort of foam are we talking about ? The blue/pink extruded styrene stuff or the denser, aluminium foil clad isocyanate stuff ? (which is certainly a bit pricey but would make strong & lightweight scenery ). 


Regards                       Michael

Back To Top

 Posted: Mon Mar 31st, 2014 11:15 am
  PMQuoteReply
12th Post
Kitbash0n30
Registered


Joined: Mon Dec 10th, 2012
Location: Boonville, Missouri USA
Posts: 719
Status: 
Offline
Stacks of cardboard pancakes can be quite heavy.
Reminds me, need to get some more progress made on that portable corner tunnle/plant stand thing.



____________________
See y'all later, Forrest.
Screw the rivets, I'm building for atmosphere
Back To Top

 Posted: Mon Mar 31st, 2014 08:34 pm
  PMQuoteReply
13th Post
Salada
Registered


Joined: Mon Nov 4th, 2013
Location:  
Posts: 1190
Status: 
Offline
Hi James,

I forgot to mention that if you can get lucky there is a 'Free Source of Foamboard' -
- the stronger, foil clad stuff (known as ISO or PIR .. polyisocyanurate.. Trade Names Celotex, Kingspan ).

Look out for a local construction site where the external walls/roof are nearing completion, then ask the Foreman/Site Clerk if you can clear up any left over bits of foamboard insulation. It will save them having to bag it & truck it away. I don't know what your current 'Elf & Safety Regs are like (a gift to us from the US that we could have done without !!) - you may find people on a small construction site are more amenable.
I have a full sack of the stuff waiting in the workshop for 'Chavez Junction' as & when I can finish the trackplan.

Regards                 Michael

Back To Top

 Posted: Mon Mar 31st, 2014 11:36 pm
  PMQuoteReply
14th Post
Michael R
Registered


Joined: Sun Jan 19th, 2014
Location: Virginia Beach, Virginia USA
Posts: 12
Status: 
Offline
You could do a combo of cardboard and foam.

Use an assembled box as the core and the foam around it to carve out your rocks, or use plaster molds to get the rocks.

Also look at the expanding foam in a can around a cardboard box.

Back To Top

 Posted: Tue Apr 1st, 2014 01:46 am
  PMQuoteReply
15th Post
Mr Stumpy
Registered


Joined: Sat Nov 2nd, 2013
Location:  
Posts: 138
Status: 
Offline
Let's see...DaVinci built models of all kinds of stuff, much of it pretty advanced for the Middle Ages, and he was an artist.

Model railroaders build models of all kinds of stuff too, most of it known and very recognizable, but we're NOT artists?

If Davinci were alive today, he'd hardly be noticed I guess?:shocked:

Stumpy in Ahia:old dude:

Back To Top

 Posted: Tue Apr 1st, 2014 03:29 am
  PMQuoteReply
16th Post
jtrain
Registered


Joined: Sun May 27th, 2012
Location: Missoula, Montana USA
Posts: 1006
Status: 
Offline
I guess I should reply at some point. First time I've had time now that a blizzard is blowing through.

Anyways, since I don't have much better to do and the materials are nearby and basically free, I'm going to try and build a small layout base for a small HO scale switching layout. It will have to be small enough to fit in one of my file cabinet drawers. This will be a good test to see if the cardboard will work, and I'll report back then.

Until then, I've taken everyone's suggestions and I'll be keeping them in mind as I construct the layout.

--James:java:



____________________
James W.

New Blog (permanent this time)

blackhillsrr.blogspot.com
Back To Top

 Posted: Tue Apr 1st, 2014 02:51 pm
  PMQuoteReply
17th Post
chasv
Registered


Joined: Mon Oct 24th, 2011
Location: Riverside, California USA
Posts: 881
Status: 
Offline



____________________

Charles
Back To Top

 Posted: Tue Apr 1st, 2014 11:15 pm
  PMQuoteReply
18th Post
Salada
Registered


Joined: Mon Nov 4th, 2013
Location:  
Posts: 1190
Status: 
Offline
I think I recognise those "corrugations" in the landscape, Charles. A recently ploughed field perhaps ?!.

Very good.

Regards                                 Michael

Back To Top


 Current time is 12:44 pm
Page:  First Page Previous Page  1  2   

Freerails > Model Railroad Forums > Scenery > The Merits Of Cardboard ?
Top



UltraBB 1.172 Copyright © 2007-2016 Data 1 Systems