Foamboard table

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Trystero
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Foamboard table

Post by Trystero » Thu Apr 27, 2017 8:58 am

Hey all,
I'm making a foamboard table using knauf foamboard from Bunnings ($12.50 for a 24"x48" sheet @ 30mm depth). I'm still carving away at it and will put up pics of my progress soon when I can drop their file size on my pc. After that I'll be painting it and I need some advice.

Has anyone got tips for painting foamboard? What do people use to prevent it from melting (from aerosols)?
I was thinking of trying gesso, plaster of Paris or watered down pva to seal it first, but I'm worried about losing details of cobblestones and bricks that I've carved into. Are there any aerosols that are available in Aus that people know about that can seal it before a spray painted base coat, or will I have to paint it all by hand? :(

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Trystero
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Re: Foamboard table

Post by Trystero » Fri Apr 28, 2017 9:56 am

Here are a couple of pictures of the close up detail that I'm trying to preserve
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PeteDG
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Re: Foamboard table

Post by PeteDG » Fri Apr 28, 2017 10:30 am

Oh! That looks lovely!
All those levels will make it awesome to play on!
"E'es not dyin' less I kills 'im!" - Bill Psyches

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PeteDG
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Re: Foamboard table

Post by PeteDG » Fri Apr 28, 2017 10:32 am

Oh and to stop it melting prime it with PVA (wood glue) I think...
"E'es not dyin' less I kills 'im!" - Bill Psyches

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Trystero
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Re: Foamboard table

Post by Trystero » Fri Apr 28, 2017 11:52 am

Thanks Peter, it's taking a while but I believe it'll be worth it in the end :)

I'll try the pva method on some scraps and see how it goes.

Here are some of the earlier pics I took of the process, it's a bit of a piecemeal project and doesn't follow any logical sequence. I'm mostly just working on the bits that I want to as I go. I'm happy to explain the steps I've taken to get particular results if anyone is interested.
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Earliest pic of Southbank - foamboard sheet can be seen clearly here
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A further developed pic of the south bank
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DSC_0520.JPG
Close up of the Southbank arched walk along canal
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Artificial Soul
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Re: Foamboard table

Post by Artificial Soul » Fri Apr 28, 2017 1:40 pm

Looking great so far, Trystero! It's starting to really come together :D Digging the arched cloister near the stairs!

I do have a couple of questions though-

How do you carve things smoothly / what do you use to cut the foam board for larger sections?
and
Whereabouts in Bunnings can one find this?

Been meaning to build a game board since...er...2013 but can't seem to find foamboard anywhere until you said you got some from Bunnings.Didn't know they stocked any O.o
I used to be indecisive, but now I'm not so sure.
I have a blog! https://peddlerofmagic.wordpress.com/ and a FB page for painting! https://www.facebook.com/PeddlerofMagic/

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PeteDG
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Re: Foamboard table

Post by PeteDG » Fri Apr 28, 2017 1:51 pm

I like the random look. Very London :)
"E'es not dyin' less I kills 'im!" - Bill Psyches

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Trystero
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Re: Foamboard table

Post by Trystero » Fri Apr 28, 2017 2:18 pm

Thanks guys :D

You can find the item at Bunnings at this link: https://www.bunnings.com.au/knauf-insul ... d_p0811027 though you can find it at other places too. It comes in different colours, I've seen it in blue, this orangey colour and a yellow. It's usually used for wall insulation, but is commonly used in hobby now.

To cut it I use a hobby scalpel to score the surface as this gives me the control a larger knife doesn't. I go over it a second time and aim to go about 2-3mm deep. I then use a very sharp, long blade, like a Stanley knife and take my time, extending the cut deeper into the material each time. I find if you try to go too deep in one stroke, or use a blunt blade, the foam tears and bunches.
Alternatively, you can purchase and use a hot wire cutter, but this takes practice and produces a slightly cooked surface that is harder to then carve details into.
For the finer details it's almost all scalpel work for bricks and ballpoint pen for rocks, grab some of your off cuts and play around with techniques. The other cool thing you can try is imprinting actual rocks onto the foam to get a rough surface - I apply that after the bricks have been cut and a couple ripped out to get rid of the uniformity. You can also try acrylic rollers from greenstuffworld

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PeteDG
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Re: Foamboard table

Post by PeteDG » Fri Apr 28, 2017 6:58 pm

Now I want to play. Stoppit! You are distracting me from the Egyptians :lol:
"E'es not dyin' less I kills 'im!" - Bill Psyches

Tauwolf
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Re: Foamboard table

Post by Tauwolf » Fri May 12, 2017 2:04 pm

This is looking absolutely stunning. Great work, and PLEASE keep posting pics!

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