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Re: Top tips for making foam terrain boards

Posted: Wed Mar 03, 2021 8:48 pm
by Paul
Oh sweet Baby Jesus and all the orphans, where to start!

Plan your boards.

Make templates of the edges, when they are not just flat, so that you can make sure they'll fit together cleanly.

Cut foam with a very sharp bread knife or a retractable "snap off" knife.

Hot wire cutters and Creme brulee burners are ok but work better on expanded polystyrene rather than the extruded foam I think you have? If you're doing a lot of these get a certified chemical protection half mask like this: https://www.amazon.co.uk/gp/product/B00 ... UTF8&psc=1
Key point to remember is white "smoke" is predominantly water vapour and mostly harmless but any hint of black smoke and you're burning the foam and producing toxic chemicals.

Don't get into burning or sanding your contours down to smooth gradients. It's a thankless task and makes too much mess. use modelling compound/Sculptamould which are largely a mix of plaster and paper.

Do anything you can to avoid painting too much of the board! Mixes of fine aggregates, coloured tile grout and pigments can, when well done totally avoid the need for painting. Tile grout is also an adhesive so it will make your boards rock hard and wargames friendly.

Get a static grass applicator to grass your boards. Use PVA for the first layer then spray varnish for additional layers. Start with a 2mm static then rough it up and add patches of longer grass. but for wargaming don't go more than 6mm. Add thin patches of your aggregate/grout mix over the grass to break it up.

Static grass also works pretty well for disguising the joins between boards if you make sure the colours are always similar towards the edges.

If you prefer go for foam flocks, as they can be graded to give different ground effects and are much more hard wearing and colourfast than sawdust types.

Seal everything at every stage before moving onto the next.

Over a decade after producing about 40 x 2 ft square boards i'm just starting to refurbish some of them for my new 15mm projects so i'm also heading down the same avenues.

Happy to chat about this and bounce ideas around at any time :)

Re: Top tips for making foam terrain boards

Posted: Thu Mar 04, 2021 12:50 pm
by goat major
Thanks everyone, remarkably on topic and helpful all round . Cheers !

Re: Top tips for making foam terrain boards

Posted: Thu Mar 04, 2021 1:42 pm
by Jeremy
Bloody ridiculous. Stayed on topic the whole way. No cock jokes or innuendos aside from Dave’s brave attempt. Pathetic. All of you. You should be ashamed of yourselves.

Re: Top tips for making foam terrain boards

Posted: Thu Mar 04, 2021 4:20 pm
by Wg Cdr Luddite
My top tip : get someone else to do it for you.

Re: Top tips for making foam terrain boards

Posted: Thu Mar 04, 2021 6:05 pm
by BaronVonWreckedoften
Jeremy wrote: Thu Mar 04, 2021 1:42 pm Bloody ridiculous. Stayed on topic the whole way. No cock jokes or innuendos aside from Dave’s brave attempt. Pathetic. All of you. You should be ashamed of yourselves.
To be fair, it's not a topic we've ever had before, so there was a certain novelty value. Once everyone's over that, we'll revert to type pretty quickly. Bottom of page 2/top of page 3 is my prediction.

Re: Top tips for making foam terrain boards

Posted: Thu Mar 04, 2021 6:08 pm
by Paul
BaronVonWreckedoften wrote: Thu Mar 04, 2021 6:05 pm Once everyone's over that, we'll revert to type pretty quickly. Bottom of page 2/top of page 3 is my prediction.
Having spent a year researching current techniques before only recently starting on my board refurb....I can warble on for a full three pages on my own! :D

Re: Top tips for making foam terrain boards

Posted: Thu Mar 04, 2021 6:09 pm
by BaronVonWreckedoften
Well.....yes.....but you're.....not going to......are you?

Re: Top tips for making foam terrain boards

Posted: Fri Mar 05, 2021 7:29 am
by levied troop
One can only hope you are using proper blue Craftfoam:
Image

Putting a layer of plaster-impregnated bandage over the material, once carved, helps to even out any layers while giving a pleasing roughness to the groundwork before the detailed sand/gravel mix and strengthening the boards.

Now, just hang on while I sort out the other 7 pages of photos.........

Re: Top tips for making foam terrain boards

Posted: Fri Mar 05, 2021 8:19 am
by grizzlymc
I would second the panda on templates for sloping edges. I had in mind getting them cut from 2mm stainless steel. You need to make scale cards with all your features on them to be sure that you can mix and match. That was the stage where I gave up.