How to prevent my terrain tiles from warping

[Stug]

Hi everyone. I have just started to build my first terrain tile for a 6mm world war II wargame. I have used foamboard and painted the top with different shades of brown. I also tried to make my first hills.

I have noticed that there is a lot of warping. What do you suggest me to do to prevent my tiles from warping?

Here is a look of what it looks like. There will be hills and a little road right in the middle.

[Bowman Stringer]

Mel the Terrain Tutor has a great video on the topic of warping. 26 minutes well spent:

[Cacique Caribe]

Excellent video, Bowman.  That was the link I was going to post, along with one (or two) other, on the merits of using EPVC instead of mdf or “foamboard” (foamcore):

An oldie, but still useful, specially the “don’ts”:

Note:  keep your use of PVA to an absolute minimum.  Only where necessary, and only in very small amounts.

EPVC is the material I have switched to:

https://www.ebay.com/itm/172216417658?var=473751257542

https://www.ebay.com/itm/272083677410?var=570894033341

Dan
Loads of WIPs: https://www.flickr.com/photos/9593487@N07/albums/with/72157710630529376

[Paint it Pink]

Cheers for all the great links.

One is good, more is better
http://panther6actual.blogspot.co.uk/
http://ashleyrpollard.blogspot.co.uk/

[Patrice]

With a wooden frame all around it.

http://www.argad-bzh.fr/argad/en.html
https://www.anargader.net/

[Not Connard Sage]

Use 4/5mm marine plywood as a base.

 

Obvious contrarian and passive aggressive old prat, who is taken far too seriously by some and not seriously enough by others.

[Deleted User]

One time I stuck BBQ skewer sticks through foam boards to give it some rigidity. It was a pretty small board though, maybe a little bigger than 12″x 12″. It worked very well but had to be done before the warping and limited to the length of the skewer sticks.

You might be able to get away with skewering only the edges of a large board if you think those hills will be heavy enough to flatten any warping in the middle.

[Cacique Caribe]

When all else fails … use CDs!

Though sometimes they too need reinforcing a little, to avoid warping.  And, once again, keep PVA use to an absolute minimum!

Even though I used an internal “frame” to avoid warping with this oval MDF base, it still warped a bit:

Bottom line, the only basing material that has never warped on me (so far) has been EPVC sheets.  So far.

Dan
Loads of WIPs: https://www.flickr.com/photos/9593487@N07/albums/with/72157710630529376

[Patrice]

I have a friend who uses a material which NEVER wraps for basing rather small terrain elements: roof slates!

I would not do it, it’s …quite heavy… But he knows how to work with these and he can find some when he needs them, he is a professional stonemason.

http://www.argad-bzh.fr/argad/en.html
https://www.anargader.net/

[Cacique Caribe]

Patrice

Roof slates!  Wow, that’s one I hadn’t heard before.  Fascinating.  I love how people come up with different solutions to the same obstacles.

Dan
Loads of WIPs: https://www.flickr.com/photos/9593487@N07/albums/with/72157710630529376

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