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Other Stuff => Workbench => Tutorials => Topic started by: Doug ex-em4 on 19 February 2011, 10:58:43 AM

Title: Roads going banana shaped - Help...!
Post by: Doug ex-em4 on 19 February 2011, 10:58:43 AM

I made some roads by sticking black emery paper to thick card and doing a bit of dry-brushing. They look OK considering their simplicity and speed of production. BUT, they've gone banana shaped. Apparently, it's due to the pva glue shrinking after drying.

So, any suggestions for flattening them out? Glue them to hardboad or ply wood-maybe?

Also, whilst I'm soliciting advice, has anyone any suggestions for how to keep the pieces butted-up whilst in use?

Thanks

Doug

Title: Re: Roads going banana shaped - Help...!
Post by: Dewbakuk on 19 February 2011, 11:02:11 AM

Glue some paper to the other side. That'll shrink and pull it back flat. Ideally it should be done at the same time as the other side but afterwards should still be effective.


*edited for bad spelling*

Title: Re: Roads going banana shaped - Help...!
Post by: widgren on 20 February 2011, 02:26:51 PM

Quote from: Dewbakuk on 19 February 2011, 11:02:11 AM

Glue some paper to the other side. That'll shrink and pull it back flat. Ideally it should be done at the same time as the other side but afterwards should still be affective.

seconded

Title: Re: Roads going banana shaped - Help...!
Post by: Christian on 10 March 2011, 10:40:17 AM

Not too much glue, and putting something to weigh the road down while it dries?

Title: Re: Roads going banana shaped - Help...!
Post by: 6milPhil on 11 March 2011, 12:14:12 AM

I clamp everything that I use PVA on, keeps it flat and no more of that horror of finding your piece of road has become a hill. Typically I use 3mm MDF, and even that'll warp given the chance.  :-[

Title: Re: Roads going banana shaped - Help...!
Post by: mattblackgod on 19 June 2011, 10:58:37 PM

One recent roads I made like this I painted the bottom with PVA glue watered down with poster paint. A couple of coats should do the trick.

Title: Re: Roads going banana shaped - Help...!
Post by: Sangennaru on 20 June 2011, 04:36:51 PM

Quote from: Christian on 10 March 2011, 10:40:17 AM

Not too much glue, and putting something to weigh the road down while it dries?

that's the best way. if you already did them, just wet them a bit and make them dry again! :)