Thanks Si.
The board is on very thin cardboard. That is indeed the reason for the warping. But with with some heavier peaces of wood on the inside I can fix that issue.
I made the building about 15 years back. At that time I didn't have much experience in scratch building and also didn't want to waste material (money) on a proper constructionbase.
AlwinLast edited on Wed Feb 11th, 2015 06:37 pm by Alwin
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