Re: What wood you use???

>Hypo,
there are different grades of plywood, crappier grades warp more,
better grades warp less. All plywood can warp if treated badly, left
outside, in your car, exposed to harsh elements.
But, you really should have no problem if you are an attentive
craftsman. I don't know what woodworking tools you have access to,
but the one thing I would try to do with this project is join the
edges in some kind fashion that would trap light real well, even if a
little shrinking or warping occurred. That way "perfectly-straight"
plywood is much less of a necessity.
Good luck dude!
P.S. Could also be your enviornment, are you by chance in the rainy
pacific northwest? or London? or in the middle of a rainforest?

>I recently make a pinhole camera out of 3/8 inch plywood and found,
>somewhat to my surprise, that I was having troubles with warps and bends
>in the plywood. I had always thought that one of the pluses of plywood
>was that the plies canceled out the wood's tendency to warp.
>
>Therefore I am wondering what woods, or wood-like products, others have
>found to be good for constructing a sturdy, light-tight box.
>
>Thanks,
>Bob
>
>
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Edwin Gendron
Virginia Tech
Residential and Dining Programs Graphics
43 Owens Hall (0223)
Blacksburg, Va. 24061
(540)231-5398
egendron@vt.edu