[stupot]

Hmmm first time i've read this thread and i find it interesting. Being a yacht carpenter we are constantly creating or moulding curves, more often than not out of ply.

The above design is a good starting point , build yourself a L shape stud work frame then construct your plywood platform base and upright backing out of 12mm ply leaving them both short. This space is what your going to build your curve into the shorter you leave them the larger your curve. I would build a series of upright plywood ribs with the profile of the curve you require, 12mm or 15mm ply would work for the ribs, obviously if you opt for 12mm you would need more upright ribs. Then use 4mm short-grain ply (it is very flexible) to build up the curve probably 2 or 3 sheets would be strong enough sandwich these together with a fast bonding PVA glue. The amount of layers really is determined by the thickness of your base and backing ply building the curve up until it is flush with the base and backing board (could even use 2mm aircraft ply if the last layer is to thick). I would then sand, fill and then spray the whole thing for a perfect finish.

I know all that is a bit vague and without diagrams its probably hard to visualise, i guess its quite clear in my head but i dont know how well i've relayed it.