Quote Originally Posted by 3dkarma View Post
... For that reason, you would be better off printing the panel, filling and smoothing it, creating a mold from the positive then using that mold to create your panels from something stronger, cheaper and more lightweight (also much faster to produce one your molds are done).
^^ This.

If you're serious about manufacturing your designs then ditch the 3D printing idea. Then rather have a master part machined out of some epoxy board like WB-0691, use that to create a mould out of a resin and then mass produce.

Perhaps invest in an autoclave and vacuum station....