I once was interested in building composite aircraft and I read and studied up on it. Burt Rutan designed the Long EZ which is foam core wings with graphite and fiberglass epoxy covered. To final cure the wings they take it outside in the sun with black plastic bags wrapped around the wings all day. You have to prop the wings up so they don't droop and take a set that way when it cools. This was for final cure to raise the threshold of temp/strength I believe, but same principal for print thru.