Cant can,t quite tell by the picture if it,s polycore or cardboard being used !
If it is cardboard , staple 2 sheets together( as in lamination) when ready to put a layer of resin on only do one side and let dry ,so the weight of the resign doesnt destort the project.
Keep us posted
IT IS ALL A RACE AGAINST TIME.
TIME WAITS FOR NO ONE.
HOW FAST CAN YOU GO ?