I re-made a project and forgot to check the woods thickness (I set Z from the top). On the original project, designed in Rhino, the thickness matched up well and the skin left was fine. This time the skin is too thick because the wood is thicker. So, what do I do?

In Rhino I exploded the back from the front, but it's a surface and I can't figure out how to get that into Deskproto as a 2D object to cut around the 3D part. Can this be done in DP?

Thanks,
Dan