Here's a screen capture of my initial try at laying out the 2'x8' sheet of foam in DataCAD:
In the upper right is an approximate layout of the first 2" thick foam sheet, to be cut on on my PhlatPrinter III. I need to redo it with an alignment "rod" in the SketchUp model, that will appear as 1/2" circles, like those shown on the red F2 section. I'll use dowels to align the sections as I glue them together.
I need to confirm the limits of the cutting area -- I think the righthand edge needs a 4" band (on the 2' side) so that the X-axis friction rollers can keep hold of the sheet? And that means the F2-5 red piece will need to be moved up to the second 2'x8' foam sheet.
I also need to separate the doors, hood, wheel skirts, etc. so they can be made as pieces, and I'll have to design hinges for all of them.