glad you figured it out. I'm not sure I understand, though. I think you are saying that if you show lots of space in sketchup and print with that, it places something invisible in the print out (i.e. the pdf). This wasn't my experience. I just tried the following test:
- make a 1 mm x 1 mm box
- zoom way out in SU
- print to cutepdf. page size 36x60, portrait, 1200 dpi (you can't even see the box in the pfd)
- cropped with the same setting as I posted last night
Results were that it copped to the 1x1mm box no problem. I'm glad you have a solution, though. Sometimes SU does some odd things that don't make sense - sort of a ghost in the machine.
Running without .net and ghostscript is an advantage though I need them for other things so it's a wash for me.