http://www.shapeways.com/forum/index.php Shapeways: Bring your creativity to life in 3D http://www.shapeways.com/forum/index.php?t=rview&goto=50680&th=10054#msg_50680
It seems there is another step necessary when shelling out a model in Solidworks for 3d printing because of the models I've uploaded ( a simple cube, in a 1cm and one inch size) both prices were the same.

However, on another model I extrude/cut a hole in the base of the 1in cube(with a 1cm wall thickness) and then closed that hole with an extruded wall to create a 1in cube with a 1cm wall thickness. This worked!

Any thoughts?]]> AVSdesign 2012-07-01T20:50:09-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=50682&th=10054#msg_50682 JACANT 2012-07-01T21:16:11-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=50683&th=10054#msg_50683 The wall thickness was chosen with little thought, and I would alter that just as you said to match the selected materials minimum wall thickness.
It would make sense that in my first two attempts, that the cavity was deleted as you mentioned. The last model, the successful one may just be a fluke.
I'll just have to keep experimenting]]> AVSdesign 2012-07-01T21:45:32-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=50684&th=10054#msg_50684 JACANT 2012-07-01T21:57:30-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=50685&th=10054#msg_50685 AVSdesign 2012-07-01T21:59:59-00:00