Designs Not Printing Correctly

[RobH2]

Ok, so Netfabb is pretty handy. Thanks 'ssayer.'

Chris, I ran your original model through it and Netfabb did fix it but it dropped out those coincident planes I was talking about. That's why it wouldn't print well from the original model. There was technically "zero" thickness on the back because the bottom of the curved grooves were right on top of it.

Here's a shot of the Netfabb fixed mesh. See how it dropped out that area so that it could fix it?