MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I use Cura to prepare my print files. I set the layer thickness to 0.2 mm per layer. My nozzle is 0.4mm so the wall thickness needs to be divisible by 0.4 -- so, 1.2 is 3 layers thick. The screen area is design for 0.4 mm thick so that with a 0.2 mm per layer that means you will get 2 passed on the screen area. I hope that helps. Your slicer should figure it out.