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'm not sure about number of layers; I'll re-slice the .STL later today and check. But, I can tell you that layer thicknesses of 0.1 and 0.15 will work well. Also, they are supposed to be easy to bend.
EDIT: The actual "blade" part is 3 layers thick, while the "pin", or "nipple" is 13 layers thick. This is assuming your printer is set to 0.15mm thick layers.