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.
Sorry, I can not make for that model because I do not own it. The 1.6, 2 and 2.4 versions means the thickness of the guards (archs) measured in millimeters. It is all explained in the thing details page.