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.
Thanks for your detailed reply and explanation. Our best advice is for you to use either of the two following software solutions to open the STLs and then cut away the sections you want to print and test.
Both have features to easily cut and divide STL files.