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.
In addition to cutting the tabs, you also have to free up the outer sphere which rotates relative to the base. The easiest way do do this is to stick a very small flat bladed screw driver into the gap between the outer sphere and the studded base ring and pry back gently, working your way around the ring. You should hear the parts breaking loose as you work your way around. I'll post a photo of this shortly.