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.
Once you know where your pivot points are, you can use the fact that all the leafs meet in the center at the top. Therefore, the radius will be the distance from your pivot point to the point at the center of the top. Make sense?