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.
The connector between the two parts is designed very tight. It would not hurt to make it a bit looser.
I first had to push both connectors several times individually on their (opposite) counterpart - to be able to establish the final connection between both parts.