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 just saw this comment.
When I first closed the box I couldn't get it open without a lot of force. Now I just don't close it all the way. I had just calibrated my extruder before printing the box. Possibly yours is under-extruding?