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.
I was able to snap the pieces together without breaking the flanges by inserting the square end of a drill bit that was just the right size in between the flanges as I pressed the pieces together. This prevented them from flexing and breaking off. It makes it more difficult to get them together, but at least they don't break.