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.
Make sure the printing temp isn't higher than it needs to be, and be sure that retraction is set to at least 2 mm for a direct drive extruder. I use 2.5 mm for my retraction. That should solve it.