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.

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Hello! The update notes mention the change. There is an internal wall added so turbulence doesn't stop air from reaching the very tip of the arms.

Hard to see the internal change unless you look down into the opening for the blower fan.