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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It's possible to set the youtube playback speed to .5x if that helps.

You need regular supports that your slicer adds for parts with horizontal overhangs. I only put custom supports for areas where regular supports wouldn't be good enough. But for areas like the casing flanges, those need regular supports.