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.
More info: The lower the better, but not so low as to catch on the printed parts. I set mine to about 1.2mm - 1.4mm above the bed. There are some duct leveling helpers included with one of the remixes here: https://www.thingiverse.com/thing:3481256