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.
You want to print the Hero_Me_OEM_4010_duct_Gen2f.stl with the front face of the cooling duct down flat on the build plate. This will use less supports (use support from build plate only). Hundreds of people have successfully printed this part without issue. the wall thicknesses are correct. See screen shot from Simplify3D.