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.
The model is intended for printing in vase mode. In vase mode, you specify how many top/bottom layers to use. So for this part, just choose zero for the number of top layers. Here’s a link to more about printing with vase mode: https://m.all3dp.com/2/cura-vase-mode-all-you-need-to-know/