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.

Download Now

Report as inappropriate

The difference between the two is on the very bottom have a notch and key to help keep them together. I also wanted the design to be able to print with no supports and also to allow the bearings to be pinched in the middle to allow the spool to roll very easily.