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 main center rod was a little tight but after cranking up the center piece inside the rotors, it rotated great. Make sure the black pieces inside the rotors have some room to spin or the engine will not rotate correctly. i thought it was supposed to be a tight fit and had to reprint one of the rotors after having a piece get stuck.