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.
It's a 30mm fan, I've just finished it, it's been raised to fit a fan inside and after I've taken pics I will upload. I've got a 40mm fan version printing right now, I had to move the slots that the ribbon cables come out of to make it fit but you should still be able to feed a ribbon through and plug it in before assembly. I will test fit with M3 x 14mm bolts but I have M4 x 14mm screws on the way that are the right size for the 40mm fans mounting holes.