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.

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Yes, that's intentional. I've printed the fan a few times. I removed all the supports and didn't like the way the part broke off the blades. I feel this looks better. Maybe there's someone that has a better way to remove the supports without scarring or breaking the baldes.