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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Also, I'm not sure pursuing any legal action would be worth your time or money at this scale, but they are definitely in breach of your CC-Attribution license. You might also consider changing your license to something more strict like CC Non-commercial Share-alike.