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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A pi might be overkill and over complicated for your application. You've got to match or convert the Pis 3.3v pins to your servo, programming, libraries ect. An Arduino with with servo library and an RFID reader might be easier to wire and to program.