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.
Use a wire connection is a great idea for even cheaper solution :)
If you already have something in mind please do modify the stp files and publish a remix! But I can also modify it to you if you like.
Why a relay?