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.
I actually created something similar in tinkercad. I took the OP phone magnet piece and cut off the magnet part that touches the phone and merged it with a clip for my phone to slide into horizontally. Worked out great, also doubles as a phone stand!