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.
Hi JackJ106 - I had a similar problem that popped up suddenly. If it is not a connector issue (you can use a multimeter to check your plug orientations), the only solution that worked for me was re-flashing the firmware, which sounds scary but it is not too bad. You can check to see if your motor is alright by swapping the plug on the board with one of the other motors and see how it behaves. Several times I thought I killed a motor when really it was just a software problem (my printer is 2 years old and has seen heavy use).
If a firmware update doesn't fix things, the worst you will have to do is get another Printrboard. I am on my third.