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 think your right? the a1 is a miss label . Its supposed to be the 1a1a1, the 1 is supposed to be the standard initial variant but with so many versions its hard to lock down a definitive reference model so its possible that some details are from different models.