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.
The idea was just a rough design that would need some additional work.
There is also a design called a Brocot perpetual calendar that also looks promising. The clock has 3 dials for the day of the week, day of the month, and month.
This seems like a concept that will be in the back of my mind for a while. Sometimes a really elegant solution emerges.