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 agree. It doesn't look right. That's what makes them fun!
The curve of the small, round one is exactly a quarter of the length of the bigger "square" gear. When they roll without slipping the sum of their radii is constant (=the distance between the axles). That's the "secret". But it doesn't look like it should work. Haha.