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.
Nice! I too have been tinkering with a printer 3D printer (Dollo3D) which I've got working quite nicely. Actually 2 now. I did have a look at similar bearings at one point as option (even designed a ball screw using air soft pellets), but so far Dollo mainly uses slides. When the mating surfaces are different (PLA and PETG), there seems to be very little wear. Never thought that TPU could be used as a timing belt, might have a try with that.