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.
Thanks for your kind words!!
Yeah I love this knurling library!! I actually used this code for the knurling: http://www.thingiverse.com/thing:32122 -- unfortunately I've only been able to use it for cylindrical knurling, though there has to be a way to get flat knurling too.
I'm still working on new spinner varieties every day, we'll be posting an update soon with new versions along with the OpenSCAD for optimal remixing.