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.
Check out this tutorial that shows how to split the model into pieces: http://u.tinkerine.com/en-ca/tutorials/3dmodeling/meshmixer/meshmixer-slicing.html
The infill should be 20% and extruder depends on the printer. Let us know if you plan to print it out :D