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 had to scale mine to 103% to get the 608 bearings to squeeze in.
I'm using a Taz5 and printing through Cura. To scale up or down: load the model, click on the model and click on the Scale icon that pops up at the bottom. Change your scale for any axis from 1.0 to 1.03 (it'll stay in proportion and all scale together).