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 would think this could be scaled up to 150% with no trouble. Beyond that, there are some overhangs on the internal pins that might start getting droopy. You might be able to scale it down to maybe 80%, but the clearances will get pretty tight and the walls will get a little thin for standard 0.4mm nozzles.