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.
Every slicing app and machine will be a bit different. On my Replicator 2 it was just under 2 hours... on my 5th Gen Replicator a bit over two hours (same print settings applied). Different slicing apps run machines at different speeds...
I hope this provides an adequate guide.