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.
Ah yes, my designs are often known as the bane of all slicers. It works with Makerware, and you might try Slic3r. If you ask Leapfrog to make a driver for windows 8.1, they can use our slicer, which I'm helping to write. I guarantee you that one will print all my designs well. I can tell you from experience that writing a reliable slicer is a very tricky math problem.