Quote Originally Posted by tigerprinter View Post
Interesting. When you say you've seen the same thing, you mean you've been experiencing this problem too? Have you been able to generate x3g's for any stl's over a couple hundred KB? I don't think Makerware is the problem because it's happening only on the computer, the firmware doesn't seem to be a problem.
Makerware is the name of the older desktop slicing program - it doesn't refer to the printer's firmware.

I have seen that problem on both large and complex jobs. The newer Makerbot Desktop software slices more slowly than the older Makerbot Makerware software. I commonly work with STLs that are megabytes in size, and it does seem to slice them eventually. Cura and Slic3r can often slice in minutes what takes Desktop an hour.

What kind of printer do you have? Is the model proprietary, or somewhere on line? If it's available, I can try slicing it in the older version to compare times.