Why is it that when I run a stl through netfabb's cloud service when

Why is it that when I run a stl through netfabb’s cloud service when I print the object. Half way through the print it gets a stair effect and ruins the print. Other prints; print fine.

Do post a picture, but i’d guess it’s the stepper missing steps (or the driver overheating) and not a problem with the actual .stl.

Sounds like a slic3r bug I’ve seen a few times. It seems to be caused by self-intersections in the STL.

Ya ill throw a pick up here in a bit when I get time. I think I’m going to upgrade slic3r to the newest version tonight and set everything to default.