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.
That is really weird that its so bad in the middle but not the top or bottom. The top and bottom still have a bunch of little bumps for some reason. This is with a MK3 too? 3 perimeters would not have made a difference. To me it looks like its to hot and not getting enough cooling but that is only a guess. What brand filament and what temp?