Dual Extrusion NEX Pi B+ case.
The files are separated into 3 prints:
Top (White / Black)
Bottom (Grey / Black)
Lid (White / Red)
To set up the dual print, import both files that make up a section.
Do not "move to platform" when adding file to makerware.
Select both objects, then move if needed.
Assign correct nozzles to each object.
Export as desired.