I am in the process of creating a large-scale printer that will have dual extrusion. My question is how am I able to swap my main extruder for the secondary extruder at either a certain length of material or at a set layer height?
If you split the object in 2 parts (at a certain height) you can allocate a different extruder to each part in Cura.
In simplify 3D you can create 2 processes, 1 to a certain height, the other starting at that height, and allocate a extruder to each process.
Would be nice to get this functionality in Cura also some day....