I am playing with multi-extrusion on smoothieware and SMINTx6 board. Currently I am running three extruders and 3to1 hotend. About print support material things are more or less clear. But the multi-color printing/extrusion is still very open. Does anyone dealing with this? Which slicer is “the best”? For now I am using slic3r.
This is my black&white squirtle from http://www.thingiverse.com/thing:1834292
Original is printed on UM3!
I still have to tune retractions and wipe tower settings. It is not beautiful but it is mine! 
