Looking for help with makerbot software!! Duel printer head!!

I am currently designing a duel printer head for the makerbot platform, and I need some help with how the decoder software whould reconize to move the tool head over an millimeter to change colors. I am also intrested in wheter I whould need to do any reprogramming of the motherboard on the makerbot its self.

hintss6 years ago
for multiple extruder on a mendel, they use 2 extruders on a single carriage, and 2 extruder controllers. however, that method only works on repraps, as the makerbots use a different communications protocol with repG