Quote Originally Posted by Roxy View Post
at 1:30 into the video Prusa talks about how they handle the 4 extruder problem. He did say they were using RAMPS boards (which only have 2 extruders). He holds up a proto-type board (with 'blue wires' which in this case are red) and says that board converts the 2 extruder system into a 4 extruder system.
Figure much thanks