Hi, I do have 2 extruders selected in the host print settings. However, i see now where the problem is coming from. The 2nd extruder goes away if the check box "Printer has a Mixing Extruder (one nozzle for all colors)" is checked. I don't know what the intent was but i read that as fitting my machine. I only have one temperature control for the hot end but two motors to control for different materials for the filament extruders. So that's two colors/materials driven independently, but a single hot end nozzle that they mix in and print out of. I still have two independent extruders motors driving two different filaments so it seems like the 2nd extruder option should still be available.
