Hi, im using a chimera hotend on my selfbuild printer.
I use cura, because of its excellent dual extruder capabilities, but i have serios problems when only printing with the second nozzle.
I select the second extruder for the print and it beginns fine. It heats up the bed and the second nozzle, but right bevor the print starts it always retracts the second extruder 16mm, so the print starts without filament in the nozzle. This does not happen when im using the first extruder only, but it does happen when printing with both nozzles and the second one is the first one to be used. I have nothing In the extruder start end end gcode sections, so i dont know how to get rid of this behavior.
i have attached the generated gcod, of a part sliced for the second nozzle, where the unnecessery retraction can be seen:
Any help would be appreciated.
CFDMP_xyzCalibration_cube.gcode