Error “MIXING EXTRUDER currently only supports one extruder.” Hi I have just built Flsun Chimera i3 3d printer and am having trouble with same issue with above error message I am trying to change Arduino to support 2 x Hot ends with 2 x stepper motors. I have changed motherboard to BOARD_MKS_BASE ok, but as soon as I try to change the number of Extruders to 2, I get error after checking configuby Terrytronic - General