Dual extrusion single hot end

[moewzy]

Basic Information:

Printer Model: Wanhao d12
MCU / Printerboard: MKS robin nano v1.2
Host / SBC raspberry pi 4
klippy.log
klippy.log (2.3 MB)

Fill out above information and in all cases attach your klippy.log file (use zip to compress it, if too big). Pasting your printer.cfg is not needed
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Describe your issue:

there is only a single Thermistor and sensor and two extruder motors, when I have the 2nd extruder commented out the printer works fine but the minutes i comment in the 2nd extruder it gives me the ACDC error but thats because there is no 2nd thermistor or sensor, if i leave the sensor and heater details out it gives me the error requiring sensor pin type, sensor pin, heater control.

Please assist in getting it running literally the last part of what i need
…

[mjfsch]

Take a look at this post:

Issue with Tai Chi extruder setup

To use the Tai-Chi hotend, youll need to set up your second extruder as an extruder stepper, something like this [extruder_stepper extruder1] extruder: step_pin: PC13 dir_pin: !PF0 enable_pin: !PF1 microsteps: 16 rotation_distance: 7.71 youll then need to need to configure your T0 and T1 macros to change the extruder thats been used [gcode_macro T0] gcode: SYNC_EXTRUDER_MOTION EXTRUDER="extruder" MOTION_QUEUE="extruder" SYNC_EXTRUDER_MOTION EXTRUDER="extruder1" MOTION_QUEUE="" [gcode_macr…

the Tai-Chi hotend is a 2 in 1 out, so this should be similar to what your trying to achieve