Ender 5 Max DXC and K2 plus upgrade cage

print it upside down, for the most important surface of the hot end interface, the horizontal top surface. PPA-cf material was my choice for best stiffness and heat resistance.

You will need to modify your front and back covers.

You will need to extend the K2+ thermistor and heater wiring to reach the board.

Paste text below in your config in the correct positions for the termister to read correctly, 350 °C, and run out sensor to work on the extruder, (see pictures for reference)

[filament_switch_sensor filament_sensor]

switch_pin:^!nozzle_mcu:PA1

pause_on_runout: true

# runout_gcode: PAUSE

[thermistor my_thermistor]

temperature1:25

resistance1:260000

temperature2:220

resistance2:738

temperature3:350

resistance3:98

[extruder]

max_extrude_only_distance:1000

max_extrude_cross_section:80

pressure_advance = 0.04

step_pin: nozzle_mcu: PB5

dir_pin: nozzle_mcu: PB4 #!nozzle_mcu: PB4

enable_pin: !nozzle_mcu: PB2

microsteps: 16

# gear_ratio: 42:12

rotation_distance: 6.72 #7.53

nozzle_diameter: 0.400

filament_diameter: 1.750

heater_pin: nozzle_mcu: PB8

sensor_type: my_thermistor

sensor_pin: nozzle_mcu: PA0

#control = pid

#pid_kp = 20.145

#pid_ki = 1.919

#pid_kd = 52.881

min_temp: 0

max_temp: 380