Klipper configuration for Ender 3 with MKS Gen L board

printer.cfg

# Ender 3
# MKS Gen L board (ATmega 2560)
# Titan Extruder (3:1 ratio)

# 1. Change serial path
# 2. Make sure "rotation_distance" in the "extruder" section is correct or modify
# 3. Make sure "dir_pin" is setup correctly in the "extruder" section
# 4. Make sure hotend fan is connected to the E1 connector (or change in the "heater_fan" section)
# 5. Have fun

[mcu]
serial: /dev/serial/by-id/usb-1a86_USB2.0-Serial-if00-port0 # Change this
pin_map: arduino

[printer]
kinematics: cartesian
max_velocity: 300
max_accel: 3000
max_z_velocity: 20
max_z_accel: 100

[fan] # Part cooling fan
pin: ar9

[heater_fan hotend_fan] # Hotend cooling fan
pin: ar7 # Connected to the E1 connector
heater: extruder
heater_temp: 50.0 # Stop fan below 50C
fan_speed: 1.0

[stepper_x]
step_pin: ar54
dir_pin: ar55
enable_pin: !ar38
microsteps: 16
rotation_distance: 40
endstop_pin: ^ar3
position_endstop: 0
position_max: 220
homing_speed: 45

[stepper_y]
step_pin: ar60
dir_pin: ar61
enable_pin: !ar56
microsteps: 16
rotation_distance: 40
endstop_pin: ^ar14
position_endstop: 0
position_max: 220
homing_speed: 45

[stepper_z]
step_pin: ar46
dir_pin: !ar48
enable_pin: !ar62
microsteps: 16
rotation_distance: 8
endstop_pin: ^ar18
position_endstop: 0.5
position_max: 400
homing_speed: 45

[extruder]
pressure_advance: 0.25
step_pin: ar26
dir_pin: !ar28 # Inversed. Default: ar28
enable_pin: !ar24
microsteps: 16
rotation_distance: 8 # Works with 3:1 geared extruders. Default: 34.4
nozzle_diameter: 0.400 # Make sure this matches your nozzle
filament_diameter: 1.750
heater_pin: ar10
sensor_type: EPCOS 100K B57560G104F
sensor_pin: analog13
control: pid
pid_Kp: 24.255
pid_Ki: 1.064
pid_Kd: 138.254
min_temp: 0
max_temp: 270

[heater_bed]
heater_pin: ar8
sensor_type: EPCOS 100K B57560G104F
sensor_pin: analog14
control: pid
pid_Kp: 690.34
pid_Ki: 111.47
pid_Kd: 1068.83
min_temp: 0
max_temp: 130

[verify_heater extruder]
heating_gain: 0.75 # Default: 2.0
check_gain_time: 90
hysteresis: 5
max_error: 200