core.cfg

# This file contains common pin mappings for the BIGTREETECH SKR mini
# E3 v3.0. To use this config, the firmware should be compiled for the
# STM32G0B1 with a "8KiB bootloader" and USB communication/USART.

# The "make flash" command does not work on the SKR mini E3. Instead,
# after running "make", copy the generated "out/klipper.bin" file to a
# file named "firmware.bin" on an SD card and then restart the SKR
# mini E3 with that SD card.

# See docs/Config_Reference.md for a description of parameters.

######################################################################
##                          STEPPER DRIVERS                         ##     
######################################################################

[stepper_x]
step_pin: PB13
dir_pin: !PB12
enable_pin: !PB14
microsteps: 16
rotation_distance: 40
endstop_pin: ^PC0
position_endstop: 350
position_max: 350
homing_speed: 150

[tmc2209 stepper_x]
uart_pin: PC11
tx_pin: PC10
uart_address: 0
#run_current: 0.580
run_current: 0.9
stealthchop_threshold: 999999

[stepper_y]
step_pin: PB10
dir_pin: !PB2
enable_pin: !PB11
microsteps: 16
rotation_distance: 40
endstop_pin: ^PC1
position_endstop: 350
position_max: 350
homing_speed: 150

[tmc2209 stepper_y]
uart_pin: PC11
tx_pin: PC10
uart_address: 2
#run_current: 0.580
run_current: 0.75
stealthchop_threshold: 999999

[stepper_z]
step_pin: PB0
dir_pin: !PC5
enable_pin: !PB1
microsteps: 16
rotation_distance: 4
# endstop_pin: ^PC2
# position_endstop: 0.0
endstop_pin: probe:z_virtual_endstop
position_max: 400
position_min: -5
homing_speed: 10.0

[tmc2209 stepper_z]
uart_pin: PC11
tx_pin: PC10
uart_address: 1
#run_current: 0.580 #original setting
run_current: 0.9
stealthchop_threshold: 999999

[extruder]
step_pin: PB3
dir_pin: !PB4
enable_pin: !PD1
microsteps: 16
rotation_distance: 23.242
full_steps_per_rotation: 200
gear_ratio: 36:12
#gear_ratio: 3:1
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: PC8
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PA0
#control = pid
#pid_kp = 28.906
#pid_ki = 2.007
#pid_kd = 104.060
#min_extrude_temp: 5 # !!!ONLY FOR EXTRUDER CALIBRATION!!!
min_temp: 0
max_temp: 300
max_extrude_only_distance: 200
#pressure_advance: .08
pressure_advance_smooth_time: 0.050
max_extrude_cross_section: 5

[tmc2209 extruder]
uart_pin: PC11
tx_pin: PC10
uart_address: 3
run_current: 0.650
stealthchop_threshold: 999999

[board_pins]
aliases:
    # EXP1 header
    EXP1_1=PB5,  EXP1_3=PA9,   EXP1_5=PA10, EXP1_7=PB8, EXP1_9=<GND>,
    EXP1_2=PA15, EXP1_4=<RST>, EXP1_6=PB9,  EXP1_8=PD6, EXP1_10=<5V>