# This file contains common pin mappings for the BIGTREETECH SKR # MINI 2.0. To use this config, the firmware should be compiled for # the STM32F103 with a "28KiB bootloader". Also select "enable extra # low-level configuration options" and configure "GPIO pins to set # at micro-controller startup" to "!PA14". # The "make flash" command does not work on the SKR mini. 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 with that SD card. ## Voron Design VORON 0.1 SKR Mini E3 V2 config ## *** THINGS TO CHANGE/CHECK: *** ## MCU path [mcu] section ## Z and Extruder motor currents [tmc2209 stepper_*] sections. Uncomment the stepper motor you have ## Full steps per rotation for Extruder [extruder] section ## Thermistor types [extruder] and [heater_bed] sections - See https://www.klipper3d.org/Config_Reference.html#common-thermistors for common thermistor types ## Extruder motor currents [extruder] section ## PID tune [extruder] and [heater_bed] sections ## Fine tune E steps [extruder] section ## For more info check https://docs.vorondesign.com/build/startup/#v0 [mcu] ##################################################################### # Obtain definition by "ls -l /dev/serial/by-id/" ##################################################################### serial: /dev/serial/by-id/usb-Klipper_stm32f103xe_REPLACE_WITH_YOUR_VALUE [printer] kinematics: corexy max_velocity: 200 max_accel: 2000 max_z_velocity: 15 max_z_accel: 45 square_corner_velocity: 6.0 ##################################################################### # X/Y Stepper Settings ##################################################################### [stepper_x] step_pin: PB13 ## Refer to https://docs.vorondesign.com/build/startup/#v0 dir_pin: PB12 # Check motor direction in link above. If inverted, add a ! before PB12 enable_pin: !PB14 rotation_distance: 40 microsteps: 32 full_steps_per_rotation: 200 # Set to 400 for 0.9° degree stepper motor, 200 is for 1.8° stepper motors endstop_pin: ^PC0 position_endstop: 120 position_max: 120 homing_speed: 50 # Can be increased after initial setup, Max 100 homing_retract_dist: 5 homing_positive_dir: true [tmc2209 stepper_x] uart_pin: PC11 tx_pin: PC10 uart_address: 0 interpolate: False run_current: 0.5 sense_resistor: 0.110 stealthchop_threshold: 0 # Set to 999999 to turn stealthchop on, and 0 to use spreadcycle [stepper_y] step_pin: PB10 ## Refer to https://docs.vorondesign.com/build/startup/#v0 dir_pin: PB2 # Check motor direction in link above. If inverted, add a ! before PB2 enable_pin: !PB11 rotation_distance: 40 microsteps: 32 full_steps_per_rotation: 200 # Set to 400 for 0.9° degree stepper motor, 200 is for 1.8° stepper motors endstop_pin: ^PC1 position_endstop: 120 position_max: 120 homing_speed: 50 # Can be increased after initial setup, Max 100 homing_retract_dist: 5 homing_positive_dir: true [tmc2209 stepper_y] uart_pin: PC11 tx_pin: PC10 uart_address: 2 interpolate: False run_current: 0.5 sense_resistor: 0.110 stealthchop_threshold: 0 # Set to 999999 to turn stealthchop on, and 0 to use spreadcycle ##################################################################### # Z Stepper Settings ##################################################################### [stepper_z] step_pin: PB0 dir_pin: !PC5 # Remove the ! before PC5 if motor direction is inverted. enable_pin: !PB1 rotation_distance: 8 # For T8x8 integrated lead screw microsteps: 32 endstop_pin: ^PC2 position_endstop: -0.10 position_max: 120 position_min: -1.5 homing_speed: 10 second_homing_speed: 3.0 homing_retract_dist: 3.0 [tmc2209 stepper_z] uart_pin: PC11 tx_pin: PC10 uart_address: 1 interpolate: False ## For OMC (StepperOnline) 17LS13-0404E-200G 0.4A #run_current: 0.2 ## For LDO-42STH25-1004CL200E 1.0A #run_current: 0.37 sense_resistor: 0.110 stealthchop_threshold: 0 # Set to 999999 to turn stealthchop on, and 0 to use spreadcycle ##################################################################### # Extruder ##################################################################### [extruder] step_pin: PB3 dir_pin: PB4 # Add ! if moving opposite direction enable_pin: !PD2 #full_steps_per_rotation: 200 # Set to 200 for LDO 1.8° stepper motor, and set to 400 for OMC(StepperOnline) 0.9° stepper motor rotation_distance: 22.23 # See calibrating rotation_distance on extruders doc gear_ratio: 50:10 # For Mini Afterburner microsteps: 32 nozzle_diameter: 0.400 filament_diameter: 1.750 heater_pin: PC8 ## Check what thermistor type you have. See https://www.klipper3d.org/Config_Reference.html#common-thermistors for common thermistor types. ## Use "Generic 3950" for NTC 100k 3950 thermistors #sensor_type: sensor_pin: PA0 control: pid # Do PID calibration after initial checks pid_Kp: 28.182 pid_Ki: 1.978 pid_Kd: 100.397 min_temp: 0 max_temp: 270 min_extrude_temp: 170 max_extrude_only_distance: 150 max_extrude_cross_section: 0.8 pressure_advance: 0.0 # See tuning pressure advance doc pressure_advance_smooth_time: 0.040 [tmc2209 extruder] uart_pin: PC11 tx_pin: PC10 uart_address: 3 interpolate: False ## For OMC (StepperOnline) 14HR07-1004VRN 1A 0.9° #run_current: 0.5 # for OMC 14HR07-1004VRN rated at 1A ## For LDO LDO 36STH17-1004AHG 1A 1.8° #run_current: 0.3 # for LDO 36STH17-1004AHG ## For LDO LDO 36STH20-1004AHG 1A 1.8° #run_current: 0.6 # for LDO 36STH20-1004AHG sense_resistor: 0.110 stealthchop_threshold: 0 # Set to 0 for spreadcycle, avoid using stealthchop on extruder ##################################################################### # Bed Heater ##################################################################### [heater_bed] heater_pin: PC9 ## Check what thermistor type you have. See https://www.klipper3d.org/Config_Reference.html#common-thermistors for common thermistor types. ## Use "Generic 3950" for Keenovo heaters #sensor_type: sensor_pin: PC3 smooth_time: 3.0 #max_power: 0.6 # Only needed for 100w pads min_temp: 0 max_temp: 120 control: pid # Do PID calibration after initial checks pid_kp: 68.453 pid_ki: 2.749 pid_kd: 426.122 ##################################################################### # Fan Control ##################################################################### [heater_fan hotend_fan] pin: PC7 max_power: 1.0 kick_start_time: 0.5 heater: extruder heater_temp: 50.0 #fan_speed: 1.0 # You can't PWM the delta fan unless using blue wire [fan] pin: PC6 max_power: 1.0 kick_start_time: 0.5 # Depending on your fan, you may need to increase this value if your fan will not start off_below: 0.13 cycle_time: 0.010 ##################################################################### # Homing and Gantry Adjustment Routines ##################################################################### [idle_timeout] timeout: 1800 [safe_z_home] home_xy_position: 120,120 speed: 50.0 z_hop: 5 ## To be used with BED_SCREWS_ADJUST [bed_screws] screw1: 60,5 screw1_name: front screw screw2: 5,115 screw2_name: back left screw3: 115,115 screw3_name: back right ##################################################################### # Macros ##################################################################### [gcode_macro PRINT_START] # Use PRINT_START for the slicer starting script - please customize for your slicer of choice gcode: G28 ; home all axes G90 ; absolute positioning G1 Z20 F3000 ; move nozzle away from bed [gcode_macro PRINT_END] # Use PRINT_END for the slicer ending script - please customize for your slicer of choice gcode: M400 ; wait for buffer to clear G92 E0 ; zero the extruder G1 E-4.0 F3600 ; retract filament G91 ; relative positioning # Get Boundaries {% set max_x = printer.configfile.config["stepper_x"]["position_max"]|float %} {% set max_y = printer.configfile.config["stepper_y"]["position_max"]|float %} {% set max_z = printer.configfile.config["stepper_z"]["position_max"]|float %} # Check end position to determine safe direction to move {% if printer.toolhead.position.x < (max_x - 20) %} {% set x_safe = 20.0 %} {% else %} {% set x_safe = -20.0 %} {% endif %} {% if printer.toolhead.position.y < (max_y - 20) %} {% set y_safe = 20.0 %} {% else %} {% set y_safe = -20.0 %} {% endif %} {% if printer.toolhead.position.z < (max_z - 2) %} {% set z_safe = 2.0 %} {% else %} {% set z_safe = max_z - printer.toolhead.position.z %} {% endif %} G0 Z{z_safe} F3600 ; move nozzle up G0 X{x_safe} Y{y_safe} F20000 ; move nozzle to remove stringing TURN_OFF_HEATERS M107 ; turn off fan G90 ; absolute positioning G0 X60 Y{max_y} F3600 ; park nozzle at rear [gcode_macro LOAD_FILAMENT] gcode: M83 ; set extruder to relative G1 E30 F300 ; load G1 E15 F150 ; prime nozzle with filament M82 ; set extruder to absolute [gcode_macro UNLOAD_FILAMENT] gcode: M83 ; set extruder to relative G1 E10 F300 ; extrude a little to soften tip G1 E-40 F1800 ; retract some, but not too much or it will jam M82 ; set extruder to absolute