trad_rack_ercf.cfg

[trad_rack]
selector_max_velocity: 400
selector_max_accel: 10000
toolhead_fil_sensor_pin: ^M7_STOP
sync_to_extruder: True
lane_count: 4
lane_spacing: 16.712500
servo_down_angle: 0.0
servo_up_angle: 131.0
toolhead_unload_speed: 20
extruder_load_speed: 20
toolhead_sense_speed: 20
selector_unload_length: 17.5
bowden_length: 600.0
extruder_load_length: 60
hotend_load_length: 6.0
toolhead_unload_length: 40.0
buffer_pull_speed: 300.0    # increase this to 300+ once you are ready
                            # (but some motors may not be able to handle this).


[stepper_tr_selector]
# stepper connected to SELECTOR, endstop to ENDSTOP
step_pin: tr:S_STEP
dir_pin: !tr:S_DIR
enable_pin: !tr:S_EN
rotation_distance: 40
microsteps: 16
full_steps_per_rotation: 200
endstop_pin: ^tr:gpio20
position_min: -0.062
position_endstop: -0.062
position_max: 50.138
homing_speed: 30

[stepper_tr_fil_driver]
# stepper connected to GEAR, selector filament sensor to ENCODER
step_pin: tr:gpio7
dir_pin: tr:gpio8
enable_pin: !tr:gpio6
rotation_distance: 22.67895
gear_ratio: 50:17
microsteps: 16
full_steps_per_rotation: 200
endstop_pin: ^tr:gpio15  # selector filament sensor
position_min: -5000
position_endstop: 0
position_max: 5000
homing_positive_dir: False

[tmc2209 stepper_tr_selector]
# connected to SELECTOR
uart_pin: tr:gpio0
interpolate: True
run_current: 0.63   # for a 1A peak motor
sense_resistor: 0.110

[tmc2209 stepper_tr_fil_driver]
# connected to GEAR
uart_pin: tr:gpio9
interpolate: False
run_current: 1.27   # for a 2A peak motor
sense_resistor: 0.110

[servo tr_servo]
# connected to SERVO
pin: tr:gpio21
maximum_servo_angle: 131
minimum_pulse_width: 0.000700
maximum_pulse_width: 0.002200

[extruder]
max_extrude_only_distance: 200
max_extrude_cross_section: 100

# Macros
[gcode_macro ACTIVATE_EXTRUDER]
rename_existing: ACTIVATE_EXTRUDER.1
gcode:
    {% set EXTRUDER = params.EXTRUDER|default('extruder')|lower|replace('extruder', '') %}
    {% if EXTRUDER == '' %}
        {% set EXTRUDER = '0' %}
    {% endif %}
    TR_LOAD_TOOLHEAD LANE={EXTRUDER}