I am currently building a laser-cutter (40w, 1200*600) almost from scratch. Everything is documented here -> the blog
The hardware is pretty done, and I am beginning to test the SmoothieBoard (with the official guide).
I have the 3XC Smoothieboard 1.0.x [OLD VERSION]. And I have only X and Y axis on the machine (one motor for X, two for Y).
The problem is that Y min limit switch is not working. It means that when I use Pronterface to home in Y, the motors are spinning properly, then either the aluminium profile or my finger press the limit switch and it does not stop the motors.
The X axis it working fine (homing OK, switch OK) and I wired the Y min limit switch the same way. I also tested it with a multi-meter. I also used the M119 command to test the switches. I think it’s a wiring/board problem…
Enclosed there is the pic of the wiring, the config file and the M119 result (I am a new user, I cannot put all of that)
default_feed_rate 4000 # Default rate ( mm/minute ) for G1/G2/G3 moves
default_seek_rate 4000 # Default rate ( mm/minute ) for G0 moves
mm_per_arc_segment 0.5 # Arcs are cut into segments ( lines ), this is the length for
alpha_steps_per_mm 80 # Steps per mm for alpha stepper
beta_steps_per_mm 80 # Steps per mm for beta stepper
gamma_steps_per_mm 80 # Steps per mm for gamma stepper
planner_queue_size 32 # DO NOT CHANGE THIS UNLESS YOU KNOW EXACTLY WHAT YOU ARE DOING
acceleration 3000 # Acceleration in mm/second/second.
acceleration_ticks_per_second 1000 # Number of times per second the speed is updated
junction_deviation 0.05 # Similar to the old "max_jerk", in millimeters,
microseconds_per_step_pulse 1 # Duration of step pulses to stepper drivers, in microseconds
base_stepping_frequency 100000 # Base frequency for stepping
x_axis_max_speed 30000 # mm/min
y_axis_max_speed 30000 # mm/min
z_axis_max_speed 300 # mm/min
alpha_step_pin 2.0 # Pin for alpha stepper step signal
alpha_dir_pin 0.5! # Pin for alpha stepper direction
alpha_en_pin 0.4 # Pin for alpha enable pin
alpha_current 1.7 # X stepper motor current
alpha_max_rate 30000.0 # mm/min
beta_step_pin 2.1 # Pin for beta stepper step signal
beta_dir_pin 0.11! # Pin for beta stepper direction
beta_en_pin 0.10 # Pin for beta enable
beta_current 1.7 # Y stepper motor current
beta_max_rate 30000.0 # mm/min
gamma_current 1.7 # Z stepper motor current
gamma_max_rate 300.0 # mm/min
uart0.baud_rate 115200 # Baud rate for the default hardware serial port
second_usb_serial_enable false # This enables a second usb serial port (to have both pronterface
kill_button_enable true # set to true to enable a kill button
kill_button_pin 2.12 # kill button pin. default is same as pause button 2.12 (2.11 is another good choice)
currentcontrol_module_enable true #
extruder.hotend.enable false # Whether to activate the extruder module at all. All configuration is ignored if false
delta_current 1.5 # First extruder stepper motor current
laser_module_enable true # Whether to activate the laser module at all. All configuration is
# ignored if false.
laser_module_pin 2.5 # this pin will be PWMed to control the laser. Only P2.0 - P2.5, P1.18, P1.20, P1.21, P1.23, P1.24, P1.26, P3.25, P3.26
# can be used since laser requires hardware PWM
laser_module_maximum_power 1.0 # this is the maximum duty cycle that will be applied to the laser
laser_module_minimum_power 0.0 # This is a value just below the minimum duty cycle that keeps the laser
# active without actually burning.
laser_module_default_power 0.8 # This is the default laser power that will be used for cuts if a power has not been specified. The value is a scale between
laser_module_pwm_period 20 # this sets the pwm frequency as the period in microseconds
temperature_control.hotend.enable false # Whether to activate this ( "hotend" ) module at all.
temperature_control.bed.enable false #
switch.fan.enable false #
endstops_enable true # the endstop module is enabled by default and can be disabled here
alpha_min_endstop 1.24^ # add a ! to invert if endstop is NO connected to ground
alpha_max_endstop 1.25^ # NOTE set to nc if this is not installed
alpha_homing_direction home_to_min # or set to home_to_max and set alpha_max
alpha_min 0 # this gets loaded after homing when home_to_min is set
alpha_max 200 # this gets loaded after homing when home_to_max is set
beta_min_endstop 1.26^ #
beta_max_endstop 1.27^ #
beta_homing_direction home_to_min #
beta_min 0 #
beta_max 200 #
gamma_min_endstop 1.28^ #
gamma_max_endstop 1.29^ #
gamma_homing_direction home_to_min #
gamma_min 0 #
gamma_max 200 #
alpha_fast_homing_rate_mm_s 50 # feedrates in mm/second
beta_fast_homing_rate_mm_s 50 # "
gamma_fast_homing_rate_mm_s 4 # "
alpha_slow_homing_rate_mm_s 25 # "
beta_slow_homing_rate_mm_s 25 # "
gamma_slow_homing_rate_mm_s 2 # "
alpha_homing_retract_mm 5 # distance in mm
beta_homing_retract_mm 5 # "
gamma_homing_retract_mm 1 # "
zprobe.enable false # set to true to enable a zprobe
panel.enable false # set to true to enable the panel code
panel.menu_offset 0 # some panels will need 1 here
panel.alpha_jog_feedrate 6000 # x jogging feedrate in mm/min
panel.beta_jog_feedrate 6000 # y jogging feedrate in mm/min
panel.gamma_jog_feedrate 200 # z jogging feedrate in mm/min
panel.hotend_temperature 185 # temp to set hotend when preheat is selected
panel.bed_temperature 60 # temp to set bed when preheat is selected
custom_menu.power_on.enable true #
custom_menu.power_on.name Power_on #
custom_menu.power_on.command M80 #
custom_menu.power_off.enable true #
custom_menu.power_off.name Power_off #
custom_menu.power_off.command M81 #
network.enable false # enable the ethernet network services
network.webserver.enable true # enable the webserver
network.telnet.enable true # enable the telnet server
network.ip_address auto # use dhcp to get ip address
Change the pin assignment to use the Y Max port for your Y Min switch. (pretty much swap 1.26 and 1.27 with each other. See if that is a viable workaround.
