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Homes correctly, but Z axis messes up when printing
Posted: Thu Jun 18, 2015 9:45 pm
by mlapaglia
smoothieboard 4x configured for a delta printer
Here's a quick pic: mattlapaglia dot com /wp-content/uploads/2015/02/IMG_20150208_223541 (dot) jpg
The three towers home correctly towards the max end stops. Moving the effector around manually works as expected. When I try to print an object the gamma axis always jams upwards while the other two axis perform normally.
I've switched the end stops and motors around to make sure it wasn't anything with those particular components.
Here is some gcode from Cura, set with the "hardware center at 0, 0" checked in the config:
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Code: Select all
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M190 S70.000000
M109 S230.000000
;Sliced at: Thu 18-06-2015 15:31:36
;Basic settings: Layer height: 0.2 Walls: 1 Fill: 10
;Print time: 2 hours 30 minutes
;Filament used: 3.527m 27.0g
;Filament cost: None
;M190 S70 ;Uncomment to add your own bed temperature line
;M109 S230 ;Uncomment to add your own temperature line
G21 ;metric values
G90 ;absolute positioning
M107 ;start with the fan off
G28 ;move to endstops
G92 E0 ;zero the extruded length
G1 F200 E3 ;extrude 3mm of feed stock
G92 E0 ;zero the extruded length again
G1 F9000
;Put printing message on LCD screen
M117 Printing...
;Layer count: 201
;LAYER:0
M107
G0 F9000 X22.208 Y-17.235 Z0.300
;TYPE:SKIRT
G1 F1200 X22.719 Y-16.569 E0.01974
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If I execute the G0 command manually, it performs as expected. When I execute the actual gcode file though, the gamma axis pushes up into the end stop, forcing me to shut off the machine.
I upgraded to the latest stable firmware and started from a fresh config file for the delta style printers.
Any help would be appreciated!
Re: Homes correctly, but Z axis messes up when printing
Posted: Fri Jun 19, 2015 8:50 am
by KAS
Can you post your config file? Also have you checked M119, is showing the correct tower end stop is working when manually holding the switch?
Re: Homes correctly, but Z axis messes up when printing
Posted: Fri Jun 19, 2015 9:01 am
by mlapaglia
Code: Select all
# NOTE Lines must not exceed 132 characters
# Robot module configurations : general handling of movement G-codes and slicing into moves
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
# these segments. Smaller values mean more resolution,
# higher values mean faster computation
#mm_per_line_segment 0.5 # Lines can be cut into segments ( not useful with cartesian
# coordinates robots ).
delta_segments_per_second 100 # for deltas only same as in Marlin/Delta, set to 0 to disable
# and use mm_per_line_segment
# Arm solution configuration : Cartesian robot. Translates mm positions into stepper positions
arm_solution linear_delta # selects the delta arm solution
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
arm_length 420.68 # this is the length of an arm from hinge to hinge
arm_radius 211.250 # this is the horizontal distance from hinge to hinge
# when the effector is centered
# Planner module configuration : Look-ahead and acceleration configuration
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,
# see https://github.com/grbl/grbl/blob/master/planner.c#L409
# and https://github.com/grbl/grbl/wiki/Configuring-Grbl-v0.8
# Lower values mean being more careful, higher values means being
# faster and have more jerk
#minimum_planner_speed 0.0 # sets the minimum planner speed in mm/sec
# Stepper module configuration
microseconds_per_step_pulse 1 # Duration of step pulses to stepper drivers, in microseconds
base_stepping_frequency 100000 # Base frequency for stepping
# Cartesian axis speed limits
x_axis_max_speed 30000 # mm/min
y_axis_max_speed 30000 # mm/min
z_axis_max_speed 30000 # mm/min
# Stepper module pins ( ports, and pin numbers, appending "!" to the number will invert a pin )
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 1.5 # 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 1.5 # Y stepper motor current
beta_max_rate 30000.0 # mm/min
gamma_step_pin 2.2 # Pin for gamma stepper step signal
gamma_dir_pin 0.20 # Pin for gamma stepper direction
gamma_en_pin 0.19 # Pin for gamma enable
gamma_current 1.5 # Z stepper motor current
gamma_max_rate 30000.0 # mm/min
# Serial communications configuration ( baud rate default to 9600 if undefined )
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
# and a terminal connected)
#leds_disable true # disable using leds after config loaded
#msd_disable false # disable the MSD (USB SDCARD) when set to true
# Extruder module configuration
extruder.hotend.enable true # Whether to activate the extruder module at all. All configuration is ignored if false
extruder.hotend.steps_per_mm 92.4 # Steps per mm for extruder stepper
extruder.hotend.default_feed_rate 600 # Default rate ( mm/minute ) for moves where only the extruder moves
extruder.hotend.acceleration 500 # Acceleration for the stepper motor, as of 0.6, arbitrary ratio
extruder.hotend.max_speed 70 # mm/s
extruder.hotend.step_pin 2.3 # Pin for extruder step signal
extruder.hotend.dir_pin 0.22 # Pin for extruder dir signal
extruder.hotend.en_pin 0.21 # Pin for extruder enable signal
# extruder offset
#extruder.hotend.x_offset 0 # x offset from origin in mm
#extruder.hotend.y_offset 0 # y offset from origin in mm
#extruder.hotend.z_offset 0 # z offset from origin in mm
# firmware retract settings when using G10/G11, these are the defaults if not defined, must be defined for each extruder if not using the defaults
#extruder.hotend.retract_length 3 # retract length in mm
#extruder.hotend.retract_feedrate 45 # retract feedrate in mm/sec
#extruder.hotend.retract_recover_length 0 # additional length for recover
#extruder.hotend.retract_recover_feedrate 8 # recover feedrate in mm/sec (should be less than retract feedrate)
#extruder.hotend.retract_zlift_length 0 # zlift on retract in mm, 0 disables
#extruder.hotend.retract_zlift_feedrate 6000 # zlift feedrate in mm/min (Note mm/min NOT mm/sec)
delta_current 1.5 # First extruder stepper motor current
# Second extruder module configuration example
#extruder.hotend2.enable true # Whether to activate the extruder module at all. All configuration is ignored if false
#extruder.hotend2.steps_per_mm 140 # Steps per mm for extruder stepper
#extruder.hotend2.default_feed_rate 600 # Default rate ( mm/minute ) for moves where only the extruder moves
#extruder.hotend2.acceleration 500 # Acceleration for the stepper motor, as of 0.6, arbitrary ratio
#extruder.hotend2.max_speed 50 # mm/s
#extruder.hotend2.step_pin 2.8 # Pin for extruder step signal
#extruder.hotend2.dir_pin 2.13 # Pin for extruder dir signal
#extruder.hotend2.en_pin 4.29 # Pin for extruder enable signal
#extruder.hotend2.x_offset 0 # x offset from origin in mm
#extruder.hotend2.y_offset 25.0 # y offset from origin in mm
#extruder.hotend2.z_offset 0 # z offset from origin in mm
#epsilon_current 1.5 # Second extruder stepper motor current
# Laser module configuration
laser_module_enable false # 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
# can be used since laser requires hardware PWM
#laser_module_max_power 0.8 # this is the maximum duty cycle that will be applied to the laser
#laser_module_tickle_power 0.0 # this duty cycle will be used for travel moves to keep the laser
# active without actually burning
#laser_module_pwm_period 20 # this sets the pwm frequency as the period in microseconds
# Hotend temperature control configuration
temperature_control.hotend.enable true # Whether to activate this ( "hotend" ) module at all.
# All configuration is ignored if false.
temperature_control.hotend.thermistor_pin 0.23 # Pin for the thermistor to read
temperature_control.hotend.heater_pin 2.7 # Pin that controls the heater
temperature_control.hotend.thermistor EPCOS100K # see http://smoothieware.org/temperaturecontrol#toc5
#temperature_control.hotend.beta 4066 # or set the beta value
temperature_control.hotend.set_m_code 104 #
temperature_control.hotend.set_and_wait_m_code 109 #
temperature_control.hotend.designator T #
temperature_control.hotend.p_factor 42.8 # permanently set the PID values after an auto pid
temperature_control.hotend.i_factor 2.210 #
temperature_control.hotend.d_factor 207 #
#temperature_control.hotend.max_pwm 64 # max pwm, 64 is a good value if driving a 12v resistor with 24v.
# Hotend2 temperature control configuration
#temperature_control.hotend2.enable true # Whether to activate this ( "hotend" ) module at all.
# All configuration is ignored if false.
#temperature_control.hotend2.thermistor_pin 0.25 # Pin for the thermistor to read
#temperature_control.hotend2.heater_pin 1.23 # Pin that controls the heater
#temperature_control.hotend2.thermistor EPCOS100K # http://smoothieware.org/temperaturecontrol#toc5
##temperature_control.hotend2.beta 4066 # or set the beta value
#temperature_control.hotend2.set_m_code 884 #
#temperature_control.hotend2.set_and_wait_m_code 889 #
#temperature_control.hotend2.designator T1 #
#temperature_control.hotend2.p_factor 13.7 # permanently set the PID values after an auto pid
#temperature_control.hotend2.i_factor 0.097 #
#temperature_control.hotend2.d_factor 24 #
#temperature_control.hotend2.max_pwm 64 # max pwm, 64 is a good value if driving a 12v resistor with 24v.
temperature_control.bed.enable true #
temperature_control.bed.thermistor_pin 0.24 #
temperature_control.bed.heater_pin 2.4 #
temperature_control.bed.thermistor Honeywell100K # see http://smoothieware.org/temperaturecontrol#toc5
#temperature_control.bed.beta 4066 # or set the beta value
temperature_control.bed.set_m_code 140 #
temperature_control.bed.set_and_wait_m_code 190 #
temperature_control.bed.designator B #
#temperature_control.bed.bang_bang false # set to true to use bang bang control rather than PID
#temperature_control.bed.hysteresis 2.0 # set to the temperature in degrees C to use as hysteresis
# when using bang bang
# Switch module for fan control
switch.fan.enable true #
switch.fan.input_on_command M106 #
switch.fan.input_off_command M107 #
switch.fan.output_pin 2.6 #
switch.fan.output_type pwm # pwm output settable with S parameter in the input_on_comand
#switch.fan.max_pwm 255 # set max pwm for the pin default is 255
#switch.misc.enable true #
#switch.misc.input_on_command M42 #
#switch.misc.input_off_command M43 #
#switch.misc.output_pin 2.4 #
#switch.misc.output_type digital # just an on or off pin
# automatically toggle a switch at a specified temperature. Different ones of these may be defined to monitor different temperatures and switch different swithxes
# useful to turn on a fan or water pump to cool the hotend
temperatureswitch.hotend.enable true #
temperatureswitch.hotend.designator T # first character of the temperature control designator to use as the temperature sensor to monitor
temperatureswitch.hotend.switch fan # select which switch to use, matches the name of the defined switch
temperatureswitch.hotend.threshold_temp 60.0 # temperature to turn on (if rising) or off the switch
temperatureswitch.hotend.heatup_poll 1 # poll heatup at 15 sec intervals
temperatureswitch.hotend.cooldown_poll 60 # poll cooldown at 60 sec intervals
# Switch module for spindle control
#switch.spindle.enable false #
# Endstops
endstops_enable true # the endstop module is enabled by default and can be disabled here
delta_homing true # forces all three axis to home a the same time regardless of
# what is specified in G28
alpha_min_endstop nc #
alpha_max_endstop 1.25^ # add ! to invert pullup if switch is NO to ground
alpha_homing_direction home_to_max # Home up
alpha_max 0 #
beta_min_endstop nc #
beta_max_endstop 1.27^ #
beta_homing_direction home_to_max #
beta_max 0 #
gamma_min_endstop nc #
gamma_max_endstop 1.29^ #
gamma_homing_direction home_to_max #
gamma_max 259.45 #
alpha_fast_homing_rate_mm_s 200 # homing feedrates in mm/second
beta_fast_homing_rate_mm_s 200 #
gamma_fast_homing_rate_mm_s 200 #
alpha_slow_homing_rate_mm_s 20 #
beta_slow_homing_rate_mm_s 20 #
gamma_slow_homing_rate_mm_s 20
alpha_homing_retract_mm 15 # retract/bounce distance after homing in mm
beta_homing_retract_mm 15 #
gamma_homing_retract_mm 15 #
alpha_trim 0 # software trim for alpha stepper endstop (in mm)
beta_trim 0 # software trim for beta stepper endstop (in mm)
gamma_trim 0 # software trim for gamma stepper endstop (in mm)
#endstop_debounce_count 100 # uncomment if you get noise on your endstops
# optional Z probe
zprobe.enable false # set to true to enable a zprobe
zprobe.probe_pin 1.28!^ # pin probe is attached to if NC remove the !
zprobe.slow_feedrate 5 # mm/sec probe feed rate
#zprobe.debounce_count 100 # set if noisy
zprobe.fast_feedrate 100 # move feedrate mm/sec
zprobe.probe_height 5 # how much above bed to start probe
#gamma_min_endstop nc # normally 1.28. Change to nc to prevent conflict,
# associated with zprobe the leveling strategy to use
#leveling-strategy.delta-calibration.enable true # basic delta calibration
#leveling-strategy.delta-calibration.radius 100 # the probe radius
# Pause button
pause_button_enable true #
# Panel
panel.enable false # set to true to enable the panel code
panel.lcd smoothiepanel # set type of panel
panel.encoder_a_pin 3.25!^ # encoder pin
panel.encoder_b_pin 3.26!^ # encoder pin
# Example for reprap discount GLCD
# on glcd EXP1 is to left and EXP2 is to right, pin 1 is bottom left, pin 2 is top left etc.
# +5v is EXP1 pin 10, Gnd is EXP1 pin 9
#panel.lcd reprap_discount_glcd #
#panel.spi_channel 0 # spi channel to use ; GLCD EXP1 Pins 3,5 (MOSI, SCLK)
#panel.spi_cs_pin 0.16 # spi chip select ; GLCD EXP1 Pin 4
#panel.encoder_a_pin 3.25!^ # encoder pin ; GLCD EXP2 Pin 3
#panel.encoder_b_pin 3.26!^ # encoder pin ; GLCD EXP2 Pin 5
#panel.click_button_pin 1.30!^ # click button ; GLCD EXP1 Pin 2
#panel.buzz_pin 1.31 # pin for buzzer ; GLCD EXP1 Pin 1
#panel.button_pause_pin 2.11^ # kill/pause ; GLCD EXP2 Pin 8 either
#panel.back_button_pin 2.11!^ # back button ; GLCD EXP2 Pin 8 or
# pins used with other panels
#panel.up_button_pin 0.1! # up button if used
#panel.down_button_pin 0.0! # down button if used
#panel.click_button_pin 0.18! # click button if used
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
# Example of a custom menu entry, which will show up in the Custom entry.
# NOTE _ gets converted to space in the menu and commands, | is used to separate multiple commands
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 #
# Only needed on a smoothieboard
currentcontrol_module_enable true #
return_error_on_unhandled_gcode false #
# network settings
network.enable true # 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
# uncomment the 3 below to manually setup ip address
#network.ip_address 192.168.3.222 # the IP address
#network.ip_mask 255.255.255.0 # the ip mask
#network.ip_gateway 192.168.3.1 # the gateway address
#network.mac_override xx.xx.xx.xx.xx.xx # override the mac address, only do this if you have a conflict
When putting my hand on the Z axis motor, I found the motor lightly clicking when it would try to move backwards. It's weird that movement works fine when I'm manually controlling the effector though..
Here's a video:
https://www.youtube.com/watch?v=3Vr68okBtZk
Re: Homes correctly, but Z axis messes up when printing
Posted: Fri Jun 19, 2015 10:28 am
by KAS
Not sure, I'm not really seeing anything different on your config from mine. Gamma direction is different, but that's for a rostock max. (gamma_dir_pin 0.20! )
When you swapped the steppers, did the issue stay on the Gamma(z) tower or did it follow that stepper? I'm thinking either a defective driver on the board, or incorrect wiring, or defective stepper.
Re: Homes correctly, but Z axis messes up when printing
Posted: Fri Jun 19, 2015 10:55 am
by mlapaglia
When switching the beta and gamma steppers and end stop the problem started happening on the beta tower.
It looks like it could be an issue with the stepper driver on the board. I've got a few spares I could swap out the SMD with a different one.
This setup came from a rostock max, i wonder why my motor doesn't need to be switched like yours.. If the stepper works correctly outside of when it's actually printing, going up and down without issue, could the stepper driver have an issue with only moving slow and not fast?
What do your repetier-host settings look like for the homing values? My x and y are set to home to 0, the z axis is home to max. None of the controls in repetier-host are set to invert the directions.
Re: Homes correctly, but Z axis messes up when printing
Posted: Fri Jun 19, 2015 12:41 pm
by KAS
I use Simplify3D but I only use G28 to home the towers. On the stock Rostock Max v2, one of the steppers are flipped 180 from the others. So the direction on the config file has to be changed or the actual connection on the board can be flipped as-well. It looks like on yours that the stepper is mounted to the center on each tower, so that makes sense that you wouldn't need to reverse the direction on any axis.
Re: Homes correctly, but Z axis messes up when printing
Posted: Fri Jun 19, 2015 1:09 pm
by mlapaglia
I just swapped the smoothieboard with another one that randomly has issues with turning off, all the axis started functioning normally (except when the board freezes).
I used the same sd card on both, so they are both running the same config. I believe this defines it as a hardware problem. sigh, time for board #4...
Re: Homes correctly, but Z axis messes up when printing
Posted: Fri Jun 19, 2015 4:18 pm
by KAS
I hear ya. Smoothieboard isn't making a good name around here in regards to the quality aspects.