Z lift after probe and prime

Hello,
New smoothieboard user here with an azteeg x5 gt on a hictop I3 clone.
Everything up until the actual printing is working
3 point probe works and I can see Z steppers compensating during the prime.
For some reason, Z raises a few MM after prime and I have tried changing offsets as well as first layer height in simplify3d.
I appreciate any help.

Here is a video of what it is doing:
youtubeDOTcom/watch?v=Imos1swmrjk

Here is my starting gcode:

G28 ; home all axes
G1 X10 Y30 Z30 F3000 ;
G32 ; run auto bed leveling routine
G1 X0 Y20 Z-0.8 F1500 ; get ready to prime
M500 ;
M109 S[extruder0_temperature] ; heat the extruder
G1 X200 E20 F600 ; prime nozzle

And here is my configuration file:

Robot module configurations : general handling of movement G-codes and slicing into moves

default_feed_rate 3000 # Default rate ( mm/minute ) for G1/G2/G3 moves
default_seek_rate 3000 # 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 5 # Lines can be cut into segments ( not usefull with cartesian coordinates robots ).

Arm solution configuration : Cartesian robot. Translates mm positions into stepper positions

alpha_steps_per_mm 320 # Steps per mm for alpha stepper
beta_steps_per_mm 320 # Steps per mm for beta stepper
gamma_steps_per_mm 1603 # Steps per mm for gamma stepper 1637.7953

Planner module configuration : Look-ahead and acceleration configuration

planner_queue_size 32 # DO NOT CHANGE THIS UNLESS YOU KNOW EXACTLY WHAT YOUR ARE DOING
acceleration 3000 # Acceleration in mm/second/second.
#z_acceleration 500 # Acceleration for Z only moves in mm/s^2, 0 disables it, disabled by default. DO NOT SET ON A DELTA
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 :

  1. and . Lower values mean being more careful, higher values means being faster and have more jerk

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

Stepper module pins ( ports, and pin numbers, appending “!” to the number will invert a pin )

alpha_step_pin 2.1 # Pin for alpha stepper step signal
alpha_dir_pin 0.11 # Pin for alpha stepper direction
alpha_en_pin 0.10 # Pin for alpha enable pin 0.10
alpha_current 1.5 # X stepper current
x_axis_max_speed 30000 # mm/min
alpha_max_rate 30000.0 # mm/min actuator max speed

beta_step_pin 2.2 # Pin for beta stepper step signal
beta_dir_pin 0.20 # Pin for beta stepper direction
beta_en_pin 0.19 # Pin for beta enable
beta_current 1.5 # Y stepper current
y_axis_max_speed 30000 # mm/min
beta_max_rate 30000.0 # mm/min actuator max speed

gamma_step_pin 2.3 # Pin for gamma stepper step signal
gamma_dir_pin 0.22! # Pin for gamma stepper direction
gamma_en_pin 0.21 # Pin for gamma enable
gamma_current 1.5 # Z stepper current
z_axis_max_speed 30000 # mm/min
gamma_max_rate 30000.0 # mm/min actuator max speed

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)
#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 3348 # 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 mm/sec²
extruder.hotend.max_speed 50 # mm/s

extruder.hotend.step_pin 2.0 # Pin for extruder step signal
extruder.hotend.dir_pin 0.5 # Pin for extruder dir signal
extruder.hotend.en_pin 0.4 # Pin for extruder enable signal

extruder offset

extruder.hotend.x_offset 30 # x offset from origin in mm
extruder.hotend.y_offset 30 # 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 # Extruder 1 stepper current.

Second extruder module configuration

extruder.hotend2.enable false # 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 1.0 # Extruder 2 stepper 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 2.7 # this pin will be PWMed to control the laser
#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

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 0.24 # Pin for the thermistor to read
temperature_control.hotend.heater_pin 2.4 # Pin that controls the heater
temperature_control.hotend.thermistor EPCOS100K # see
#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 13.7 #
#temperature_control.hotend.i_factor 0.097 #
#temperature_control.hotend.d_factor 24 #

#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 false # 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 2.5 # Pin that controls the heater
temperature_control.hotend2.thermistor EPCOS100K # see
##temperature_control.hotend2.beta 4066 # or set the beta value
temperature_control.hotend2.set_m_code 104 #
temperature_control.hotend2.set_and_wait_m_code 109 #
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 0.23 #
temperature_control.bed.heater_pin 2.7 #
temperature_control.bed.thermistor EPCOS100K # see
#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.max_pwm 64 # max pwm, 64 is a good value if driving a 12v resistor with 24v.

Switch module for fan control

switch.fan.enable false #
switch.fan.input_on_command M106 #
switch.fan.input_off_command M107 #
switch.fan.output_pin 0.26 #

switch.misc.enable false #
switch.misc.input_on_command M42 #
switch.misc.input_off_command M43 #
switch.misc.output_pin 1.22 #

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 misc # 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 15 # poll heatup at 15 sec intervals
#temperatureswitch.hotend.cooldown_poll 60 # poll cooldown at 60 sec intervals

filament out detector

#filament_detector.enable true #
#filament_detector.encoder_pin 0.26 # must be interrupt enabled pin (0.26, 0.27, 0.28)
#filament_detector.seconds_per_check 2 # may need to be longer
#filament_detector.pulses_per_mm 1 .0 # will need to be tuned
#filament_detector.bulge_pin 0.27 # optional bulge detector switch and/or manual suspend

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
#corexy_homing false # set to true if homing on a hbit or corexy
alpha_min_endstop 1.24! # add a ! to invert if endstop is NO connected to ground
#alpha_max_endstop 1.27^ #
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 1.25! #
#beta_max_endstop 1.28^ #
beta_homing_direction home_to_min #
beta_min 0 #
beta_max 267 #
gamma_min_endstop 1.26! #
gamma_max_endstop nc #
gamma_homing_direction home_to_min #
gamma_min 0 #
gamma_max 200 #

optional enable limit switches, actions will stop if any enabled limit switch is triggered

#alpha_limit_enable true # set to true to enable X min and max limit switches
#beta_limit_enable true # set to true to enable Y min and max limit switches
#gamma_limit_enable true # set to true to enable Z min and max limit switches

#probe endstop
#probe_pin 1.29 # optional pin for probe

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 # "

#endstop_debounce_count 100 # uncomment if you get noise on your endstops, default is 100

optional Z probe

zprobe.enable true # set to true to enable a zprobe
zprobe.probe_pin 1.29!^ # 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 10 # how much above bed to start probe

associated with zprobe the leveling strategy to use

leveling-strategy.three-point-leveling.enable true # a leveling strategy that probes three points to define a plane and keeps the Z parallel to that plane
leveling-strategy.three-point-leveling.point1 0.0,20.0 # the first probe point (x,y) optional may be defined with M557
leveling-strategy.three-point-leveling.point2 190.0,20.0 # the second probe point (x,y)
leveling-strategy.three-point-leveling.point3 95.0,200.0 # the third probe point (x,y)
leveling-strategy.three-point-leveling.home_first true # home the XY axis before probing
leveling-strategy.three-point-leveling.tolerance 0.03 # the probe tolerance in mm, anything less that this will be ignored, default is 0.03mm
leveling-strategy.three-point-leveling.probe_offsets 0,-53,0 # the probe offsets from nozzle, must be x,y,z, default is no offset
leveling-strategy.three-point-leveling.save_plane true # set to true to allow the bed plane to be saved with M500 default is false

kill button (used to be called pause) maybe assigned to a different pin, set to the onboard pin by default

kill_button_enable true # set to true to enable a kill button
kill_button_pin 2.12 # kill button pin.

Panel See

panel.enable true # set to true to enable the panel code

Example viki2 config for an azteeg miniV2 with IDC cable

panel.lcd viki2 # set type of panel
panel.spi_channel 0 # set spi channel to use P0_18,P0_15 MOSI,SCLK
panel.spi_cs_pin 0.16 # set spi chip select
panel.encoder_a_pin 3.25!^ # encoder pin
panel.encoder_b_pin 3.26!^ # encoder pin
panel.click_button_pin 2.11!^ # click button
panel.a0_pin 2.6 # st7565 needs an a0
panel.contrast 0 # override contrast setting (default is 9)
panel.encoder_resolution 1 # override number of clicks to move 1 item (default is 4)
#panel.button_pause_pin 1.30^ # kill/pause set one of these for the auxilliary button on viki2
#panel.back_button_pin 1.22!^ # back button recommended to use this on EXP1
panel.buzz_pin 1.31 # pin for buzzer on EXP2
panel.red_led_pin 1.19 # pin for red led on viki2 on EXP1
panel.blue_led_pin 1.20 # pin for blue led on viki2 on EXP1
panel.external_sd true # set to true if there is an extrernal sdcard on the panel
panel.external_sd.spi_channel 0 # set spi channel the sdcard is on
panel.external_sd.spi_cs_pin 1.21 # set spi chip select for the sdcard
panel.external_sd.sdcd_pin 1.18!^ # sd detect signal (set to nc if no sdcard detect) 1.18!^
panel.menu_offset 1 # some panels will need 1 here

Example miniviki2 config

#panel.lcd mini_viki2 # set type of panel
#panel.spi_channel 0 # set spi channel to use P0_18,P0_15 MOSI,SCLK
#panel.spi_cs_pin 0.16 # set spi chip select
#panel.encoder_a_pin 3.25!^ # encoder pin
#panel.encoder_b_pin 3.26!^ # encoder pin
#panel.click_button_pin 2.11!^ # click button
#panel.a0_pin 2.6 # st7565 needs an a0
##panel.contrast 18 # override contrast setting (default is 18)
##panel.encoder_resolution 2 # override number of clicks to move 1 item (default is 2)
#panel.menu_offset 1 # here controls how sensitive the menu is. some panels will need 1

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.T1_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 #

Azteeg specific settings do not change

currentcontrol_module_enable true #
digipot_max_current 3.0 # max current
digipot_factor 51.0 # factor for converting current to digipot value
#51.0 for SD8825, SD6128, SD5984, BSD109A

leds_disable true # disable using leds after config loaded

network settings

network.enable false # enable the ethernet network services
network.webserver.enable true # enable the webserver
network.telnet.enable true # enable the telnet server
network.plan9.enable true # enable the plan9 network filesystem
network.ip_address auto # the IP address
#network.ip_mask 255.255.255.0 # the ip mask
#network.ip_gateway 192.168.7.254 # the gateway address

Imported from wikidot

Why do you have a M500 there, that makes no sense ?

About your problem specifically, can you open a gcode file and show us what is in the file after your start gcode ?

Thanks.

The M500 was just out of desperation, saw it on a smoothie blog post somewhere and tried it.
I tried both simplify3d and cura they both do the same thing, which is what is making me think its some quirk in my configuration.
Here is a gcode export from cura.

M190 S70.000000
M109 T0 S240.000000
T0
G28 ; home all axes

G1 X10 Y30 Z30 F3000 ;

G32 ; run auto bed leveling routine

G1 X0 Y20 Z-0.8 F1500 ; get ready to prime

M500 ;

M109 S[extruder0_temperature] ; heat the extruder

G1 X200 E20 F600 ; prime nozzle

;Layer count: 240
;LAYER:0
M107
G0 F9000 X68.907 Y48.873 Z0.300
;TYPE:SKIRT
G1 F1200 X69.126 Y48.578 E0.00864
G1 X69.372 Y48.281 E0.01771
G1 X69.642 Y48.008 E0.02673
G1 X69.938 Y47.739 E0.03614

Sounds like you are mixing up relative and absolute modes.

You need to clearly define in your gcode what mode you are in using these two commands : 

And then in your gcodes ( like the G1 that sets your Z height after probing ) use the right way to specify distances.

For example this command : 

G1 X0 Y20 Z-0.8 F1500 ; get ready to prime

Clearly has the Z meant as something relative ( since in absolute mode that would get you bellow the bed ), but you really should be using an absolute position here.

I suggest you read up on absolute versus relative positions in gcode, and modify your script to do what you really want.

But wouldn’t an absolute position be relative to the min endstop?

I should have mentioned, I’m using a permanently mounted inductive probe.
Worked reliably under marlin, and it detects the bed a mm before the nozzle touches the bed.
I thought the relative position was relating to the z probe distance.

There are many ways to do this. You need to choose one and set it up.

In general, the basic idea is, you need to :

  • Get the head in a fixed known position ( by seeking either an endstop or a probe )
  • Set the current position at the value you know it should be at this point ( using either Gcode, or configuration in the case of endstops )
  • Go about your business

The documentation for this is at : http://smoothieware.org/gamma_max as you can see there are several methods, you just choose one and apply it