Bltouch Error: Z probe was not triggered during probing move
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i'm trying to get my duet 2 WiFi working on my tevo tornado, and am running into issues with the BLTouch
everything seems to be working, but when I have it probe the bed I get
"G28
Error: Z probe was not triggered during probing move"
but it sure looks to me like it was.it sure looks like it detects the bed, it hops back up, probes the bed again and the printer reports that it is homed.
it's really confusing.any suggestions where to look / what to change?
here's my wall-o-configs
Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
Firmware Electronics: Duet WiFi 1.02 or later
Firmware Version: 2.03beta3 (2019-03-25b6)
WiFi Server Version: 1.22
Web Interface Version: 1.22.6config-override.g
empty
Config.g
; Configuration file for Duet WiFi (firmware version 1.21)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2 on Wed Apr 03 2019 15:50:04 GMT-0500 (Central Daylight Time); General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves; Network
M550 P"PrinterOfThings" ; Set machine name
M552 S1 ; Enable network
M586 P0 S1 ; Enable HTTP
;M586 P1 S1 ; Enable FTP
;M586 P2 S1 ; Enable Telnet; Drives
M569 P0 S0 ; Drive 0 goes Backwards
M569 P1 S0 ; Drive 1 goes Backwards
M569 P2 S0 ; Drive 2 goes Backwards
M569 P3 S0 ; Drive 3 goes Backwards
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E615.4 ; Set steps per mm
M566 X900.00 Y900.00 Z12.00 E120.00 ; Set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z6000.00 E1200.00 ; Set maximum speeds (mm/min)
M201 X200.00 Y200.00 Z100.00 E250.00 ; Set accelerations (mm/s^2)
M906 X800.00 Y800.00 Z800.00 E800.00 I10 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout; Axis Limits
M208 X0 Y0 Z-20 S1 ; Set axis minima
M208 X300 Y300 Z400 S0 ; Set axis maxima; Endstops
M574 X1 Y1 S0 ; Set active low and disabled endstops
M574 Z1 S2 ; Define Z to use Probe. Home to Min; Z-Probe
; BLTouch - Heaters
M307 H7 A-1 C-1 D-1 ; Disable the 7th Heater to free up PWM channel 5 on the Duex board.
M557 X15:285 Y15:285 S50 ; Define mesh grid
M558 P9 H5 F100 T6000 A5 R0.2 ; P9 for BLTouch, dive height 5mm, probe at 100mm/min, travel 6000mm/min, up to 5 probes, pause 0.1s
G31 X-45 Y-5 Z-5.25 P25 ; probe XY offset and Z trigger height and trigger value
M557 X5:205 Y5:165 S20 ; Define mesh grid; Heaters
M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S265 ; Set temperature limit for heater 1 to 265C; Fans
M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S0 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P2 S0 I0 F500 H-1 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off; Tools
M563 P0 D0 H1 ; Define tool 0
G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C; Automatic power saving
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss; Custom settings are not configured
; Miscellaneous
M501 ; Load saved parameters from non-volatile memoryDeployprobe.g
M280 P7 S10 I1
Retractprobe.g
M280 P7 S90 I1
homez.g
; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2 on Wed Apr 03 2019 15:50:05 GMT-0500 (Central Daylight Time)
G91 ; relative positioning
G1 Z5 F6000 S2 ; lift Z relative to current position
G1 X190 Y150 F4000 ; Move probe to middle of bed
G30
G92 Z13 ; set Z to axis minimum (you may want to adjust this); Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 S2 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioninghomeall.g
; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2 on Wed Apr 03 2019 15:50:05 GMT-0500 (Central Daylight Time)
G91 ; relative positioning
G1 Z5 F6000 S2 ; lift Z relative to current position
G1 S1 X-305 Y-305 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F6000 ; go back a few mm
G1 S1 X-305 Y-305 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90
G1 X190 Y150 F4000 ; Move probe to middle of bed
G30
;G90 ; absolute positioning
G92 Z11 ; set Z to axis minimum (you may want to adjust this); Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 S2 Z5 F100 ; lift Z relative to current position
;G90 ; ; absolute positioning -
does the self test work?
M280 P7 S120 I1
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@veti said in Bltouch Error: Z probe was not triggered during probing move:
M280 P7 S120 I1
yes it does
<click, click, click.....> -
@doerofthings said in Bltouch Error: Z probe was not triggered during probing move:
G31 X-45 Y-5 Z-5.25
How did you get a trigger height of -5.25?
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@phaedrux
honestly, i'm not sure how i arrived at that.i think i was trying to set the Z offset, but yeah, it doesn't make sense.
so i went back and set it based on the procedure here http://www.sublimelayers.com/2017/05/fdffsd.html
and arrived at G31 X-45 Y-5 Z3.7 P25it seems to like that, but it thinks zero is 2.2mm above the bed. how do i fix that? i tried setting the G31 Z to 1.5 and also 5.9 (assuming i didnt know how it was counting...) but it made no change.
how do i set the z offset on this?
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@doerofthings said in Bltouch Error: Z probe was not triggered during probing move:
G92 Z11 ; set Z to axis minimum (you may want to adjust this)
Remove this from your homeall.g and homez.g. You definitely don't want to force the z height after you've used the probe to find the real height with G30. This explains why changing the offset had no effect, because you are overriding it.
I have a feeling that your bltouch may be mounted a bit too high as well. It should be mounted so that the base of the probe body is 8mm above the nozzle tip. When installed correctly, the trigger height will be around 2mm.
Once you've done that, recheck your trigger height with this procedure: https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe#Section_Calibrate_the_Z_probe_trigger_height
Then you can rerun your G29 if you want to use it.