IR Z Probe Settings
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Hello again.
I had to switch to a microswitch Z stop for a while, but now i am putting the IR probe back to work. I have it mounted, and wired. It triggers just fine, and the Duet can read it. However, it triggers at 1.25mm above the bed like it should and I cant seem to set the Z offset so that it moves on down to zero. It stubbornly sticks to the Z height being exactly where it triggers the IR probe.
This seems like its a leftover setting from the Z probe time, But I am not able to tell where. I will attach my config.g and homeall.g files here, so you can point out what i missed.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 Tue Feb 26 2019 22:23:49 GMT-0600 (Central Standard Time); General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves; Network
M550 P"AMV8" ; Set machine name
M552 S1 ; Enable network
M587 S"Awesome Sauce!" P"1q2w3e4r" I10.0.42.195 J10.0.42.1 K255.255.255.0 ; Configure access point and IP addresses. You can delete this line once connected
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet; Drives
M569 P0 S0 ; Drive 0 goes forwards
M569 P1 S0 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes forwards
M569 P3 S0 ; Drive 3 goes forwards
M569 P4 S1 ; Drive 4 goes forwards
M350 X32 Y32 Z32 E32:32 I0 ; Configure microstepping without interpolation
M92 X160.00 Y160.00 Z845.00 E768.00:768.00 ; Set steps per mm
M566 X900.00 Y900.00 Z12.00 E120.00:120.00 ; Set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00:1200.00 ; Set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z250.00 E250.00:250.00 ; Set accelerations (mm/s^2)
M906 X1200.00 Y1200.00 Z1200.00 E900.00:900.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout
M564 H0 ; Allow movement without homing; Axis Limits
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X250 Y280 Z270 S0 ; Set axis maxima; Endstops
M574 X1 Y1 S0 ; Set active low and disabled endstops
M591 D0 P2 C3 S1 ; Set E0 endstop to filament runout microswitch on E0
M591 D1 P2 C4 S1 ; Set E1 endstop to filament runout microswitch on E1; Z-Probe
M574 Z1 S2 ; Set endstops controlled by probe
M558 P1 H5 F120 T6000 ; Set Z probe type to unmodulated and the dive height + speeds
G31 P500 X10 Y0 Z1.25 ; Set Z probe trigger value, offset and trigger height
M557 X30:200 Y30:240 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 S280 ; Set temperature limit for heater 1 to 280C; Fans
M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 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
M563 P1 D1 H1 ; Define tool 1
G10 P1 X0 Y0 Z0 ; Set tool 1 axis offsets
G10 P1 R0 S0 ; Set initial tool 1 active and standby temperatures to 0C; Automatic saving after power loss is not enabled
; Custom settings are not configured
; Miscellaneous
M501 ; Load saved parameters from non-volatile memory
T0 ; Select first tool
Homeall.G:
; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2 on Tue Feb 26 2019 22:23:49 GMT-0600 (Central Standard Time)
G91 ; relative positioning
G1 Z10 F6000 S2 ; lift Z relative to current position
G1 S1 X-225 Y-285 F3600 ; 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-225 Y-285 F1000 ; move slowly to X and Y axis endstops once more (second pass)G90 ; back to absolute mode
G1 X140 Y140 F36000 ; put the head wherever you want it to be when you home Z (omit this line if it doesn't matter)
G91 ; relative mode
G1 S1 Z-300 F700 ; move Z down until the switch triggers
G90 ; back to absolute mode
G92 Z0 ; tell the firmware that we are at Z=0
G1 Z5 F500 ;lift Z a bit; 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 -
@jkaechler said in IR Z Probe Settings:
G1 S1 Z-300 F700 ; move Z down until the switch triggers
G90 ; back to absolute mode
G92 Z0 ; tell the firmware that we are at Z=0If you're wanting to use a probe to home, you will need to change this section to a G30 probe command.
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That works! thanks.
Now my next challenge. When I try to run bed mesh compensation, it moves to the first probe point, and then on down to the bed. But the Z keeps going down, the probe lights up but does not trigger. After a couple seconds DWC will report 'Z axis did not trigger' and abort the auto bed compensation run.What do i have wrong on this one?
P.S. Phaedrux and DC42, thank you both for many answers and tips over the past year or so.
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Happy to help.
Are you saying that the probe works when homing but not when doing G29?
Double check these guides
https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe
https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe
