Solved IR probe and Duet Maestro
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Hi, I've recently upgraded my Duet 0.8.5 to the Duet Maestro and while wiring my IR probe (the same one I had used before) I noticed it only blinks twice instead of four times at power up. It does seem to work - homes correctly and outputs a height map, don't know if the readings are correct though.
What am I missing?
Using RRF 2.01 and AUS3D v1.4 Z probe.
I've checked the wiring: analog output<->z probe in, vcc<->3.3v, gnd<->gnd.
Thanks!
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What probe type do you have selected in your M558 command in config.g?
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This is my M558 command in config.g:
M558 P1 H5 F120 T6000
And my full config.g:
; Configuration file for Duet Maestro (firmware version 1.20 or newer)
; executed by the firmware on start-up
;; General preferences
M111 S0 ; Debugging off
G21 ; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M555 P1 ; Set firmware compatibility to look like RepRapFirmare
; Automatic saving after power loss is not enabled
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X210 Y205 Z195 S0 ; Set axis maxima; Endstops
M574 X1 Y1 S1 ; Set active high endstops
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 X0 Y19.22 Z2.850 ; Set Z probe trigger value, offset and trigger height
M557 X10:210 Y20:200 S20 ; Define mesh grid; Drives
M569 P0 S0 ; Drive 0 goes backwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes backwards
M569 P3 S1 ; Drive 3 goes forwards
M350 X16 Y16 Z16 E16 I1 ; set 16x microstepping with interpolation
M92 X80 Y80 Z400 E831 ; Set steps per mm
M566 X1200 Y1200 Z60 E300 ; Set maximum instantaneous speed changes (mm/min)
M203 X12000 Y12000 Z600 E3600 ; Set maximum speeds (mm/min)
M201 X3000 Y3000 Z50 E1000 ; Set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E1300 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeoutM671 X110:15:205 Y15:195:195 P0.5
; Heaters
M305 P0 T100000 B3950 C0 R2200 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M307 H0 A131.4 C339.7 D1.0 B0 ; Set PID parameters for heater 0 (bed) at 60C
M305 P1 T100000 B4725 C7.060000e-8 R2200 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C
M307 H1 A361.8 C225.6 D5.8 B0 ; Set PID parameters for heater 1 (hotend) at 210C; 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; 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 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off; Custom settings are not configured
; Miscellaneous
T0 ; Select first tool -
That config looks ok to me. I have one of our own IR sensors in my Maestro-powered Ormerod printer. I am fairly sure it flashes four times at power up, but I'll check next time I use it.
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I have confirmed, an IR sensor connected correctly to the Duet Maestro in my Ormerod printer flashes 4 times at startup, using P1 in the M558 command.
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Thanks, but would it be a problem for my printer? The two flashes mean digital output, but I'm using the analog output anyway, am I right?
If it's a problem, what else should I look into? -
Something isn't right, however the probe will still work even if the Duet is configured for analog mode and the IR sensor is producing a digital output. You won't get the benefit of the probing move slowing down when the probe gets close to trigger height.
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Hi, I´ve the same problem as Maut. But my Z-Probe also reads 1000 all the time. On your webpage https://miscsolutions.wordpress.com/mini-height-sensor-board/ you say its due to high IR influence from eg sunbeams. To avoid the sun i tried it in the night
My config looks like this:
; Configuration file for Duet Maestro (firmware version 1.21)
; executed by the firmware on start-up
;; General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder movesM667 S1 ; Select CoreXY mode
; Network
M550 P"Tronxy" ; Set machine nameM552 P192.168.178.15 S1 ; Enable network and acquire dynamic address via DHCP
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet; Drives
M569 P0 S1 ; Physical drive 0 goes backwards
M569 P1 S1 ; Physical drive 1 goes backwards
M569 P2 S0 ; Physical drive 2 goes forwards
M569 P3 S1 ; Physical drive 3 goes forwards
M350 X128 Y128 Z16 E128 I1 ; Configure microstepping with interpolation
M92 X640.00 Y640.00 Z400.00 E2222.38 ; 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 Z180.00 E9000.00 ; Set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; Set accelerations (mm/s^2)
M906 X800.00 Y800.00 Z800.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout; Axis Limits
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X350 Y300 Z350 S0 ; Set axis maxima; Endstops
M574 X1 Y1 Z2 S0 ;set endstops low active; Z-Probe
;M574 Z2 S2 ; Set endstops controlled by probe
;M558 P1 H0 F120 T3000 ; Set Z probe type to unmodulated and the dive height + speeds
;G31 P500 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height
;M557 X15:335 Y15:195 S20 ; Define mesh grid; Heaters
M302 P1M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B3950 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B3950 ; 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 T45 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on; 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 saving after power loss is not enabled
; Custom settings are not configured
I commended the Z-Probing as I dont get good reading with "Send M558 P1 to the Duet, then send G31 P500 Z1.0."
I really would appreciate your help!
Thanks a lot
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@simplesimson, does the Z probe reading in DWC depend on whether it is triggered or not (i.e. whether the red LED on the sensor is illuminated)?
Duet WiFi hardware designer and firmware engineer
Please do not ask me for Duet support via PM or email, use the forum
http://www.escher3d.com, https://miscsolutions.wordpress.com -
@dc42 Hey, sorry for the late reply - first of all thanks for your great work, read a lot of your posts and so on. Thanks a lot.
Back to topic:
In the DuetWebplatform the reading is around 5 when no item is near the sensor. If it gets triggered it jumps digital to 1000. There is no analog change/increase. -
Hey,
i´m still having the same problem. Do I need to use M558 P2 for the "digital probe"? if I do so, the Probe Z status in DWC shows 0 (5) when not triggered and 0(1000) when triggered. By Triggerd i mean a red LED.
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Good morning. The Probe works as it should. It Reports 460-530 in trigger range.
I must have made a misstake. If somebody in future has the same Problem. Have a look at your Z-Speed I slowed it down a lot maybe thats been a Issue. Also I changed my cable routing.
I had the suspission that the heating of my hotend might have an effect on the signal of the probe.
ty for your help
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@simplesimson said in IR probe and Duet Maestro:
Hey,
i´m still having the same problem. Do I need to use M558 P2 for the "digital probe"? if I do so, the Probe Z status in DWC shows 0 (5) when not triggered and 0(1000) when triggered. By Triggerd i mean a red LED.
Sorry for the late response. M558 P1 is correct for the IR sensor that we sell. P2 is only for the sensor that RepRapPro included in the Ormerod 2 printer and I think also the Huxley Duo and one of their Mendel printers.
