Duet 2 and BL Touch

[JL-P]

Hi im realy stugeling with my BL Touch config.
I tried i think all other posts on this site but nothing works for me.
i tried several bl touches . and cables but non works

When i send a m401 or M402 the probe is deploying.

but isnt working when homing z
when i send a m280 it also works with 10 and 90.

Connected the black and white wire to the z probe pin.
and the other three at 1-Red 2-Brown and 8Yellow/orange

config.g
; Configuration file for Duet WiFi (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.12 on Sun Sep 11 2022 20:16:12 GMT+0200 (Midden-Europese zomertijd)

; General preferences
M575 P1 S1 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"JL-P-DUET2Ethernet" ; set printer name

; Network
M552 P0.0.0.0 S1 ; enable network and acquire dynamic address via DHCP
M586 P0 S1 ; enable HTTP
M586 P1 S1 ; enable FTP
M586 P2 S1 ; enable Telnet

; Drives
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E420.00 ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E800 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X17 Y0 Z0 S1 ; set axis minima
M208 X499 Y460 Z450 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"!xstop" ; configure switch-type (e.g. microswitch) endstop for high end on X via pin xstop
M574 Y1 S1 P"!ystop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop
M574 Z1 S2 ; set z-Probe ; configure Z-probe endstop for low end on Z

; Z-Probe
M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch
M558 P9 C"^zprobe.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X100 Y100 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X32:215 Y15:195 S20 ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M308 S1 P"e0temp" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S280 ; set temperature limit for heater 1 to 280C

; Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0 ; 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

; Custom settings are not defined

; Miscellaneous
M501 ; load saved parameters from non-volatile memory
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
T0 ; select first tool

[tmitch205]

Need to see your Homez and Homeall, also

[jay_s_uk]

@jl-p do you have a deploy and reteach file for it?

[JL-P]

@tmitch205
.
; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.3.12 on Sun Sep 11 2022 20:16:12 GMT+0200 (Midden-Europese zomertijd)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G90 ; absolute positioning
G1 X50 Y5 F4800 ; go to first probe point
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

---

; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.3.12 on Sun Sep 11 2022 20:16:12 GMT+0200 (Midden-Europese zomertijd)
M280 P0 S10 ; deploy BLTouch

---

; retractprobe.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.3.12 on Sun Sep 11 2022 20:16:12 GMT+0200 (Midden-Europese zomertijd)
M280 P0 S90 ; retract BLTouch

---

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.3.12 on Sun Sep 11 2022 20:16:12 GMT+0200 (Midden-Europese zomertijd)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X487 Y-465 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X-5 Y5 F6000 ; go back a few mm
G1 H1 X487 Y-465 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
G1 X50 Y5 F4800 ; go to first probe point
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

[JL-P]

everything is basicly standard from the configurator tool.

I removed the bltouch from my m3d quad and the one from my CR-10 Max including the cables.

but now after a complete weekend trying i gave up.

[jay_s_uk]

@jl-p is your bltouch really 100mm away from your probe in X and Y?
Your homing files look ok.

[JL-P]

@jay_s_uk no I tried something's. I though it was the location where it should probe because my bed start at 17. From the end stop

[Norder]

@jl-p
I also had problems with the BLTouch on exp.heater3.
I then connected exp.heater7 and since then everything is OK.
Somewhere in the depths of this forum or the Duet instructions I read something that could cause problems with exp.heater3.
Since it was all a long time ago, I can't tell you the reason for this and I just tried to find this info again... but without success.

If exp.heater7 is not yet occupied, it would be worth a test to reconnect the cable from exp.heater3 to exp.heater7 and to adapt the config.g.

Google Translate
-- Original Text --

Ich hatte auch Probleme mit dem BLTouch an exp.heater3.
Ich habe dann exp.heater7 angeschlossen und seitdem ist alles OK.
Irgendwo in den Tiefen dieses Forums oder der Duet Anleitungen habe ich mal etwas gelesen das es bei exp.heater3 zu Problemen kommen kann.
Da es alles sehr lange her ist, kann ich den Grund dafür nicht nennen und ich habe gerade versucht diese Info wieder zu finden... aber ohne Erfolg.

Wenn exp.heater7 noch nicht belegt ist, wäre es ein Test wert das Kabel von exp.heater3 auf exp.heater7 umzustecken und die config.g anzupassen.

[Phaedrux]

From your files it all looks ok, but you're saying when you send G30 the probe doesn't deploy? Where are your deployprobe.g and retractprobe.g files located? Where are your homing files located? They should be in the sys folder along side config.g. In the past I've seen someone have similar issues because the files they were editing were located in the macros folder, and the files that were actually being used were in sys.

[JL-P]

@norder Thx that did the trick.

Stil no idea why the other one isnt working because the default deployment works fine.

Thx for your help

[Norder]

@jl-p said in Duet 2 and BL Touch:

Thx for your help

very gladly.

I invested another 30 minutes this morning to find this information to prefer the Heater7 in certain cases.
Unfortunately I couldn't find the info again.

The info is also a few years old and is therefore more likely to be found on the dozuki server than on the duet3d server.

It's just too long ago to remember exactly.
I'm also a bit older (grandpa twice)

Maybe @dc42 knows more about why you should use Heater7 instead of Heater3 for the BLTouch in certain cases?
It had nothing to do with an expansion board though as I don't have one and the Heater7 info concerned me.
There was also no RRF3 for the Duet Wifi at the time.

It's brain terror when you can't think of certain things and you know roughly where they are... but you can't find them. Grrrr

Nice that your printer is working again.

[droftarts]

@norder I'm not sure if there was ever an issue with using heater 3! I have tested it many times, and never found an issue. The only mistake I have seen repeatedly, because the picture showing the connections isn't that great, was that users didn't connect to the heater 3 pin but to the pin above. It can look like the pin the yellow wire connects to is on the top row of pins, when it is actually the bottom row, in the picture below.

Ian

[JL-P]

@droftarts when moving back to heater 3 everything works also.

No idea what happened.

Thx all

Johan

[Norder]

@droftarts
That's a possibility I thought of at first too, but then I realized why I don't use Heater3 for my BLTouch.

In my case, I have always checked the Board-Diagram for every cable that I have connected to the Duet over the course of time.
Back then... yes, it's been a few years... my BLTouch on Heater3 didn't work.
Then I leave this info and switched to Heater7 and everything worked as requested.
I rule out 99.9% that I took the wrong pin at the time, because I checked it very often when it wasn't working.

Presumably every duet has a soul or a life of its own... for some like that for others like that !?

I hope that someone finds this info text or can confirm it... otherwise people still think I'm crazy or a storyteller. LOL

Google Translate
-- Original Text --

Das ist eine Möglichkeit an die ich auch zuerst dachte, aber dann fiel mir ein warum ich Heater3 nicht für meinen BLTouch nutze.

Ich in meinem Fall habe bei jedem Kabel welches ich im laufe der Zeit an den Duet angeschlossen habe, immer auch das Board-Diagram zur Kontrolle genommen.
Damals... ja es ist schon einige Jahre her... funktionierte mein BLTouch an Heater3 nicht.
Dann laß ich diese Info und wechselte auf Heater7 und alles funktionierte wie gewünscht.
Das ich zu der Zeit einen falschen Pin genommen habe, schließe ich zu 99,9% aus, denn ich habe dieses sehr oft kontrolliert in der Zeit wo es nicht funktionierte.

Vermutlich hat jedes Duet eine Seele bzw ein Eigenleben... bei der einen so bei der anderen so !?

Ich hoffe das irgend jemand diesen Infotext findet oder es bestätigen kann... sonst denken die Leute noch ich wäre verrückt oder ein Märchenerzähler. LOL