Yet another BLtouch problem

[Gixxerfast]

@macgyver If you have the expansion breakout board. From the documentation:

"If you have a Expansion Breakout Board, it's !exp.heater6 or !exp.heater7 ('!' inverts the output, and is needed)."

Example:

M950 S0 C"!exp.heater6" ; Duet 2 WiFi/Ethernet + BoB

Could this help?

[Macgyver]

No, I don't have the duex

I am using the connector where the duex would plug into. I am using a couple of DuPont connectors to use the 3 connections I need within it.

[Macgyver]

I did just try it with the !, still does not function. Updated line below

; Z-Probe
M950 S0 C"!exp.heater7" ; Create GPIO port S0

[Gixxerfast]

@macgyver Isn't this lonely one a bit strange:

M558 P0 

I would remove that as I guess it redefines K0 as there's no zprobe?

[Macgyver]

@Gixxerfast

I agree, Cannot remember at this point why I had it there.

I have commented it out and restarted it. Still no blue light and no response from M401/402 or the macros

I have it plugged into Heater7 and I have the pin called
M950 S0 C"exp.heater7" ; Create GPIO port S0

is this correct or should I refer to it as PWM5 I believe?

[Gixxerfast]

@macgyver Try to remove the negation if you haven't already

EDIT: Oh, you did already.

; Z-Probe
M950 S0 C"exp.heater7" ; Create GPIO port S0

If that doesn't work we'll have to wait for someone who knows about the Duet 2:s

Btw, what kind of BLTouch do you have. Can you trust the wire colours. Mine is a genuine BLTouch but sold by Creality and the wire colours are completely different.

Also, blue light. I have no blue light on my bltouch only the red glow (I haven't seen any anyway).

[Phaedrux]

@macgyver said in Yet another BLtouch problem:

M574 Z1 S1 P"!Z_PROBE_IN" ; configure active-high endstop for low end on Z via pin !zstop

Remove this line entirely.

@macgyver said in Yet another BLtouch problem:

M558 P0

Remove this line as well.

Can you show a photo of the wiring?
Have you tested the wiring for continuity with a multimeter?
Can you verify that your deploy and retract macros are located in the /sys folder?

[Macgyver]

hi @Phaedrux

I have removed completely both lines you mentioned.

I am attaching a photo of the wiring. Currently, this is basically a retro install to a D600 so it's a bit of a beast to move around. To eliminate a wiring issue through the drag chain I have used an official BLtouch and the short wiring that comes with it to jack straight into the board. I did a sanity check and verified the wiring of the short harness and it's good.

I looked in my System menu on my DWC and the deploy and retract macros are in the same folder physical folder as the config.g.

I would have to yank the SD card to absolutely verify if you would like it.

Just noticed something odd though. I have a deployprobe and retractprobe macro, as well as a deployprobe.g and a retractprobe.g. Im gonna pull the card and verify locations.

Thanks for giving me a hand with this.

[Gixxerfast]

@macgyver But can you run the M280 P0 S10 and/or M280 P0 S90 directly? If not, maybe you could try with heater3 ?

[Phaedrux]

Can you also send M122 and M98 P"config.g" and post the results?

[Macgyver]

the Deploy and retract macros were in the macros folder. I have made a copy of them and now they are located in both macro and sys folders.

Rebooted the printer and still nothing.

If I go to the next step and type; M280 P0 S10 which is out of the deploy macro then still nothing happens. That being said it stands to reason that something in my config.g is incorrect?

M950 S0 C"!exp.heater5"; assign GPIO port 0 to heater5 on expansion connector, servo mode

• this seems correct as I am connected to the Heater 5 output on the expansion connector.

M558 P9 C"^zprobe.in" H5 F120 T6000 ; set Z probe type to 9 BL Touch and the dive height + speeds

• this one is telling the Duet where the input of the trigger is going, which technically should be used until after the probe gets deployed. But if not configured correctly will prevent the blue light from coming on, which is true in my case. No blue light at all. Only red

[Macgyver]

other output requested is as follows

12/17/2021, 5:41:15 PM M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.3 (2021-06-15 21:44:54) running on Duet WiFi 1.02 or later
Board ID: 0JD0M-9K662-MGPSS-6JKD2-3SJ6J-1ASYW
Used output buffers: 3 of 24 (21 max)
=== RTOS ===
Static ram: 23876
Dynamic ram: 75152 of which 12 recycled
Never used RAM 12520, free system stack 170 words
Tasks: NETWORK(ready,13.5%,233) HEAT(delaying,0.0%,314) Move(notifyWait,0.1%,329) MAIN(running,86.3%,403) IDLE(ready,0.1%,29), total 100.0%
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:14:02 ago, cause: power up
Last software reset at 2021-12-14 08:54, reason: HardFault invState, GCodes spinning, available RAM 15168, slot 2
Software reset code 0x4063 HFSR 0x40000000 CFSR 0x00020000 ICSR 0x00400003 BFAR 0xe000ed38 SP 0x2001ff60 Task MAIN Freestk 31241 ok
Stack: 20011a00 0000f76e 00000002 00000000 00000f79 00409be9 00000000 200f000f 00000000 20004c8c 0000c0f7 00000000 00000001 0040cac3 00000000 00000000 0000c0f7 0045acef 00000000 20005cd8 00000001 40080000 00030d41 00000000 00000001 00000407 20004c8c
Error status: 0x00
Step timer max interval 0
MCU temperature: min 14.6, current 25.3, max 25.5
Supply voltage: min 24.1, current 24.2, max 24.3, under voltage events: 0, over voltage events: 0, power good: yes
Heap OK, handles allocated/used 99/0, heap memory allocated/used/recyclable 2048/4/4, gc cycles 0
Driver 0: position 0, standstill, SG min/max not available
Driver 1: position 0, standstill, SG min/max not available
Driver 2: position 0, standstill, SG min/max not available
Driver 3: position 0, standstill, SG min/max not available
Driver 4: position 0, standstill, SG min/max not available
Driver 5: position 0
Driver 6: position 0
Driver 7: position 0
Driver 8: position 0
Driver 9: position 0
Driver 10: position 0
Driver 11: position 0
Date/time: 2021-12-17 17:41:14
Cache data hit count 4294967295
Slowest loop: 5.15ms; fastest: 0.17ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Storage ===
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest read time 0.6ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 83, maxWait 0ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is idle in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger is idle in state(s) 0
Queue is idle in state(s) 0
LCD is idle in state(s) 0
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 73.61ms; fastest: 0.00ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 1 of 8

• WiFi -
  Network state is active
  WiFi module is connected to access point
  Failed messages: pending 0, notready 0, noresp 0
  WiFi firmware version 1.26
  WiFi MAC address 40:f5:20:0d:a9:ae
  WiFi Vcc 3.31, reset reason Turned on by main processor
  WiFi flash size 4194304, free heap 21488
  WiFi IP address 192.168.66.46
  WiFi signal strength -62dBm, mode 802.11n, reconnections 0, sleep mode modem
  Clock register 00002002
  Socket states: 0 0 0 0 0 0 0 0
  12/17/2021, 5:40:55 PM M280 P0 S90
  12/17/2021, 5:40:46 PM M280 P0 S10

[Macgyver]

@phaedrux said in Yet another BLtouch problem:

M98 P"config.g"

12/17/2021, 5:43:26 PM M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled
Error: bad grid definition: Too many grid points; suggest increase spacing to 28.5mm
Error: in file macro line 73 column 33: M563: expected number after 'F'
Error: Tool 0 not found
Error: Tool 0 not found

Interesting, does this mean it's not seeing the probe at all? Guess kinda makes sense with no blue light...

[Phaedrux]

@macgyver said in Yet another BLtouch problem:

this seems correct as I am connected to the Heater 5 output on the expansion connector

I think you should double check that with the wiring diagram.

https://duet3d.dozuki.com/Wiki/Duet_Wiring_Diagrams

[Macgyver]

interesting development

I have updated the grid spacing to 28.5 as suggested in the last output.
I have removed the F switch on the M563 on line 73.

Now the error message has changed substantially

M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled
Error: Pin name needed for switch-type endstop on Z axis

Pretty sure we are getting close to this.

[Macgyver]

So I just did the following change, I know that @Phaedrux suggested that I remove the line but I'm trying to understand where this error is being generated from

I removed Line 1
M574 Z1 S1

and replaced it with line 2
M574 Z1 S1 P"!zstop"

Now I am not getting any error at all

M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled

I am still getting a solid red light on the BLtouch but no blue at all. My understanding is the blue light is your confirmation the "sig" or yellow wire is functional on the board? that being said if I am correct it's not seeing the "rdy" on the heater5 pin on the EXP connector.

I did double-check the wiring on the EXP and I was off by a pin so that is now confirmed to be in the correct location.

[Phaedrux]

@macgyver said in Yet another BLtouch problem:

I did double-check the wiring on the EXP and I was off by a pin so that is now confirmed to be in the correct location.

Ok, so now does the deploy and retract work when sending M401 and M402?

[Phaedrux]

@macgyver said in Yet another BLtouch problem:

M574 Z1 S1 P"!zstop"

This is fine, but if you have no actua endstop connected to the zstop pins you'll end up with more problems if you ever tried to actually home the Z axis with an endstop movement command. (G1 H1 Z)

[Macgyver]

I've gone the next step, I have a new Duet 2 board, just sitting on my desk, I have moved the firmware over to it and flashed it at 3.3.

Its a little easier to move pins around and troubleshoot with the board on my desk instead of at the bottom of a big ol printer.

I have replicated the current install of the board in the printer and still getting the same symptoms.

I have put an M401 and M402 at the end of my config.g so if the pin deploys and stows 3 times on startup it should be working fine. I have used a new BLtouch, New short harness for the BLtouch.

The only thing I have hooked to it is the BLtouch and an i7 screen. I also wanted to eliminate the possibility that the board is bad in the printer and I think this is the best way to do it.

To give updates, I have tried heater 5,3, and 8. None of them change any of the symptoms. M401 and M402 do not work.

[Phaedrux]

Can you show your current config and photo of the wiring?