BLTouch won`t home

Chrabban

Hello everyone, i havent used my 3D printer for about a year. I wanted to get back into it and wanted to know if there was any firmware upgrades, and yes there was. 3.1.1. and now my BLTouch dosent work. i even did a total reset and used the RRF Config tool. but i couldn't get it to work.

before the update it looked like this

; Z-Probe
M307 H3 A-1 C-1 D-1 ; disable heater on PWM channel for BLTouch
M558 P1 C"zprobe.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y0 Z1.842 ; set Z probe trigger value, offset and trigger height
M557 X20:280 Y75:270 S20 ; define mesh grid

and now after the Config tool it is like this

M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch
M558 P1 C"^zprobe.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y0 Z1.842 ; set Z probe trigger value, offset and trigger height
M557 X20:280 Y75:270 S20 ; define mesh grid

I have tried a few things that i have seen from othere threds or youtube videos, it might be a very easy thing that is wrong but i just cant get it to work. The probe is on Z-prob in

i hope someone got the time to help
have a nice day all.

DIY-O-Sphere

@chrabban said in BLTouch won`t home:

M558 P1

That is the wrong probe type

Should be

M558 P9

Chrabban

@diy-o-sphere said in BLTouch won`t home:

M558 P9

sadly it didet work, something els might be wrong then

Phaedrux

Can you post your full config.g?
Also send M122 and M98 P"config.g" and post the results.
Also post your homeall.g

What exactly doesn't work?

Does the pin drop and retract at power on?

If you send M401 and M402 does the pin deploy and retract?

Chrabban

@phaedrux

At startup it does that lite out-in-out-in and then stays in and shines red. i also get an error about Z-stop
M401 and M402 dosent work

here is the M122

2021-05-02 11:46:28 M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.2.2 running on Duet WiFi 1.02 or later
Board ID: 08DGM-917DA-G4MS8-6JKD2-3SN6M-TTVR9
Used output buffers: 3 of 24 (14 max)
=== RTOS ===
Static ram: 23460
Dynamic ram: 73460 of which 24 recycled
Never used RAM 15136, free system stack 191 words
Tasks: NETWORK(ready,179) HEAT(blocked,308) MAIN(running,449) IDLE(ready,20)
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:01:28 ago, cause: power up
Last software reset at 2021-05-01 23:11, reason: User, GCodes spinning, available RAM 15104, slot 1
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
Aux0 errors 0,0,0
MCU temperature: min 22.4, current 27.1, max 27.6
Supply voltage: min 11.8, current 11.9, max 12.0, under voltage events: 0, over voltage events: 0, power good: yes
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: 2021-05-02 11:46:25
Cache data hit count 106020349
Slowest loop: 8.54ms; fastest: 0.21ms
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 3.9ms, 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
Heater 1 is on, I-accum = 0.0
=== 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: 17.49ms; 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 1.25
WiFi MAC address 60:01:94:2e:d5:7f
WiFi Vcc 3.33, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 23920
WiFi IP address 192.168.0.12
WiFi signal strength -54dBm, mode 802.11n, reconnections 0, sleep mode modem
Clock register 00002002
Socket states: 0 0 0 0 0 0 0 0

And

M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled
Error: Bad command: Z-Probe

I might have changed something in this trying to fix it

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Thu Apr 22 2021 13:01:55 GMT+0200 (centraleuropeisk sommartid)
G91 ; relative positioning
G1 H2 Z5 F12000 ; lift Z relative to current position
G1 H1 X-305 Y-275 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F12000 ; go back a few mm
G1 H1 X-305 Y-275 F360 ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z-405 F360 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z1 ; set Z position to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
G91 ; relative positioning
G1 Z5 F200 ; lift Z relative to current position
G90 ; absolute positioning

Chrabban

What dosent work is that it cant home, ethere with home all or by it self after X and Y is homed. dont know if the Bed-levelling works or not sens i cant home it

DIY-O-Sphere

@chrabban

Please post content of
retractprobe.g and deployprobe.g

Edit:
deployprobe.g
content should be:

M280 P0 S10

retractprobe.g
content should be:

M280 P0 S90

DIY-O-Sphere

@chrabban said in BLTouch won`t home:

G1 H1 Z-405 F360 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z1 ; set Z position to axis minimum (you may want to adjust this)

That's wrong for the Bl-touch
replace that with

G90                     ; absolute positioning
G1 X150 Y130 F6000        ; go to first bed probe point and home Z
G30                     ; home Z by probing the bed

Please also post content of homez.g

Edit:
But that alone will not solve the issue, you first have to get the probe to react to M401 and M402

Chrabban

@diy-o-sphere

Tnx for all the help, i will be home in a few hours i will test it then

Phaedrux

@chrabban said in BLTouch won`t home:

Error: Bad command: Z-Probe

Post your config.g. You're probably missing a ; to comment out a line.

@chrabban said in BLTouch won`t home:

G1 H1 Z-405 F360 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z1 ; set Z position to axis minimum (you may want to adjust this)

This is setup to use an endstop, not the probe. Replace those lines with

G90 ; absolute position
G1 X150 Y150 F6000 ; move probe to center of bed
G30 ; probe the bed with the probe

And your deployprobe.g and retractprobe.g files need to be in the /sys/ folder with the correct commands in them.

EDIT: @DIY-O-Sphere has ya covered.

Chrabban

@phaedrux Hello, i tried it and now it will home the Z axis but when the probe have probed the middle of the bed it just starts to go up and up and up any ideas ? The M401 and M402 works also by the way

DIY-O-Sphere

@chrabban
Please provide the config. g

Chrabban

@diy-o-sphere
here it is

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Thu Apr 22 2021 13:01:55 GMT+0200 (centraleuropeisk sommartid)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"CR-10" ; set printer name

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S0 ; physical drive 0 goes backwards
M569 P1 S0 ; physical drive 1 goes backwards
M569 P2 S0 ; physical drive 2 goes backwards
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 Z1600.00 E415.00 ; set steps per mm
M566 X900.00 Y900.00 Z120.00 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 S20 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X300 Y270 Z400 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop

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 X0 Y0 Z1.842 ; set Z probe trigger value, offset and trigger height
M557 X20:280 Y75:270 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 B0 S1.00 ; disable 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 B4725 C7.06e-8 ; 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 T45 ; set fan 0 value. Thermostatic control is turned on
M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H-1 ; set fan 1 value. Thermostatic control is turned off
M950 F2 C"fan2" Q500 ; create fan 2 on pin fan2 and set its frequency
M106 P2 S1 H-1 ; set fan 2 value. Thermostatic control is turned off

; Tools
M563 P0 S"Nozzle" 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
T0 ; select first tool

DIY-O-Sphere

@chrabban said in BLTouch won`t home:

; Endstops
M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop

Add that at the end of the section

M574 Z1 S2                                   ; configure Z-probe endstop for low end on Z

Phaedrux

What does your homeall look like now?

Chrabban

@phaedrux it looks like this

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Thu Apr 22 2021 13:01:55 GMT+0200 (centraleuropeisk sommartid)
; home Z by probing the bed

G91 ; relative positioning
G1 H2 Z5 F12000 ; lift Z relative to current position
G1 H1 X-305 Y-275 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F12000 ; go back a few mm
G1 H1 X-305 Y-275 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute position
G1 X150 Y150 F6000 ; move probe to center of bed
G30 ; probe the bed with the probe

; Uncomment the following lines to lift Z after probing
G91 ; relative positioning
G1 Z5 F200 ; lift Z relative to current position
G90 ; absolute positioning

Chrabban

@diy-o-sphere

now when it tries to home Z it goes upp insted of down to check bed lvl and wont stop, this worked before but it whold run away after the bed lvl check

Phaedrux

I don't suppose you could show a video of what it's doing?

DIY-O-Sphere

@chrabban said in BLTouch won`t home:

now when it tries to home Z it goes upp insted of down to check bed lvl and wont stop, this worked before but it whold run away after the bed lvl check

Can't get why....

Just one point to look at later on: Bltouch offset

G31 P500 X0 Y0 Z1.842 ; set Z probe trigger value, offset and trigger height

X0 Y0 can't be right, means Bltouch is mounted in the center of the nozzle

Chrabban

@phaedrux
sorry for the late awnser, sick kids has taken almost all of my time.
well it just homes y and x then goes to the center and goes of into space it dosent do anything els