BL Touch

fcwilt

Hi,

So did you try other values in the M280 commands to determine what is the correct value?

Frederick

Gost101

@fcwilt Lol, i dont even know what the M280 command is.

Gost101

I fixed the first error however now im getting this:

G28 Z

Error: Z probe already triggered at start of probing move
Error: Homing failed

fcwilt

@Gost101 said in BL Touch:

@fcwilt Lol, i dont even know what the M280 command is.

Well you should have system files deployprobe.g and retractprobe.g

deployprobe.g should have something like
M280 P0 S10 ; servo setting to drop pin on BLTouch v3.0

retractprobe.g should have something like
M280 P0 S00 ; servo setting to retract pin on BLTouch v3.0

The P parameter needs to be changed to match your setup.

Also do you have a G31 command somewhere else besides config.g?

The one there is strange. The P parameter should be 25 for the BL Touch.

The X and Y are likely not 0 - that would indicate the pin of the probe is exactly where the tip of the nozzle is.

The Z is likely not zero - that would indicate that when the probe triggers the Z position is Z=0.

My G31 looks like
G31 P24 X0 Y24.5 Z2.80

Yours needs to be updated to match your setup.

Frederick

peter247

@Gost101 Post your M122 result and show which version of the firmware you have installed .

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.1.1 running on Duet WiFi 1.02 or later
Board ID: 08DGM-95BLL-N6PSS-6JTD6-3SJ6K-K0UZJ
Used output buffers: 3 of 24 (20 max)

Gost101

@peter247 said in BL Touch:

M122

Here is the code you requested:
If your willing I have a disocrd that we could talk through at https://discord.gg/8RVDzx

4:15:21 AMM122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.03 running on Duet WiFi 1.02 or later
Board ID: 08DGM-917DA-G4MS8-6J1F4-3SN6S-1TV38
Used output buffers: 1 of 24 (8 max)
=== RTOS ===
Static ram: 25680
Dynamic ram: 93724 of which 0 recycled
Exception stack ram used: 388
Never used ram: 11280
Tasks: NETWORK(ready,524) HEAT(blocked,1236) MAIN(running,3820) IDLE(ready,160)
Owned mutexes:
=== Platform ===
Last reset 00:01:04 ago, cause: software
Last software reset at 2020-09-28 04:14, reason: User, spinning module GCodes, available RAM 11280 bytes (slot 2)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms, max retries 0
MCU temperature: min 27.7, current 27.9, max 28.3
Supply voltage: min 12.0, current 12.1, max 12.3, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max 84/586
Driver 1: standstill, SG min/max 83/615
Driver 2: standstill, SG min/max not available
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Date/time: 2020-09-28 04:15:19
Cache data hit count 235992943
Slowest loop: 4.17ms; fastest: 0.07ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move ===
Hiccups: 0, FreeDm: 169, MinFreeDm: 167, MaxWait: 34339ms
Bed compensation in use: none, comp offset 0.000
=== DDARing ===
Scheduled moves: 6, completed moves: 6, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
=== GCodes ===
Segments left: 0
Stack records: 2 allocated, 0 in use
Movement lock held by null
http is ready with "M122 " in state(s) 0
telnet is idle in state(s) 0
file is idle in state(s) 0
serial is idle in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 15.42ms; fastest: 0.00ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 2 of 8
- WiFi -
Network state is running
WiFi module is connected to access point
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.23
WiFi MAC address ec:fa:bc:25:b8:10
WiFi Vcc 3.46, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 23552
WiFi IP address 10.0.0.209
WiFi signal strength -46dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0

Gost101

@fcwilt
Heres my deploy and retract code:
Deploy:

M280 P3 S10 ; servo setting to drop pin on BLTouch v3.0

Retract:

M280 P3 S00 ; servo setting to retract pin on BLTouch v3.0

Config after some changes:

;config.g
; Configuration file for Duet WiFi (firmware version 2.03)
; generated by RepRapFirmware Configuration Tool v3.1.4 on Sun Sep 27 2020 23:42:26 GMT-0600 (Mountain Daylight Time) 

; General preferences
G90                                                ; send absolute coordinates...
M83                                                ; ...but relative extruder moves
M550 P"A.C.E."                                     ; set printer name
M669 K0                                            ; select Cartesian mode

; Network
M551 P"SpaceForceHu2020!!"                         ; set password
M552 S1                                            ; enable network
M586 P0 S1                                         ; enable HTTP
M586 P1 S0                                         ; disable FTP
M586 P2 S0                                         ; disable Telnet

; Drives
M569 P0 S1                                         ; X physical drive 0 goes forwards
M569 P1 S1                                         ; Y physical drive 1 goes forwards
M569 P2 S0                                         ; Z physical drive 2 goes backwards
M569 P2 S0                                         ; Z physical drive 2 goes backwards
M569 P3 S0                                         ; E 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 E415                     ; set steps per mm
M566 X1200.00 Y1200.00 Z24.00 E300.00              ; set maximum instantaneous speed changes (mm/min)
M203X9000.00 Y9000.00 Z180.00 E6000.00             ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z100.00 E5000.00              ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E1000 I50                      ; 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 X500 Y500 Z500 S0                             ; set axis maxima


; Endstops
M574 X1 Y1 S1                                      ; set active high endstops
M574 Z1 S2                                         ; set endstops controlled by probe


; Filament runout sensor
;M591 D0 P1 C3 S1 instead

; Z-Probe
M307 H3 A-1 C-1 D-1                                ; disable heater on PWM channel for BLTouch
M558 P9 H5 F100 T2000                              ; set Z probe type to bltouch and the dive height + speeds
M558 H30                                           ;*** Remove this line after delta calibration has been done and new delta parameters have been saved
G31 P25 X0 Y24.5 Z2.80                             ; set Z probe trigger value, offset and trigger height
M557 X15:485 Y15:485 S20                           ; define mesh grid

; Heaters
M305 P0 T100000 B4092 R4700                        ; set thermistor + ADC parameters for heater 0
M143 H0 S75                                        ; set temperature limit for heater 0 to 75C
M305 P1 T100000 B4092 R4700                        ; set thermistor + ADC parameters for heater 1
M143 H1 S560                                       ; set temperature limit for heater 1 to 560C

; Fans
M106 P0 S1.0 I0 F500 H1 T50                        ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P1 S0.0 I0 F500 H-1                           ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P2 S0.0 I0 F500 H-1                           ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off


; Tools
M563 P0 D0 H1 F0:1                         ; define tool 1
G10 P0 X0 Y0 Z0                            ; set tool 0 axis offsets
G10 P0 R0 S45                              ; set initial tool 0 active and standby temperatures to 45C


; Automatic power saving
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss

; Other settings
;G29 S1                                             ; Enable automatic bed mesh compensation
;M572 D0 S0.16                                      ; Enable pressure-advance
;M915 X Y S10 F1 R1                                ; Enable stall detection for X and Y axis with a sensitivity of 10 and report only
;M915 Z S0 F1 R1                                   ; Enable stall detection for Z axis with a sensitivity of 10 and report only


; Miscellaneous
;M501                                               ; Load saved parameters from non-volatile memory

Home All:

G91                     ; relative positioning
G1 H2 Z5 F9000          ; lift Z relative to current position
G1 H1 X-505 Y-505 F3600 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F9000       ; go back a few mm
G1 H1 X-505 Y-505 F600  ; move slowly to X and Y axis endstops once more (second pass)
G90                     ; absolute positioning
G1 X15 Y15 F9000        ; go to first bed probe point and home Z
G30                     ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91                    ; relative positioning
;G1 Z5 F150             ; lift Z relative to current position
;G90                    ; absolute positioning

Bed:

M561 ; clear any bed transform
G29  ; probe the bed and enable compensation

fcwilt

@Gost101

Hi.

You cannot use my values - they are specific to my hardware.

You have to determine values that are correct for your hardware.

The X parameter has to be the distance from the tip of your nozzle to the pin of the BL Touch along the X axis.

The Y parameter has to be the distance from the tip of your nozzle to the pin of the BL Touch along the Y axis.

The Z parameter has to be the Z position when the BL Touch triggers.

Frederick

Gost101

@fcwilt I roughly measured the X distance with calipers. the Y axis controls the bed going forward and backwards. How can I determine the Z value?

peter247

@Gost101

Have you tried moving to a different heater pin ?.
I could not get heater 3 working , so moved to heater 7.

Gost101

Ill move to heater 7, standby for code changes and status

Gost101

@peter247 I moved to heater 7, no change

peter247

@Gost101

Are you getting power and self test when you first give it power ?

Gost101

The pin does not drop or retract the bl touch is still blinking red while status code:

G28 Z
 
Error: Z probe already triggered at start of probing move
Error: Homing failed

Gost101

@peter247 Power and self test?

peter247

@Gost101 said in BL Touch:

still blinking red

That is a important bit to tell !!!!!

Gost101

This post is deleted!

peter247

@peter247

Self test is when you first switch on the machine / give it power , the pin will deploy than retract and go solid red.

Gost101

@peter247 It hasn't done that yet so far even after multiple reboots.

peter247

@Gost101

if it doesn't do that it is a bltouch fault and not a configuration fault.
pull the pin and see if it is bent