Bltouch with new firmware

Elliot

@aidar Thank you. Yes, the black wire is an extension of the yellow. I changed my deployprobe and retractprobe files and it is better.

Is there anything I should change in my config.g?
I was able to start a print. It only did one probe (in the front left corner) and then started to try and print. How can I make it do the probe test on all corners and in the middle?

aidar

I would remove all M918 commands from config, as you do not have 12864 display connected (its supported on Maestro board, not on Wifi), paneldue is connected, but that is differst thing and do not need that M918 command.

About probing - please post your homing files as well as slicer starting script.

Elliot

@aidar these are the homing files I have:

Homeall.g

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool on Sat Sep 29 2018 12:21:44 GMT-0700 (Pacific Daylight Time)
G91                     ; relative positioning
G1 Z2.5 F6000 S2        ; lift Z relative to current position
M98 Pdeployprobe.g      ; deploy mechanical Z probe
G1 S1 X-269 Y-261 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F6000          ; go back a few mm
G1 S1 X-269 Y-261 F360  ; move slowly to X and Y axis endstops once more (second pass)
G90                     ; absolute positioning
G1 X51 Y20 F6000        ; 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 S2 Z2.5 F100        ; lift Z relative to current position
;G90                    ; absolute positioning


M98 Pretractprobe.g     ; retract mechanical Z probe

homedelta.g

; Example Homing file for RepRapFirmware on delta printer

M117 Use https://configurator.reprapfirmware.org/ to set up your printer config

;G91							; use relative positioning
;******* Change F250 in the following line to F2500 when you are finished commissioning
;******* Change 320 in the following to a higher value if your Kossel has taller towers
;G1 S1 X320 Y320 Z320 F2500	; move all carriages up 320mm, stopping at the endstops
;G1 S2 X-3 Y-3 Z-3			; move all carriages down 3mm
;G1 S1 X6 Y6 Z6 F250			; move carriages slowly up 6mm, stopping at the endstops
;G1 Z-5 F2000				; down a few mm so that we can centre the head
;G90							; back to absolute positioning
;G1 X0 Y0 F2000				; centre the head and set a reasonable feed rate

homex.g

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool on Sat Sep 29 2018 12:21:45 GMT-0700 (Pacific Daylight Time)
G91               ; relative positioning
G1 Z2.5 F6000 S2  ; lift Z relative to current position
G1 S1 X-269 F1800 ; move quickly to X axis endstop and stop there (first pass)
G1 X5 F6000       ; go back a few mm
G1 S1 X-269 F360  ; move slowly to X axis endstop once more (second pass)
G1 Z-2.5 F6000 S2 ; lower Z again
G90               ; absolute positioning

homey.g

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool on Sat Sep 29 2018 12:21:44 GMT-0700 (Pacific Daylight Time)
G91               ; relative positioning
G1 Z2.5 F6000 S2  ; lift Z relative to current position
G1 S1 Y-261 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y5 F6000       ; go back a few mm
G1 S1 Y-261 F360  ; move slowly to Y axis endstop once more (second pass)
G1 Z-2.5 F6000 S2 ; lower Z again
G90               ; absolute positioning

homez.g

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool on Sat Sep 29 2018 12:21:44 GMT-0700 (Pacific Daylight Time)
G91              ; relative positioning
G1 Z2.5 F6000 S2 ; lift Z relative to current position
G90              ; absolute positioning
G1 X51 Y20 F6000 ; 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 S2 Z2.5 F100 ; lift Z relative to current position
;G90             ; absolute positioning

Slicer Script:

G28 ; home all axes
G29; BLTOUCH mesh generation
G92 E0.0
G1 Z5;
G1 X10 Y10 Z0 F6000;
G1 X60.0 E9.0  F1000.0 ; intro line
G1 X100.0 E12.5  F1000.0 ; intro line
G92 E0.0

aidar

I reccomend:
in your config M557 X50:200 Y50:200 S65 P3:3 remove either S or P parameter. As they both define probe spacing but in different way, having both of them may confuse all process. So M557 X50:200 Y50:200 P3:3 seems better.
In homeall.g remove M98 Pdeployprobe.g and M98 Pretractprobe.g commands. Firmware knows when to call them as you probe type is defined as bltouch(P9).
Delete homedelta.g file. Your printer is not delta, so you dont need it.
In your slicer script put M561 between G28 and G29 commands to cancel any mesh compensation before new probing.

Elliot

@aidar Thanks.

I tested out the BlTouch and it deploys and retracts perfectly.

I then tried to do a mesh probe and it does the first corner but it only pushes the bltouch halfway back into place. It then proceeds to go round the rest of the corners without trying to test with the bltouch. It just pauses for a second in each place without lowering et.

The error I get at the end is:
Error: Z probe already triggered at start of probing move

mendenmh

The probe not being pushed all the way on the touch means you may have set your probe offset wrong. The printer will give up probing if it has to go below the programmed low limit on z. If you are zeroed just about where the probe would switch, it might give up too early.

Elliot

@mendenmh When i home all axis it works perfectly. However, when I try to probe for mesh bed that's when I get an issue

Elliot

Dont know if it is also related, I have seen two different lines for M558 which one is correct and what does the 'H','R', 'A', and 'B' stand for?

M558 P9 H9 F120 R0.2 T18000

M558 P9 F100 H5 R0.2 T6000 A5 B1

aidar

Looks like you should start reading here : https://duet3d.dozuki.com/Wiki/Gcode#Section_M558_Set_Z_probe_type

Elliot

@mendenmh Thanks. How would I go about changing this?

aidar

Some more reading will help: https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe

Elliot

@aidar thanks. It is always good to refresh myself on that. That helped alot.

The one remaining issue I have is that the probe goes down on the first location on the bed. Then it goes to the next, and deploys the probe it then doesn't retract. It will then just go to the positions and not try to probe. It then gets an error. If I manually lift the probe after it then goes to the next location and the same thing happens.

After this is done, the bed is not leveled at all.

Phaedrux

What are you using for your M558 right now?
Do you get any error messages in the console?

Elliot

@Phaedrux

The M558 I. Am using is:

M558 P9 H5 F120 R0.2 T3000

The error I get is:

Error: Z probe already triggered at start of probing move

dc42

What do you have in your deployprobe.g and retractprobe.g files?
Please confirm that you have none of the following commands in any of your homing files or in bed.g:

M98 Pdeployprobe.g
M98 Pretractprobe.g
M401
M402

You can send M401 and M402 manually to test whether probe deployment and retraction is working, but you should always start with the probe retracted before running a command that does probing.

Elliot

@dc42 Thanks. All worked out in the end.

Seems there was something physically wrong with my bltouch.

when testing it out a few days ago it didn't retract properly and got bent. I rebent it and now everything works perfectly. must have been stuck inside and this unstuck it.