bltouch v3.1 help😞

jobesynoob1234

Phaedrux

In config.g you have M280 P3 S10 I1 ; Alarm Release and Push-Pin down
But I don't think you want to deploy the pin at startup. I think S10 is just deploy, not alarm release. based on the Antclabs documentation: https://5020dafe-17d8-4c4c-bf3b-914a8fdd5140.filesusr.com/ugd/f5a1c8_d40d077cf5c24918bd25b6524f649f11.pdf

Instead, try adding this to the end which will clear any error state and retract the pin. You can also add that to the start of the homez and homeall

; BLTOUCH PREP
;
G4 S1 ; pause 1 second
M280 P3 S160 I1 ; Alarm Release and Push-Pin UP just in case it's in alarm and deployed
G4 S1 ; pause 1 second
M402	; Retract probe just in case it's still down

Your homeall will become this:

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2 on Mon May 13 2019 10:59:27 GMT+0100 (British Summer Time)
G91                     ; relative positioning
G1 Z5 F6000 S2          ; lift Z relative to current position
G1 S1 X-290 Y-290 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-290 Y-290 F360  ; move slowly to X and Y axis endstops once more (second pass)
G90                     ; absolute positioning
G1 X150 Y150 ; move probe to bed center. Change as needed.
G30 ; use the probe
G1 X0 Y0 ; return to home position

And the same basically for homez, since you need to move X and Y to position the probe, you need X and Y homed first. So homez becomes redundant. Just use homeall. You can use homez for some other specific homing situation later if you wish.

jobesynoob1234

@Phaedrux like this homez.g homeall.g config.g

Phaedrux

Yes, except that you want the BLTouch prep stuff to happen FIRST before anything else to ensure the pin is up and any error cleared.

jobesynoob1234

@Phaedrux right i have now cut/pasted it to the top on all 3time to test it

Phaedrux

Can you also manually test the deploy and retract probe files by sending M401 and M402? They should deploy and retract the pin.

Post your deployprobe.g and retractprobe.g files if they don't work.

jobesynoob1234

@Phaedrux things are getting a bit exciting now i hit home all it then homes x then y the moved to center and probed then the second time then ended like this was it supposed to do it slooooow

jobesynoob1234

@jobesynoob1234 retractprobe.g deployprobe.g

Phaedrux

Which part is slow?

It looks like it worked?

jobesynoob1234

@Phaedrux all of the moving part like a slug

Phaedrux

If you send the command to do the self-test does it run continuously until you interrupt it? or does it still fail with a flashing error?

How bout this for homeall then. Change these lines to add a feed rate and the G30 will first do a fast probe and then slower ones.

G1 X150 Y150 F6000            ; move probe to bed center. Change as needed.
M558 F600 A1 		; Dive fast once 
G30			; probe Z
M558 F120 A10 		; Slow second dive with more accuracy
G30			; probe z again
G1 X0 Y0  F6000               ; return to home position

jobesynoob1234

@Phaedrux is this right i couldnt find some of the lines homeall.g

jobesynoob1234

ooops forgot to say self test runs then stops after about 10 retract/deploy then stays solid red

Phaedrux

Yes that looks right

Phaedrux

@jobesynoob1234 said in bltouch v3.1 help:

ooops forgot to say self test runs then stops after about 10 retract/deploy then stays solid red

Looking at the BLTouch 3.1 manual it seems like self test is limited to 10 times now. So that's as expected.

jobesynoob1234

@Phaedrux well it worked faster probed center 3 times this time before going home so does this now mean i can sort my z offsets and G30 S1 should work

Phaedrux

Yes I think you're set now.

jobesynoob1234

this all probably could have bean easier if i could have uploaded videos

jobesynoob1234

I am soooo greatfull for all your help you have no idea how much stress you have wiped out my fingers are crossed still thank you so much

Phaedrux

Glad it's working out now. I should have taken a closer look at your homing files sooner. That was definitely part of the confusion.