BLTouch won`t home

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

Chrabban

@diy-o-sphere

it is a bit strange i know.

yea i know, i havent fixed that one, it sits in front of the hotend, i will put in the right numbers later

DIY-O-Sphere

@chrabban said in BLTouch won`t home:

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

Is the probe deployed? Does it stop moving if you hit the pin?

Phaedrux

If you send G92 Z10 to force it into a homed position so you can jog the axis, does it move the correct direction? -z moving the print head and bed closer? +z moving them farther away.

If it's moving in the wrong direction you'll have to change the direction of rotation in the M569 command for the z driver.

That could explain why a G30 would move it in the wrong direction.