BLTouch blinking light error

Weevil

When I use the BLTouch (3.0) as an endstop to home the z-axis it successfully stops the bed but goes into an error afterwards (blinking red light). I can reset by power cycling my Duet 3 board but that clears the homing data. Any suggestions? This is my code:

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Thu Feb 20 2020 16:55:51 GMT-0800 (Pacific Standard Time)
G91
G1 H2 Z5 F6000
G1 H1 Z-505 F180
G92 Z0
;G91
;G1 Z5 F100
;G90

Phaedrux

It's not meant to be used as an endstop. It's a probe.

Does it work correctly with G30?

Danal

I use a BL touch both as a probe and as an endstop for initial Z home. My homez.g is below.

I believe that G30 works much better than G1 Hx commands, with a BLt.

My /sys/homez.g:

; Home Z Axis

G90 G1 X150 Y150 F10000   ; Move to the center of the bed

M558 F500                ; Set the probing speed
G30
M558 F50                 ; Set a slower probing speed
G30

my /sys/deployprobe.g:

M280 P0 S10

And /sys/retractprobe.g:

M280 P0 S90

Weevil

@Danal That is awesome. I'll try it out.

Danal

Also, if you do get it in a blinking state, then M280 P0 S160 will reset it. I've considered putting that in my retractprobe.g as it appears to be harmless when no error is present. I haven't actually done that yet, still experimenting.

Weevil

@Danal The code did the trick. Homing Z works like a breeze. Thanks.