securly BLTouch deploed as Trigger

Topenga

Hello,
is there a possiability to trigger the downwards movement of the Z-Axis until BLTouch niddle is in securly deployed and not before. Had this incident just twice during a long period but would like to ensure somehow that the nozzle is not chrashing into my bed. Alredy unscrewed the adjustment screw some turns but just to be safe on this side.
Danijel

Phaedrux

I'm not sure what you mean. What gcode are you executing when it crashes?

What is your dive height?

Share your probe config line?

Topenga

@phaedrux

Hello Phaedrux,

this schould be just for safty reasons.
The Z-Axis schould not punch downwards for Probing (BL-Touch) until the niddle of the BLTouch is not deployed....this is my wish.

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Sat Jan 08 2022 16:50:47 GMT+0100 (Mitteleuropäische Normalzeit)
G91 ; relative positioning
G1 H2 Z5 F2000 ; lift Z relative to current position
G0 H1 X-405 Y-405 F4000 ; move quickly to X and Y axis endstops and stop there (first pass)
G0 H2 X5 Y5 F6000 ; go back a few mm
G0 H1 X-405 Y-405 F800 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolut position
M401 P0 S1 ;Deploy probe
G1 X35 Y60 F6000 ;move X/Y in Probin position
;G1 H1 Z-405 F1000 ; move Z down for first probe until the endstop is triggered
;G1 H2 Z5.085 ; lift Z Probe for second probe cycle
;G1 H1 Z-405 F100 ; move Z down for second and last probe until the endstop is triggered
;G90 ; absolute positioning
;G92 Z0.443 ; set Z position to axis minimum (you may want to adjust this)
G30 ; home Z
M402 ;retrec Probe
G92 Z5.9

; Configuration file for Duet WiFi (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Thu Dec 30 2021 05:49:28 GMT+0100 (Mitteleuropäische Normalzeit)
; BLTouch
M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch
M558 P9 C"^zprobe.in" H2 R0.25 F150 T12000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y0 Z5.90 P25 ; set Z probe trigger value, offset and trigger height
M557 X35:300 Y65:300 S15 ; define mesh grid
;M280 P0 S10 deploy
;M280 P0 S90 retrac
;M280 P0 S160 reset

Is that somehow actionable?!?

Many Thanks in advance and really WoW how fast you are reacting!!!