G32 Error:´´ Z probe was not triggered during probing move´´

fcwilt

@barbarossa-cologne said in G32 Error:´´ Z probe was not triggered during probing move´´:

@fcwilt
ok I´m sry for that..
yes. It works (till the first probe point touches the Bl)

SO if the printer is just sitting there doing nothing and the BLTouch is far enough away from the bed so that the pin won't touch if it drops can you repeatedly raise and lower the pin using M401/M402 commands without any errors?

Frederick

dutti

@fcwilt
yes..

fcwilt

@barbarossa-cologne said in G32 Error:´´ Z probe was not triggered during probing move´´:

@fcwilt
yes..

OK good.

When the problem occurs is the pin hitting the bed when it tries to drop?

IF that happens it will cause an error.

The pin needs to be all the way down BEFORE the bed moves to touch the pin.

Frederick

dutti

@fcwilt
No. There is almost 1cm between the pin and the bed.

fcwilt

@barbarossa-cologne said in G32 Error:´´ Z probe was not triggered during probing move´´:

@fcwilt
No. There is almost 1cm between the pin and the bed.

SO the pin drops, does NOT touch the bed before it should, the bed moves towards the pin, touches the pin and THEN the error occurs?

Frederick

dutti

@fcwilt exactly

dutti

@barbarossa-cologne
and doing g32 it also comes to --: ´´ Z probe was not triggered during probing move´´
not when doing sinlge g30

fcwilt

@barbarossa-cologne said in G32 Error:´´ Z probe was not triggered during probing move´´:

@fcwilt exactly

OK it may be a wiring issue. I have read in more one post that redoing the wiring fixed a similar problem.

Frederick

See attached.

BLTouch Info.png

dutti

@fcwilt
thanks... it was the red cable
but there is still the problem with:

G29
Error: Z probe was not triggered during probing move

or:G32
Error: Z probe was not triggered during probing move

After the pin touches the bed the first probe point.
no flashing anymore or something else. just probing the first point and then it stops with this text.... help please.

fcwilt

@barbarossa-cologne

Well there are the 3 wires that control the BLTouch and the 2 wires the carry the signal FROM the BLTouch to the Duet.

So perhaps there is a problem with those 2 wires not making a connection or there is a wiring error with them.

Or it may be the P500 parameter in your G31 command. I use P25.

Frederick

dutti

@fcwilt
no wiring problem..... this time I triple checked everyting.
I try P500, now.

dutti

@fcwilt
new: G32
Error: Z probe already triggered before probing move started

dutti

@barbarossa-cologne
After reconnect the Bl it´s working fine...
started G32..... but the machine is doing G29. How can that be?
Usually G32 should be 4 probing points...
Is there something wrong in the G code?

I´m sorry to ask that much.... 80 percent of my questions are about the BL Touch.

fcwilt

@barbarossa-cologne

G32 invokes bed.g.

In bed.g you have G29 S3 with the comment "Clear bed height map".

You want to use S2 to clear the bed height map.

See if that makes a difference.

Frederick

dutti

@fcwilt thanks... I´ll try!

dutti

@fcwilt
same problem.... with G29 S2.
Also still a problem: After doing a single z probe, I have to reconnect the BL Touch before it´s working again. When doing G32, it´s doing G29. BUT then the BL is able to make a few probing points without stopping/ flashing.
I hate the BL haha

dutti

@barbarossa-cologne
is that normal.... doing G32 --> but the Duet Made a G29

fcwilt

@barbarossa-cologne

Hi,

Comment out everything in bed.g and add this M291 P"BED.G" R"BED.G" T0

From the DWC execute a G32.

You should get the popup message generated by M291.

As to the probe working sometimes and not others I would think perhaps the probe needs adjusting or the wiring is being affected by motion due to a bad crimp or almost broken wire.

https://duet3d.dozuki.com/Wiki/BLTouch_Troubleshooting

Frederick

dutti

@fcwilt said in G32 Error:´´ Z probe was not triggered during probing move´´:

Hi,
Comment out everything in bed.g and add this M291 P"BED.G" R"BED.G" T0
From the DWC execute a G32.
You should get the popup message generated by M291.

; bed.g
; Called using G32
; Called to perform True Autolevel using 4-point probe
;
; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 23 2020 22:36:44 GMT+0200 (Mitteleuropäische Sommerzeit)

M561 ; clear any bed transform
G29 S2; Clear bed height map
; Probe 4-point

M291 P"BED.G" R"BED.G" T0
G30 P0 X150 Y135 Z-9999 ; Front Right
G30 P1 X550 Y135 Z-9999 ; Front Left
G30 P2 X550 Y565 Z-9999 ; Back Left
G30 P3 X150 Y565 Z-9999 S4 ; Back Right

like this?

what do you mean with execute a G32 in combination of M291?
sry english is not my mother tongue. to be clear I have to aks. I had to long time problems with the BL.
Wiring should be fine.. is not the biggest deal at the moment.

fcwilt

Hi,

English is a problem - understood.

OK what I want to be sure is that bed.g is executing and nothing else is happening causing the G29 issue.

So I would like you to have in your bed.g file JUST the following - you can delete or comment out everything else

M291 P"BED.G is running" R"Click to exit" S1 T0

Invoking G32 from the Duet Web Control (DWC) should run bed.g and you should see the popup message and nothing else should happen.

As to the height map when you created it using G29 did you first do a G30 ?

The purpose of the G30 is to allow the firmware to determine exactly there Z=0 is.

Frederick