G30 S-1 is giving me heart stitches [SOLVED]

Veti

can you post a picture of the back of your board?

Veti

there is something really wrong.

i cant see a reason why G30 would cause a G0 or G1 to be executed.

if the axis are not homed i get this error.

Veti

maybe. do you have a deployprobe.g?

o_lampe

@Veti said in G30 S-1 is giving me heart stitches:

maybe. do you have a deployprobe.g?

Yes they are there (deploy and retract )
I never thought, they'd be executed without setting it up?
It would be a great relief, if it was that simple.
But still, after all the reading of everything related to mesh bed leveling, there was NO hint of deploy/retract....
I can test it right now, the next print is done...

Veti

@o_lampe

whats the content of deployprobe.g?

fcwilt

Hi,

A couple of questions.

What sort of Z probe do you have? How does it work? How is it mounted?
Why is the Z axis min set to -2?

Thanks.

Frederick

o_lampe

OK, I think we can call it SOLVED

To my defense:
The standard SD-card images contain a lot of unused macros or sys-files.
How do I know, I have to remove some of them to make G30 work.
Which it does now, that I renamed them dont-deploy-probe and dont-retract-probe
Those names should be standard on all SD-card images.
And only those who have to deploy a probe, they will check the wiki and it should mention to rename them to deploy-probe etc...

BTW: how can I call this thread solved?
I've already seen unsolved, but don't know, how that's done either.

o_lampe

@fcwilt said in G30 S-1 is giving me heart stitches:

What sort of Z probe do you have? How does it work? How is it mounted?

Why is the Z axis min set to -2?

It's a conductive probe with NPN output. It's mounted to the extruder assembly.
The Z-axis is -2 because it allowed me to adjust Z height easier.

Veti

@o_lampe said in G30 S-1 is giving me heart stitches:

The standard SD-card images contain a lot of unused macros of sys-files.

here is the standard content of the sd card

https://github.com/Duet3D/Duet-2-Hardware/tree/master/Duet2/SD Card Contents

it does not contain a retract and deploy script.

fcwilt

@o_lampe said in G30 S-1 is giving me heart stitches:

Which it does now, that I renamed them dont-deploy-probe and dont-retract-probe

Hi,

What was in deployprobe.g?

I added that file (just a M117 message) to my test setup and while it DID execute it didn't prevent G30 from working.

So I'm thinking it was the content of your delployprobe.g that was causing the problem.

Thanks.

Frederick

o_lampe

@Veti
Maybe they have changed that, but as I wrote earlier, I was glad to have found an old SD-card image for rrf2.0x

Anyway, A big thanks to @Phaedrux , @Veit and @fcwilt (in no particular order)
for their patience and time !

fcwilt

@o_lampe said in G30 S-1 is giving me heart stitches:

@Veti
Maybe they have changed, that, but as I wrote earlier, I was glad to have found an old SD-card image for rrf2.0x

Anyway, A big thanks to @Phaedrux ,@Veit and @fcwilt (in no particular order)
for their patience and time !

We are always glad to try to help and are even gladder (is that a word) when we actually do help.

Frederick

fcwilt

So did you check the contents of your delployprobe.g file?

Thanks.

Frederick

o_lampe

@fcwilt said in G30 S-1 is giving me heart stitches [SOLVED]:

even gladder (is that a word)

No Silly, the right term is more gladderer

@fcwilt said in G30 S-1 is giving me heart stitches [SOLVED]:

So did you check the contents of your delployprobe.g file?

; Probe deployment routine 
M564 S0				; don't apply limits
G1 X25 Y93 Z40 F10000	; put probe arm next to belt
G1 X-5 F500				; move probe arm across belt
G1 X12 F1000			; move probe back
G1 X0 Y0 F10000			; move to somewhere sensible
M564 S1					; apply limits again

I don't remember ever using that, although I had an Allen key Z-probe on my very first Delta.
I always deployed and retracted it by hand.

dc42

@o_lampe said in G30 S-1 is giving me heart stitches [SOLVED]:

Although I must admit that you are right with most of your comment, this line is correct for using the z-probe as endstop.

There is never any good reason for using M574 Z1 S2. Homing Z using a Z probe should always be done using G30.

The sole reason for the M574 S2 option is to support those printers that use the Z probe to home X or Y. This mostly applies to the Ormerod and Huxley Duo printers that were sold by RepRapPro.

o_lampe

@dc42 said in G30 S-1 is giving me heart stitches [SOLVED]:

There is never any good reason for using M574 Z1 S2.

That was only a momentary snapshot of the file. I tried the other options too.

fcwilt

@o_lampe said in G30 S-1 is giving me heart stitches [SOLVED]:

G1 X25 Y93 Z40 F10000 ; put probe arm next to belt

And there is the line that was triggering the error message.

You were in the process of using G30 to home the Z axis but that line tried to move on the un-homed Z axis.

Mystery solved.

Thanks for posting that.

Frederick