Configuration Z-Probe

Stealthy_TT

And iirc s2 is for z probe right? I’m not home to check my config for it but that’s what I believe i set for mine.

dc42

To use a Z probe for Z homing, use a G30 command, not a G1 S2 command. See the first item in https://duet3d.dozuki.com/Wiki/FAQ.

Stealthy_TT

@dc42

You are correct but I’m sure you already knew that haha. I have a g30 command in homeall.g

peirof

Hi,

after some test... i have cheked when i send G30 S-1, and put an obstacle in ZProbe.... *** STOPS THE HEAD MOVEMENT***... this discards a fault to Zprobe, and bad conection....

IF:

When printer power on, ZProbe blinks correct.
When by console send G30 S-1, printer head stops with a obstacle
When try calibrate, Zprobe DON'T stops printer head movement...

Why?

A- Something is wrong in bed.g?
B- Something is wrong in config.g?
C- Le falla "lajuntadelatrocola"

What can i do?

Latest test are made with Mini IR

Copy bed.g i am using

*; bed.g
; called to perform automatic delta calibration via G32

M561 ; clear any bed transform, otherwise homing may be at the wrong height
G28 ; home the printer

; bed.g file for RepRapFirmware, generated by Escher3D calculator
; 16 points, 6 factors, probing radius: 140, probe offset (0, 0)
; bed.g file for RepRapFirmware, generated by Escher3D calculator
; 16 points, 6 factors, probing radius: 125, probe offset (0, 0)

G30 P0 X-67,5 Y117 Z-9999 H0
G30 P1 X67,5 Y117 Z-9999 H0
G30 P2 X135 Y0 Z-9999 H0
G30 P3 X67,5 Y-117 Z-9999 H0
G30 P4 X-67,5 Y-117 Z-9999 H0
G30 P5 X-135 Y0 Z-9999 H0
G30 P6 X0 Y-90 Z-9999 H0
G30 P7 X-77,95 Y-45 Z-9999 H0
G30 P8 X-77,95 Y45 Z-9999 H0
G30 P9 X0 Y90 Z-9999 H0
G30 P10 X77,95 Y45 Z-9999 H0
G30 P11 X77,75 Y-45 Z-9999 H0
G30 P12 X0 Y45 Z-9999 H0
G30 P13 X22,5 Y0 Z-9999 H0
G30 P14 X-22,5 Y0 Z-9999 H0
G30 P15 X0 Y0 Z-9999 S6*

Stealthy_TT

@peirof said in Configuration Z-Probe:

Hi,

after some test... i have cheked when i send G30 S-1, and put an obstacle in ZProbe.... *** STOPS THE HEAD MOVEMENT***... this discards a fault to Zprobe, and bad conection....

IF:

When printer power on, ZProbe blinks correct.

When by console send G30 S-1, printer head stops with a obstacle

When try calibrate, Zprobe DON'T stops printer head movement...

Why?

A- Something is wrong in bed.g?
B- Something is wrong in config.g?
C- Le falla "lajuntadelatrocola"

What can i do?

Latest test are made with Mini IR

Copy bed.g i am using

*; bed.g
; called to perform automatic delta calibration via G32

M561 ; clear any bed transform, otherwise homing may be at the wrong height
G28 ; home the printer

; bed.g file for RepRapFirmware, generated by Escher3D calculator
; 16 points, 6 factors, probing radius: 140, probe offset (0, 0)
; bed.g file for RepRapFirmware, generated by Escher3D calculator
; 16 points, 6 factors, probing radius: 125, probe offset (0, 0)

G30 P0 X-67,5 Y117 Z-9999 H0
G30 P1 X67,5 Y117 Z-9999 H0
G30 P2 X135 Y0 Z-9999 H0
G30 P3 X67,5 Y-117 Z-9999 H0
G30 P4 X-67,5 Y-117 Z-9999 H0
G30 P5 X-135 Y0 Z-9999 H0
G30 P6 X0 Y-90 Z-9999 H0
G30 P7 X-77,95 Y-45 Z-9999 H0
G30 P8 X-77,95 Y45 Z-9999 H0
G30 P9 X0 Y90 Z-9999 H0
G30 P10 X77,95 Y45 Z-9999 H0
G30 P11 X77,75 Y-45 Z-9999 H0
G30 P12 X0 Y45 Z-9999 H0
G30 P13 X22,5 Y0 Z-9999 H0
G30 P14 X-22,5 Y0 Z-9999 H0
G30 P15 X0 Y0 Z-9999 S6*

Did you also place the code for z probe in homedelta?

Dougal1957

@peirof why is there a * on the s6 param on the last line ?

peirof

Hi,

In homedelta.g... it's mecessary place code? Homing a Delta, there is with endstops, No?...

Delta dont use Zprobe for Homing. No?

Dougal1957

@peirof No delta doesn't use the Z Probe for homing.

peirof

@dougal1957

eee... i have try to put that text in Italic, with forum web app... but dont reconised...

the *, there isn't in bed.g...

Dougal1957

@peirof OK it just looked strange!

dc42

Please test the Z probe with a G30 command as described at https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe.

Stealthy_TT

@dougal1957 said in Configuration Z-Probe:

@peirof No delta doesn't use the Z Probe for homing.

Makes sense, like I said above I don’t have a delta. Now I know.

Dougal1957

@stealthy_tt yeah on a delta it always homes to max Z so the probe can't be any further away from the bed if you tried but if you've never had one then you wouldn't know that fact

peirof

@dc42

Hi... I haved do these test, send by console G30 S1... and zprobes WORKS.. Míni Ir and Bltouch.... But calibrate dont works

peirof

What test i can do for discard problems?

So far, from the tests I have done, I think two things can be ruled out:

1- That the z-probes (both BlTouch / Mini IR) are damaged
2- That is a problem of the wiring

It seems an error in the configuration .... but I have checked it several times, and it seems that everything is fine ....

One test I can do is change the firmware, although I do not think that's the case, since the Z-Probes, were working with this.

dc42

So bed probing works when you do a single G30 without parameters - correct?

If yes, but the hot end crashes into the bed when you run G32 to auto-calibrate a delta, then the crash is probably occurring not when actually probing, but when the firmware positions the probe at the desired XY coordinates with Z=dive height. The solution is:

Check that your tower steps/mm is correct. 200mm of commanded Z movement should produce 200mm of movement.
Check that the homed height (H parameter in the M665 command) is equal to the height of the nozzle above the bed when all 3 endstop switches are triggered, to within 10mm or better. Make sure the value in config.g is not being overridden by another M665 command in config-override.g.
Until you have determined the correct M665 parameters, increase the dive height (H parameter in M558) to a large value, for example 50mm.

peirof

@dc42 said in Configuration Z-Probe:

the hot end crashes into the bed when you run G32 to auto-calibrate a delta, then the crash is probably occurring not when actually probing, but when the firmware positions the probe at the desired XY

Hi,

until 1 hour ago, i have no test.... but seems to be this

"...Until you have determined the correct M665 parameters, increase the dive height (H parameter in M558) to a large value, for example 50mm...."

thanks Steve....

P.D.: If you come to Valencia (Spain), you are invited to a" Paella Valenciana".

dc42

@peirof said in Configuration Z-Probe:

P.D.: If you come to Valencia (Spain), you are invited to a" Paella Valenciana".

The black rice one? My favourite sort!

peirof

@dc42

That's similar to the original E3D v6 extruder, there are Chinese copies that are not bad ... Well, in the "Paella Valenciana" something similar happens, the original "paella of chicken and rabbit rice" .... the black rice. .. is very good with "ajoaceite" (A kind of mayonnaise with garlic), but ... it is not the original