Configuration Z-Probe

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