error message at Probing

Peterkepompier
Messages : 22
Enregistré le : 26 mars 2019 13:09

error message at Probing

Message par Peterkepompier »

Whenever I probe a new tool I get an error "motion exceed cnc"
how do i solve that?
mstrens
Messages : 2611
Enregistré le : 27 févr. 2018 12:58

Re: error message at Probing

Message par mstrens »

GRBL wiki says "G-code motion target exceeds machine travel. Machine position safely retained. Alarm may be unlocked"

So the distance you put in your probe command is probably to big.
Peterkepompier
Messages : 22
Enregistré le : 26 mars 2019 13:09

Re: error message at Probing

Message par Peterkepompier »

I don't know what I'm doing wrong, I'm using the normal workflow;
setup -> home
Setup -> tool -> set change
Setup ---> tool -> set probe

and if i want to create something the workflow is

setup -> home
setup-> tool-> set xyz
setup -> tool-> z probe
Setup-> tool -> calibration

when changing tool I go
setup-> tool-> set change
setup-> tool -> probe
and then I get that error message
mstrens
Messages : 2611
Enregistré le : 27 févr. 2018 12:58

Re: error message at Probing

Message par mstrens »

Peterkepompier a écrit : 05 oct. 2020 16:58 I don't know what I'm doing wrong, I'm using the normal workflow;
setup -> home
Setup -> tool -> set change
Setup ---> tool -> set probe

and if i want to create something the workflow is

setup -> home
setup-> tool-> set xyz
setup -> tool-> z probe
Setup-> tool -> calibration

when changing tool I go
setup-> tool-> set change
setup-> tool -> probe
and then I get that error message
If you want to create something the workflow is

setup -> home
move the XYZ axis to the origin of the workpiece
setup-> tool-> set xyz
Setup-> tool -> calibration (this should perform automatically a probe over your fixed probe).

when changing tool you go
setup-> tool-> change (and not set change)
setup-> tool -> probe

Are you using a standard RS-CNC32 (with a Z travel of about 80mm)?
and then I get that error message
Peterkepompier
Messages : 22
Enregistré le : 26 mars 2019 13:09

Re: error message at Probing

Message par Peterkepompier »

the latest version, with this in config.h
#define _GO_PROBE_STRING "G4P0.0 \ n $ # \ n $ G \ n M5 \ n G4P0.5 \ n G53 G21 G90 G00 Z-2 \ n G53 G21 G90 G00 X% XY% Y \ n G30 \ n G21 G91 \ n G38.2 Z-70 F100 \ n G00 Z2 \ n G38.2 Z-3 F10 \ n G10 L20 P1 Z% Z \ n G53 G21 G90 G00 Z-2 \ n% M \ n "

and my workflow is not correct then i will give yours a try
Peterkepompier
Messages : 22
Enregistré le : 26 mars 2019 13:09

Re: error message at Probing

Message par Peterkepompier »

a question, get that it doesn't work yet, is it possible to make it with buttons like cmd1_sp-on?
mstrens
Messages : 2611
Enregistré le : 27 févr. 2018 12:58

Re: error message at Probing

Message par mstrens »

you can try but I am not sure it will work.
There are some special instructions in the line (begining with % like % XY% Y).
I do not remember if those special instruction are handled in buttons like cmd1...

Please note that the line of code that you put seems me wrong. There should be no space after %

Here the line from github web site
#define _GO_PROBE_STRING "G4P0.0\n $#\n $G\n M5\n G4P0.5\n G53 G21 G90 G00 Z-2\n G53 G21 G90 G00 X%X Y%Y\n G30\n G21 G91\n G38.2 Z-70 F100\n G00 Z2\n G38.2 Z-3 F10\n G10 L20 P1 Z%Z\n G53 G21 G90 G00 Z-2\n %M\n"
Peterkepompier
Messages : 22
Enregistré le : 26 mars 2019 13:09

Re: error message at Probing

Message par Peterkepompier »

ok thanks i'm going to try it
let you know if it succeeded
Peterkepompier
Messages : 22
Enregistré le : 26 mars 2019 13:09

Re: error message at Probing

Message par Peterkepompier »

no it doesn't work, get the error message "A2 motion exceed cnc" also during calibration.
and the gcode was not wrong, there is no space in it
what now???
mstrens
Messages : 2611
Enregistré le : 27 févr. 2018 12:58

Re: error message at Probing

Message par mstrens »

During calibration, it performs a probe with G38.2 Z-70
So, it moves Z down on max 70mm.
Could it be that it does not reach the probe within the 70mm?
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