Hi,
can you upload the latest logfile inside the logfiles-folder?
What kind of controller you are using?
Which grbl version?
Connected via USB or Ethernet?
With USB most common problem is a bad shielded USB cable…
You find the location, when opening the About window from the menu:

Hi Svenhb,

Thanks for the kind and fast reply!!
can you upload the latest logfile inside the logfiles-folder? =Which log file!!?
What kind of controller you are using? = CNC shield with Arduino Uno!
Which grbl version? = 1.6.6.6
Connected via USB or Ethernet? =Through USB
With USB most common problem is a bad shielded USB cable… = Using good 4 core shielded wire with proper soldering etc!

You click on the path below “Data Path” to open the data folder, then open the logfiles folder and look for “logfile.txt”

Also check your grbl-setup – all ok?

Hi Sevnhb,

logfile.txt

I have attached the pic and log file..

In the log files i have found multiple log files named log_20220600.0 and .1 and .2 and .3 and .4 and .5 etc

The logfile you sent is very short, either you look for an older one with higher file size, or you send logfile.txt right after the described problem occured….
With each start of GRBL-Plotter, the old logfile.txt will be renamed and a new logfile.txt will be created.

oka, then this is the higher log file size i have right now!
log_20220621.5.txt
!

Ok, so I found:
grbl ERROR ‘error:33′ Motion command target is invalid. for
G3X119.531Y-16.023I-5.000J0.000’ lineNr:139

Can you try to send Gcode from an imported SVG or DXF file? So I know the GCode is ok…

Quick dimension test 2.gcode.txt

Oka, this is the gcode i used it to run in my machine.. Infact not only this gcode but other smaller gcodes also didnt work with me recently. Either the Missing real time error pops up or suddenly machine stops and Kill alarm pops up within some seconds. And when i see the co ordinates (XYZ) on the plotter, even that would have jumped and would showing different.

You mean GRBL-Plotter was working with your machine and then from one day to the other the problem occurs?

Either the Missing real time error pops up or suddenly machine stops and Kill alarm pops up within some seconds.

I think it ia a problem with your electronic, can you try without motor-shield to avoid noise?

I could run your code on an Arduino nano – without connected hardware – without an error. After 5 minutes I stopped.
Also line 139 was processed without error.

I think it ia a problem with your electronic, can you try without motor-shield to avoid noise?

I havn’t fixed any Motor yet to my machine as it is running now just with spring-PEN on paper to check the dimensions of the drawn drawings.

What happens, if you just check your code?

Yes, i just the code and it finished successfully, but again i ran the code and i got an error of Missing X real time issue and also i saw that the picture view is shifted inappropriately as shown in the image!

So, just “Check” is ok, but real streaming not – right?
Your coordinates also looking wred, I assume strong communication issues if your stepper motors are in use…
You may check your power-supply – perhaps voltage drop-down at the arduino, when powering the stepper motors?

I will check once that sir and get back to you soon.

Hi Svenhb, i have checked the voltage drop-down at the arduino side and i dont see any issues there as it is passing 23.8v from the power supply to the shild side, but still getting an error now as shown in image! Missing X real time status!

Do you use the regular grbl version from here?: https://github.com/gnea/grbl
Or a version I deliver with my setup?
The problem is:
GRBL-Plotter sends frequently a ‘?’ (https://github.com/gnea/grbl/wiki/Grbl-v1.1-Commands#ascii-realtime-command-descriptions)
To get the actual tool coordinates (https://github.com/gnea/grbl/wiki/Grbl-v1.1-Interface#real-time-status-reports)

But your system is not responding during gcode streaming…

I’m using the regular grbl version 1.1 from the link you have mentioned. The only changes i have done in the code is in config.h i.e., i have commented the VARIABLE SPINDLE to make my Z-axis work properly.

Can you upload your hex-file (perhaps zipped) so I can try it on my arduino-nano to see if the same problem occurs?

You mean just the config.h file or complete grbl 1.1 folder?
Attached complete grbl folder!
grbl-1.1h.20190825.zip

I mean the data you upload to your arduino, some how you can extract the hex-file from the Adruino-IDE.
Did you try to upload an other grbl version (e.g. the original one), perhaps your change in config.h is the reason…

How to ulpoad a hex-file via Xloader: https://grbl-plotter.de/index.php?id=quick-guide

Oh oka..Actually i have uploaded the grbl upload file from this above zipped file and i have uploaded through using Arduino IDE.

As you mentioned i will try uploading this attached hex-file in my Arduino Uno using X-loader and try running my machine.

BTW: you can watch the status reports, when enabling this checkbox. If you start streaming does they stop?
Note: this feature slows down the streaming process…

Hi Svenhb,

I have uploaded the hex-file using X-loader as you mentioned (I couldn’t able to do homing because the Z-axis limit switch is not working here now after uploading the hex-file into the UNO and also i couldn’t able to edit the code now and its fine).

But now i didnt see the Missing X real time status report now but before the code starts running ‘m facing the Kill Alarm issue now

!

Just press “Kill alarm”

As soon as i press the Kill Alarm, the tool co ordinates will change and move in some weird direction and start from there.

Then do a hard-reset and the coordinates will be set to “0”

Hi Svenhb, as you said i have done hard-reset and luckily it ran for some time like for 9:56mins (1st time it ran too long). Then again it got stopped in running condition because of sudden Kill Alarm as shown in pic and also all the co-ordinates became 0.00 in the same stopped position.

.