Arduino, GRBL and M-Code (M114)

Projects Interfacing w/ Software on the Computer
1

Hi everyone,

I'm kind of new to this, so I'm not very clear on all the details..

I am working with Arduino using G-Code commands, by uploading a GRBL library.
I'm trying to get the current position of the CNC that I'm using, and I understand that the way to do this is using M114 command..

But..! Everytime I try this, I get a message of "unsupported command" from arduino.

Does this mean that the command is not in the library?
Does anyone know how else I can get this information, or why this M114 is not supported?

Thank you so much!
Jasmine

2

I am working with Arduino using G-Code commands, by uploading a GRBL library.

But, I'm not going to tell you which one.

Does this mean that the command is not in the library?

It means that the library doesn't know how to deal with an M114 would be my guess. But it is only a guess.

3

jasmin287:
Does anyone know how else I can get this information, or why this M114 is not supported?

You need to study the GRBL documentation to get an answer to that question.

AFAIK GRBL only supports a subset of GCode commands.

You will probably get more information on a CNC forum or on the RepRap Forum where people are likely to be familiar with GRBL. This Arduino Forum is mainly for helping people write their own Arduino programs.

...R

4

Thanks, I was just making sure that it's not maybe a tweak in the Arduino that I don't know about..

Thank you for your help!

5

jasmin287:
Thanks, I was just making sure that it's not maybe a tweak in the Arduino

The Arduino is just the hardware on which the GRBL program runs. All the logic of the system is in the program. Changes to the Hardware might prevent a program from running but they could never disable a specific feature and provide an error message.

...R