M function during move

Tell me how to implement the function while driving? It is desirable that it be recorded from the time or distance parameter to the end point.

Hm, is this example taken from a document? If so can you provide a link to it?

No. I painted myself in Adobe Illustrator :laugh:

I see. I don't think you will get this done with standard gcode.
Maybe with a python remap?

linuxcnc.org/docs/html/remap/remap.html#...ming-embedded-python

[edit]

There is a hal-pin that might be useful:

motion.distance−to−go OUT FLOAT

Distance remaining in the current move

Now I do that.
Using halcmd lcec.0.D2.dout-0 1
But may be I can use own new hal componet and any else for solving task?

sure, can't see why not. Do you need this for all moves or just for some?

Randomly. Now an external script is running that sends linuxcnc rsh command and switch output. To do this, I calculate the time at the script level. But if it is included in the G-code, it will be easier to calculate.

What about the distance to the end of the path, is that a constant value or does that change?

[edit]
I mean the "t" or "S" value in your picture.

Constant value. But to find this value need to conduct an experiment to find an acceptable. If calculate in script level I need to change a lot of parameters. If calculate in G-code only one


UPD
motion.distance−to−go It's that me need!!!

Is there a similar variable for time?

So, if you write a hal component that constantly switches a pin at the desired distance before reaching the end point you could use M64 P0 with an and2 block to "enable that signal to go out and then M65 P0 to disable the output again. Maybe you could even find a way to automatically disable the output after motion.distance-to-go as reached 0.
Your S value could be defined in the INI or in the GUI.

Just an idea.