Welcome to the SeeMeCNC Community

I would like to save the PID autotune settings using the Gcode terminal but my version of firmware from SeeMeCNC doesn't recognize the M304 command. I was considering using M206 to save them directly to EEPROM but I don't know the positions for the Kp,Ki and Kd float constants. Using M503 also returns an "Unknown command" error.

I started this thread separate from http://forum.seemecnc.com/viewtopic.php ... 503#p98557
in order to isolate the issue to the missing commands.

Firmware 0.92.2
FW Date: 20161109

Why are these are not implemented in this firmware?

Here is my output:

-<-
->M503

<-ok 0
<-
<-Unknown command:M503
<-

Looks like in the prior versions of Repetier M503 worked as an alternate way to invoke M205. This alias seems to be gone now. Solution: use M205.

M304 was never there -- that only exists in Marlin-derived firmwares, so far as I know. As you suggested, M206 will work.

Thanks, Eric. I was successful at using M205 to read the EEPROM, find the PID positions and save them using M206 commands. I'll save these into the startup Gcode for my filaments whenever I profile them.

Any chance you can post a couple of samples that work? Thanks!