GCODE reading an option?

Ranney1 commented 3 years ago

As requested in Issue 12 I think that it can be great if the plugin can 'read' the current GCODE send to the printer en act on an 'M112'

Background: if a user want to terminate the printer instantly, they can also send the GCODE: 'M112' to the printer. It will turn itself off directly. (This can also be triggerd by an plugin). So my idea was:

If an thermal runaway is detected, the printer will turn itself off ==> Connection is lost ==> Turn off power
If an plugin detects abnormality (extreme temps for example) it will send an M112 code to the printer ==> Turn off power
If an technical fault makes the printer is not responding anymore ==> Connection lost ==> Turn off power.
Or an technical fault makes the printer cannot stop heating ==> M112 is send ==> Disconnect power.

I think that this can make 3D printing a little bit safer!

Salamafet commented 3 years ago

I have made some test with the M112 code.

When I send this code to my printer, the connection is immediately interrupted. Is it the same way for all printers ?

Ranney1 commented 3 years ago

Hi,

Yes. Al marlin based printers will: -if 'emergency parcer enabled' directly turn off the motors, heaters and it will disconnect to host. Only a reboot wil make printing possible again.

if emergency parcer is not enabled, the printer will stop directly when the 'M112' code can be send (space in buffer). This means normally after some seconds.

Ranney1 commented 3 years ago

A little bit more info: https://marlinfw.org/docs/gcode/M112.html

Salamafet commented 3 years ago

Ok thanks, I will add an option for cutting down power when the connection is interrupted.

Ranney1 commented 3 years ago

Great! 👍 Really happy with this option! 👌

Salamafet commented 3 years ago

New release with the lost connection and M112 shutdown option :) Please reopen this thread if you have an issue with this release.

Salamafet / ophom

GCODE reading an option? #16