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Update your K40 FluidNC shield

Written by Avataar120

If you are having troubles with your FluidNC K40 shield, you can proceed to update your K40 FluidNC shield with the latest version of the software and the latest version of the settings file for your machine.

To do so, you must connect to the shield via the web page.
See the instructions in this article : link (use with WEB interface)

K40 FluidNC firmware update

Download the latest firmware version (v4.3.4): link

Connect to the web interface: http://fluidnc.local/ or if it doesn’t work at the IP address indicated in the Lightburn console after starting the shield, for example http://192.168.1.234

Click on the FluidNC button (in the ribbon at the top of the interface)

Click on the orange button (Update the firmware wirelessly (OTA))

Then click on: select file, choose the firmware.bin file you just downloaded
Then click on the Update button

And confirm on the next popup by clicking YES.

The download of the latest firmware version of your shield will start:

Then the shield will restart and you will be able to see the new firmware version in the startup message in the Lightburn console or by typing $ss in the Lightburn console. See example below:

Update the configuration file for your machine

You can download the latest version of the configuration file for your machine here :

Last update : 10-sept-2022
2 axes machine (XY) : Lien
3 axes machine (XYZ) : Lien
4 axes machine (XYYZ) : Lien (Attention, for this last one, it will undoubtedly be necessary to adapt the file to your need since it is not a K40)

IMPORTANT: rename the file on your PC to config.yaml

Connect to the web interface: http://fluidnc.local/ or if it doesn’t work at the IP address indicated in the Lightburn console after starting the shield, for example http://192.168.1.234

Click on the FluidNC button (in the ribbon at the top of the interface)

Click on the green button (manage local files)

Click on the upload files button and choose the config.yaml file that you have just downloaded. Remember to rename the file as indicated in the previous step

Once the file is fully loaded, you can close the window by clicking on the Close button

Restart FluidNC by clicking on the red button (Restart FluidNC)

For information, you can see the parameters taken into account by FluidNC in these two ways:

$ss will give the startup message and most important settings for your machine

$cd will give a “copy” of the settings file taken into account by FluidNC

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Avataar120

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