You have bought a 3 driver K40 shield, so you have received :

One PCB with all electronic components already soldered, FluidNC already installed. The shield has been tested on my own K40 with my motorized bed.

You’ll have to install & configure Lightburn : link

It’s very important to follow carefully this article for installation guide : link

If you DON’T have a motorized bed, please deactivate the homing of Z axis (instructions in the same article – Z-axis adjustment section)

Please take the time to read all instructions to avoid damaging your K40 or your new shield 🙂

In case of issue, please read first the troubleshooting post : Link to post
And to the upgrade your shield one : Link to post

Thank you very much again !

Avataar120
Discord : Avataar120#7932