This is a replacement kit for your K40.
Replaces your M2 nano controller and replaces the optic end stops with mechanical.
The CPU and board performance is more than enough for the K40 machines. No lost steps or data even on bigger engravings in fast speeds.
Plug and play kit!
Works with Lightburn software and other G-code capable softwares.
– BigThreeTech SKR 1.3 controller
– Stepper cables
– New end-stops
– Upgraded potentiometer control
– SD-card preconfigured for K40