I decided to swap my K40 controller for a GERBIL from awesome.tech. I considered the Cohesion 3D too. I’ve been using GRBL CNC controller with a few custom tweaks to the firmware for some time now but I want to see if the extra PWM resolution makes a difference. I just more familiar with the Atmel GRBL code…

While I was in there I added the Pause/Resume/Abort buttons. I kinda chewed up the label while drilling the button holes and the buttons just didn’t cover the mess. I printed a quick bezel to hide it and it made it look even better…

Just to be safe I also printed a small cone shaped washer for the toggle switch that switches between fixed and PWM control. I’ll label that later…

Upgrading a K40 for Engraving