This was a one day build. I leave my printer running unattended and I know that others in my home would have trouble finding the reset button or off switch if/when something went wrong. Solution, add a big friendly stop button. I have built several arcade machines over the years, so I had plenty of control panel buttons. This is a 46mm 12V red button. I pulled apart the switch and swapped the built in resistor to be 100 ohms, so I could run from 5V. Prusa’s 3D printers are open source. Even better, they design their 3D printed parts using openscad. My favorite 3D CAD program. https://github.com/prusa3d/Original-Prusa-i3/tree/MK3S I grabbed…