This is an in-depth explanation of all the electrical and signal wiring for the NEJE Laser Engraver full-GRBL upgrade. Please see the first video (https://youtube.com/watch?v=2rbzI-d-bOA&t=2529s) for details of installing the new board and setting the driver voltage. All the wiring diagrams and images mentioned in the video are on the main GitHub page: https://github.com/xunker/neje_laser_upgrades Power […]