Nova and Nova Plus Series X and Y Endstop Tests, Adjustment and Replacement

Preface:  The information below will cover testing the X and Y endstops to troubleshoot  X or Y axis motion issues on your Thunder Laser Nova Series machine. This article includes where to source replacement endstops and additional resources are linked to extend the troubleshooting steps.  This is a very long article with lots of visuals, so take your time to read and understand it completely. The endstops are 2 of the most critical sensors on the machine.