Ender 3 Indicator and Feeler Gcode

These are gcode files for an Ender 3 to do feeler leveling and also indicator leveling. The feeler gcode places the nozzle directly over the bed screws for more accurate diagonal bed rocking. The indicator gcode places the indicator directly over accurate diagonal bed rocking points. Leveling using opposing corners makes leveling easier, faster, and more predictable.