Optical Endstop Bracket Holder Ender-3 Sensor

This is a bracket for an optical endstop sensor. It fits on the original position of the z-endstop of the Ender-3. Unlike other brackets I decided not to use an additional piece to bolt onto the printer, that would go inside the sensor. The metal of the Ender is 3mm thick, so is the gap of the sensor. For me the metal frame of the X-axis fits nicely into the gap.