A inductiv endstop for German Reaprap Neo. My original endstop had a tolerance of 0.07 to 0.08 mm. With this upgrade you will get a tolerance under 0.02mm, probably 0.01mm. The high of the first Layer varies by this tolerance with every homing of the z-axis. If you have to adjust the bed at the beginning of every print, because the high of the first layer is not correct. This upgrade is great for you. This part is an replacment for the original endstop. There is no need for any software update or additional hardware. All you need is: an Induktiv Sensor ( PNP Normaly open M8) a 3-pin Connector to connect it to the printrboard 2 Screws M3 at least 10mm long (the original wont fit) 2 nuts M3 Open the back side of the Printer. Unscrew the original endstop and disconnect it. Assemble the inductive sensor to this part. Shorten the wire, crimp the Connector. Mount the assembly at the hohles, where the original switch was attached. Connect the endstop to the board. !Test it! Adjust it from the front side. Use the two screws. Close the back cover.