X carriage for J head Hotend with inductive proximity sensor E3D / Hexagon

I wanted to fit an inductive proximity sensor close to my hotend for automatic bed leveling this is the design I came up with.

the sensor is directly behind the hotend 20.575mm is the exact Y offset (from the center of the jhead nozzle to the center of the proximity sensor)

there is also an end clamp for use with a 25x25mm fan for the Hexagon all metal hotend, will probably work for other hotends also, you will have to glue the fan on as there wasn't enough space to put screw holes I m