This is more of a work in progress. I have gone through quite a few designs and mounting options. The biggest problem is that the sensor needs to be locked in with the extruder. Most mounts that i have seen and or made have a tendency of bending and changing height. Also when cleaning or changing the tip of the extruder will change its depth. this is my best design yet but it still has its problems (the bracket that it is mounted to will sometimes bend which can change the probe height - i have added a bracket that keeps the stepper the same distance from the x axis and this has helped with accuracy) I will be detailing my changes to this design over the next month or so.