This is a simple bracket for a non-contact Z-probe that replaces the left-side, somewhat triangular, bracket of the X-Carriage. Update 14/05/2015 - I've added a customiser parameter that allows you to move the bracket part forward, so it should be possible to make it clear your left-hand X-motor.I used a "DC 6-36V 300mA PNP NO 3-wire Tubular Capacitive Proximity Sensor Switch 1-10mm" that I found on eBay for about £7. The print was made using an E3D Volcano with a 0.6mm nozzle, and some purple Faberdashery filament. You can tweak some of the settings such as the diameter of your particular probe. The setting BracketPosition moves the bracket part forward or backward, so you can make it clear any obstructions it might encounter.