Parts for a RepRap Prusa i3 mount using a load cell for Z-probing.
The electronics attaches to the back mount, and the extruder to the front mount.
The files are designed with a stepper motor mounted extruder/hot end, like the Geeetech Mk8.
The six tabs on the cooler duct are just to improve adhesion to the bed while printing. They are snapped off after printing.
See my instructable for more details on construction and calibration http://www.instructables.com/id/Reprap-Load-Cell-Z-Probe/
Firmware files are at https://github.com/palmerr23/LoadCell_ZProbe