About this 3D model

As I mention in the Infill 3D Bowden geared extruder, I like direct drives I will go as far and say that aesthetically direct drives are ahead; less parts, smaller, less complicated but at the price of reliability. Once more I wanted a compact extruder that has the reliability of a Wade's extruder here is what I came up with. I made this extruder to work with the SunBurn hotend and the Infill 3D i3R however it will work with any hotend that has a 16mm groove mount, I wanted the extruder to be small and give me back some Z axis printing volume; from the bottom of the X-Carriage to the tip of the SunBurn hotend (this measurement will be different with other hotends) there is only 10mm+/- I could have gone lower but I wanted to play it safe. Also it uses the same small 2/3 herringbone gears as my Bowden extruder making it very compact, check the pictures one of them has a quarter dollar coin for refrerence, I have been using it for the past few months and is been performing well. Latest version and X-Carriage is at http://infill3d.com/20-downloads along with other parts that might interest Prusa i3 users. If you find any errors or have any ideas for improvement let me know.