Update 13.06.2017 corrected the title its e3d v5 not mk5 - sheesh

My Version of a modular full replacement for the problematic x-carriage mount assembly my CTC printer came with. It mounts a cheap E3D clone hotend to a common metal mk8 sized extruder.

The base design comes with a place to attach a 8mm distance induction sensor but no fan ducting since I use large Fans mounted to the frame of my printer to good effect, but I might do a version of the "Front" with an airflow redirect in the future.

The mount is split into 3 parts for easier printing if you rotate them correctly. The parts are joined by M3 screws of various lengths and an optional very long M3 screw or 3mm rod for extra horizontal stiffness.

The attachment holes to the x-carriage are spaced 30mm for 2 M3 screws but I made a more standard 23mm spaced version of the base with 4 M4 holes you can alternatively print. If your hotend nozzle ends up being too low then there is another alternative with an additional 2mm of headroom. The stepper motor meant to be used with this should be 39mm deep and will fit Quite snugly. The fan should be a 40x40x10 fan.

This is the function used to generate the space for the E3D clone hotend radiator in case you want to check if yours fit:

module hotend(){    e3d=[[9.4,50,0],    [16.9,4,23.1],    [12.9,5.7,18.6],    [16.9,3.8,14.2],    [16.9,2,9.9],[25.5,32,-9.1]];    for(c=e3d){       translate([0,0,c[2]])cylinder(d=c[0],h=c[1],center=true,$fn=76);    }}

I printed and tested all the parts on my 3d printer. In fact my printer prints using this right now. :)

Vitamins used
https://www.amazon.de/DAOKAI®-3D-Drucker-RepRap-Extruder-Schrittmotor/dp/B01JD03X8I
https://www.amazon.de/WINOMO-Hotend-0-4mm-Düse-Drucker/dp/B01D4FBJ8E
https://www.amazon.de/Extruder-Schraube-Inliner-Thermal-barrier/dp/B019H4XC0Y
https://www.amazon.de/sourcingmap-LJ18A3-8-Z-6-36V300mA-röhrenförmig-Näherungssensor/dp/B009ITGMHE