Update Oct 4 2018 : modified a bit the design of the body to make the thin parts at the bottom a bit stronger and added an optional support to attach a BLTouch sensor (offsets from nozzle +32mm on X and -2mm on Y). Part cooling fan is now attached by M3 screws and the fan shroud is attached by 2 screws to be better secured.
This is an my Bondtech BMG + E3D v6 Print Head aka The Tank used by my friend Tom Jackson (@FilamentFrenzy) on his Creality CR-10.
All pictures courtesy of Tom Jackson. Fran shroud is from the Prusa i3 Mk3 (slighly modified).
There are currently minimal instructions here on how to put the print head together. Do not venture in this mod if you are not comfortable tinkering with your printer.
You don't loose any print volume with this print head provided that you move your Y endstop 8 mm forward.
You basically need :
- A Bondtech BMG extruder (the design is compatible with both right handed and left handed ones)
- A NEMA 17 Pancake stepper motor (25mm deep)
- An E3D v6 hotend
- A Noctua NF-A4x20 FLX fan (40mm x 20mm) - The Noctua fan fits perfectly on the mount, you can use another 40x20 but you will need to grind a bit the top left edge of the fan to make room for the head of one of the screws that hold the rollers
- A 12V 50mm x 15mm blower fan
And also the following screws
- 2x M3x20 socket head screws (to attach the blower)
- 2x M3x8 flat head screws + 2 M3 washers + 1 M3x6 socket head screw (to attach the rear body to the X-carriage)
- 4x M3x25 screws (to attach the Noctua fan)
- 2xM3x20 socket head screws (to attach the front and rear body together)
- 2x M3x6 socket head screw to attach the fan shroud
The design is fully compatible with the Prusa new 45° fan shroud
A few quick notes
Simplest way to do the wiring is to use your stock hotend, cut the wires (hotend fan, part cooling fan, thermistor) and reconnect them to the new fans and thermistor. If you use 2pins male-female dupont connector to have something dismountable, the "Stepper spacer and cable holder" part has a space to hold them securely with zip ties. You can re-use the stock heating cartridge.
The cable of the hotend fan is routed in a trench on the rear of the read body. You need to install this fan before attaching the Body - rear part to the carriage
The cable of the part cooling fan is also routed in a cable way through the body
You need a PTFE tube between the E3D hotend and the Bondtech (Capricorn tubing recommended if you have some)