highly integrated BMG / E3D v6 extruder mount - multi-platform - CAD-files included

thingiverse

Here's my new mount for the Bondtech BMG / E3D v6. Again, it's a universal mount that requires some work to adapt to your printer, so you'll need to design more parts yourself. I've included the entire STEP-file for you to tinker with. This is NOT a print'n'plug'n'play-solution, please keep in mind that you'll need to do some extra work on your own. Water test video: https://www.youtube.com/watch?v=B-aXhI6nThI The fan is turned on around 10 seconds into the video. Watch closely as water bulges downwards when the oozed bit of filament meets it. The fan isn't the most powerful one, so you may need to replace it soon. Assembly animation: https://www.youtube.com/watch?v=24YQki4CsOo I've included a lot of screenshots from my CAD design, which should explain everything. The mount consists of two main parts (minus the bracket), and they do all the work: - Hold the extruder assembly in place and secure it against rotation around Z. - Secure the hotend against movement along X and Y axes. - Hold the cooling fan and part cooling fan. - Provide air cooling channels to cool the part, which are internally located. I've also tried to make the mount easy to work with by providing great visibility and accessibility to the nozzle. Additionally, I've kept a relatively big distance between the hotend and the mount to ensure good insulation. Yes, the silicone sock is mounted backwards on purpose, to further insulate the mount from the hotend. Part cooling seems to be working effectively, so take a look at the video for yourself. To seal the edges of the radial fan, I recommend using electrical tape, as air can escape otherwise. A substantial amount of design time was spent matching the visual design aspects of the mount to the BMG extruder. This is subjective, of course. The two parts print easily without supports, thanks to my careful design. I've made sure that all internal features are overhangs wherever possible, and bridges are as small as they can be. Printing in PETG or ABS or high-temperature PLA should work fine. I printed this with a 0.12mm layer height and a 0.3mm nozzle, which is somewhat optimized for these settings. What you'll need to get started: - The aluminium bracket - or some other mounting solution - A 40mm cooling fan - A 50mm radial fan - 4 spacers Ø8 / Ø4 / 5mm high (to give space for cables to feed through between the mount and the bracket) - 4 socket head cap screws M3x12 (to mount the first part onto the bracket) - 1 countersunk screw M3x6 - 2 socket head cap screws M2x12 - 4 socket head cap screws M3x10 (for the 40mm fan) - 1 socket head cap screw M4x20 (for the radial fan) Please make sure that the mating surfaces of your prints are straight and fit together nicely, otherwise air will escape. You can use electrical tape to close any gaps if needed. Also, ensure that your printer is capable of doing tight tolerances as well as clean and sharp edges, or you'll run into problems mounting the extruder assembly. Please feel free to modify this design to your liking - I'd love to hear from you! P.S. Although it might sound a bit harsh, please don't ask me to adapt this design to your specific needs for you. I really don't have the time for that. If you need help adapting it, then feel free to contact me.