Aurora A3 E3D V6 + MK8 Bowden mounts

thingiverse

This Is a Work in Progress That May Never Get Completed! I print all my prototypes in Gray, so you can see, this never got past the prototype stage. I designed and printed this and then had so many problems with cheap Chinese E3D v6 knockoffs jamming that I gave up. Now my A3 is dialed in nicely with the stock MK8 that I don't feel the need for a E3Dv6/Bowden extruder combo anymore. I did print this, as the photos show. I did fit this to my printer. It does fit. And the E3D mount aligns correctly to the stock X-Axis carriage (with one extra screw). Everything SHOULD work, but I never got a chance to test it. As the photos show, this is setup for dual cooling fans. The fan size is the same as the stock nozzle cooling fan that comes with the A3. I print with PLA almost exclusively and believe the quicker you can cool it down after extruding, the better: less droops/oozing/warping. The MK8 mount for the Bowden configuration is a bit odd. I have my spool mounted to the back/right side of the A3 and so the MK8 mount is aligned to feed the filament from there (see photo). You will also need to rotate the extruder on the motor 90 degrees to fit properly in the mount. There is no room for the extruder cooling fan - I don't believe you need one since it will be far away from the hot-end. All told this will reduce the weight on your X-Axis by about 60% - theoretically allowing faster printing/traveling/jerking/acceleration without causing those nasty ripples in the prints. But, like I said, I never got around to testing it. ALSO! This will raise the nozzle up from the bed about 4mm. This is intentional. I did this because the bed, by default, is mashed too close to the Y-Axis carriage plate thus not giving any room to add PrintBite or any other special print adhesion material. I've included the original Sketchup files in case anyone wants to modify it to make it work for their installation. If you need a different file format, I might be able to help. If you have any questions, let me know. If you need me to modify any of the objects, sorry, I got too much on my plate right now for custom work. Printer: JG Aurora A3 Prusa I3 Rafts: No Supports: No Resolution: .2mm Infill: 20% Notes: Still want to print this? OK! I printed this in PLA, but since I never have thoroughly tested it, I'm not sure how it will hold up against the heat generated from the E3Dv6. You may want to consider PETG or (gasp) ABS. The fan duct walls are only .5mm thick to keep it as light as possible - so they are just single walls basically. Everything else can be printed however you wish for strength and durability. Print all objects as oriented and your should not need any supports - just a little drooping clean up here and there. Post-Printing Additional Hardware To mount the E3Dv6 mount to the X-Axis carriage, you'll need one extra screw (4) than the stock mount (3). Mine came with an extra one... All other hardware screws are standard M3 nuts and bolts and there are sockets in the E3Dv6 mount to hold all the nuts in place. It's designed for two cooling fans, so you'll need to get another one and splice the wires together. Note in the photo how the E3Dv6 hotend is placed in the mounting: its fan is in the front and the heater coil is in front of the nozzle. You'll want to mount it that way if you're going to use the dual fan duct.