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E3d V6 Valcano center piece for dual duct fans

by davidwyl Jul 8, 2016
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Left fan duct isn't sitting flat of the build plate when sliced in cura i wasn't paying attention took a little bit to figure out what was happening why i was getting a crazy shaped brim. Moving the model -0.02 in the Z axis fixed this, I will inspect the others later.
I love the design only wish the center was a 40mm fan so i can run at a lower RPM and have it be more silent.

I used for my Anet A8, prusa i3 clone, with a bowden set up. I made some modification to the X carriage to make this fit.

For the volcano your edit works very well.
When i tried to use your design with the normal e3d the schells were up against the center piece bolt holder and could not get high enough.

I used these when I printed them with PLA.
But people should print it with ABS. Because the cable of the hotend is warm enough to soften up the ducts and make them droop onto your prints and scrapped quite some prints of mine.

Eventhough what I will say now is not your fault but the first designer and I'll comment it there as well:
-It's annoying to screw in the ducts onto the center piece. A nuttrap design would have been better.
Instead of a tie-rip hole at the back, a more snug hole for the e3d heatsink would have been better. Could be that my heatsink is off size.
-Somehow the pieces of the duct where the bolts go into, the pieces that touch the center piece, were too wide and clashed and there was too little room for a good bolt hole. (could have been my printer but I did quite some flow tests before hand, so i doubt that was the case.)
-If too much pressure is applied the bolt holders break way too easily. There is enough room to make these wider.
-Eventhough there is enough room for a newer e3d aluminum hotend blok with an cylindrical thermister to spin around, there is too little room for the cables, which also heat up. Thus the heat of the hotend simply heat up the ducts and make the soft and potentially droop.
-Due to me screwing around with a broken bolt holder, it started to resonate terribly.

In conclusion I cannot recommend this for Anet A8 or prusa i3 clone users. But apparently a lot of people like it so it's good if it's printed in ABS or better filaments with a better calibrated printer, but the other issues still stand.

Is this intended to function on volcano and standard v6? It looks like the part fan mounts are able to move up/down for fine tuning

This should work on standard v6 too I guess (I never tried it). Plenty of space to adjust it up down.

The Fan-Duck-Right_-repaired isn't repaired.

Works great, but i had to take the middle without support, 1st print with inbuild support failed. 2nd with Cura Support settings came out great.

I second that. Great design!

You should make one with 3 x 40mm fans. The 30mm fan is so noisy! :)