3 cooling fans?

[exos]

I know the stock hot end bracket has three mounting points for cooling fans. Do people use all three? I believe there is a printable 'ring' type air funnel. I believe the idea is to distribute the airflow evening? This does seem it would have a low impact on hot end weight..

What does everyone use??

[Jimustanguitar]

I do 3 fans. I started with 1, noticed that my prints were still droopy on the far side from the fan, and decided that the only 'symmetrical' way to go was to use 3.

[img]http://i.imgur.com/wfsaAj4.jpg[/img]

[exos]

Nice! Is there a file for that on thingiverse?

[DeltaCon]

From Jim himself:
http://repables.com/r/705/

I have printed it in ABS already, and it looks great and pretty solid (stiff).
But I am waiting to be able to order the fans from SeeMeCNC, as they are very hard to come by locally (Netherlands).

[Jimustanguitar]

Or from Thingiverse, yup. http://www.thingiverse.com/thing:1167280


Public service announcement... Since using OpenDACT a while back, I've been printing about 1% small. That means that some of my more recent designs are oversized by that same 1% on other machines.

[geneb]

If OpenDACT changed either your diagonal rod length or steps/mm, it's introduced a scaling error.

g.

[Nylocke]

Is your 3 fan platform included in the list? I was going to print it for my printer soon.

[Jimustanguitar]

If OpenDACT changed either your diagonal rod length or steps/mm, it's introduced a scaling error.

Yep, sure did.