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freemark

Anet A8 Fan Shroud for Power Supply

by freemark Jul 22, 2016
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How would you go about wiring the fan since there are not connecters left on the main board

It's wired directly to the terminals on the power supply, there's no need to connect it to the main board.

Thank you Freemark. I'm happy to report the 80mm version prints and works well. I own a 2017 model, for reference.

Action Pic: https://www.dropbox.com/s/dfxq6ik445xn7in/20170429_154229.jpg?dl=0

Super nice fit and function. Works awesome, well done and thanks for sharing.

you're welcome

which way is the fan supposed to blow, toward the psu or away? sorry if this is a dumb question

on the the side of the fan there is an arrow pointing the direction of air flow.

It's a valid question. The fan should blow away from the PSU.

IT'S FOR A 40mm fan. take measure properly...

Actually it is for a 50mm fan. Contrary to popular belief, the correct size measurement is the width of the whole fan, not the distance between screw holes. Nice remix though.

Thanks, but fan measuraments is taken (usually) is the distance between screw holes.

People often believe that, but it's not correct. Fan size vs hole distance is referenced here: https://en.wikipedia.org/wiki/Computer_fan#Physical_characteristics. Also, you can google for fan spec sheets.

now i understand why Jako124 remix is wrong...

Best way to print it is as shown in Thing Details?

Very cool...can you make a version where you can use 80mm (regular computer cooling fans...I have tons of them laying around)

Ok, thanks. I just added an 80mm version, so let me know how it works out. It's a straight forward print oriented as shown, you shouldn't need a brim or support

Would you consider making the 80mm version that could accommodate an 80X25mm fan. I have three of those fans and would like to use them for mine and my brothers printers.

In this design the fan is supposed to be mounted on the outside as shown in the photos, with the fan blowing away from the power supply, so it will accomodate your fans as is. The internal space behind the fan is a plenum to improve air flow and is not intended to house the fan. I have also designed some fan grilles if you're interested: http://www.thingiverse.com/thing:1879694

Fan Grilles, 30, 40, 50, 60, 70, 80, 92 & 120 mm

I printed one, for the most part it fits well. The fan frame clicked right in on the inside, just the slight misalignment of the mounting holes. Also, think that if the fan would mount on the inside of the frame and incorporating a fan grill for safety of someones fingers, but that would take a slightly more material to print. Also, I think that adding a lip that wraps around the right side and extend the top one all the way across or just to the right side would make more mounting points. Will snap a pic and draw what I mean if you want.

Ok, thanks for the feedback. I like the lip idea, it should allow it to mount a little more securely. The opening in the back is intentional, in order to provide more air flow over the top plate, which the power supply uses as a heat sink. The 80mm version is a requested design mod that I did not actually print. How far off are the mounting holes? Can you give me a center to center measurement? I also like the idea of having a grill, and think maybe I'll design one as a separate piece that can be used optionally.

I used those big screws that are intended specifically for the cooling cans. The holes were maybe about 1mil or so off, but the screws went right in and held in place pretty well, so I guess should not be too much of a consern. I only used two screws diagonally from each other to mount it and the other 2 screws were mounted usin the other diagonal position to hold the grill in place.

Hmmm, I measured 71mm center to center on a fan I had, but I thought the dimension was odd since on my 50 & 60mm fans the hole spacing measured exactly 10mm less than the outer dimensions. Maybe I'll redo a version with the holes elongated diagonally by a couple of mm. Thanks for the info.