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80mm Fan Mount for Printrbot Jr.

by phraust, published

80mm Fan Mount for Printrbot Jr. by phraust Feb 23, 2013
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I have a bunch of spare 80mm fans lying around, and wanted a quick solution for mounting one on my Printrbot Jr. to experiment with.

I goofed around with some of the higher powered fans, and luckily didn't break anything. I guess the max draw for the Printrboard is something like 500mA (?) so I put the lowest power fan I could find on it (0.20a). We'll see how this goes...

Looking at the Printrbot.com site, it looks like they've changed the extruder design included with the JR's. This is designed for the lasercut/wood one that came with mine.


I don't know what the Printrboard is designed to push voltage-wise, as I see a bunch of small fans and fan mounts everywhere for it. I also think that putting a bunch of weight on the end of the Y-ARM is probably a bad idea as well.

  1. Print it out. It'll pretty much stay together without any screws or glue, but I superglued the 80mm clip to the small arm.

  2. Originally I had planned on making the arm adjustable, so the screw and nut are in there, but not really needed, you could glue it. (I plan on finishing that up once I get some more material).

  3. Clip in your fan, plug it into the printer. I had to made an extension from the fan on the board out through the back, then plugged the fan into that.

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Updated. Hope that works better now!

So I know it's a 3 year old upgrade for a printer that's no longer in production, but, um, any chance of either a correction of that floating bracket or the source files so someone else who's still using one of these ancient things that hasn't yet been upgraded (like, say, me) can do it?

your design is not very printable as the bracket for the fan in the STL is floating.