Directional 40mm fan mount for J Head MkIII nozzle

by maakit, published

Directional 40mm fan mount for J Head MkIII nozzle by maakit Oct 3, 2011
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I got my new J Head MkIII-B nozzle today and needed a directional fan mount to get some active cooling for the heat sink.
So I designed this fan-mount.
My first Sketchup design because it was too much trouble to design the transition from the fan to the two openings in openscad.


Get yourself some copper knees at your local hardware store (diameter 14mm).
Print and mount with some tiewraps or make a mounting support.

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by and by, i just printed this on a makerbot in abs at a scale of 2. it fits an 80mm case fan perfectly. took about 4 hours to print.

That is very cool looking! I also have this hot end and a different fan solution I have to post. I'm very pleased with the results over the last ~2lbs. While my solution may be simpler and less printing it doesn;t look nearly as cool.

Thanks, I also like the look of it.

It does the job, but maybe has too much performance loss. Perhaps the flat inside bottom can be adjusted to direct the airflow to the two tubes better.

I would also like to see your cooling solution for the MkIII-B.

I want to see your solution to this, I just got one of these hotend's also but haven't build the prusa to use it yet.

Anyone know what happens if you just have a desk fan blow at it?