Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

J-head cooling shield for 30mm fan

by Ohmarinus, published

J-head cooling shield for 30mm fan by Ohmarinus Aug 4, 2013
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To be used with Thinkyheads' Prusa i3 Wades Adapter:

I have designed this fan-shield specifically for use with the J-head and a 30mm fan.

Currently I am still improving small parts of the object so stay tuned!
In the end, this cooling shield should also be compatable with other extruder adapters that use a J-head, because the spacing of the mounting-holes is universal.

Printed it myself and for me it worked flawlessly after the first try!
BUT, there are still a few design considerations I want to apply to the object, and I have to fix three small errors, but they are so small that they won't really interfere with the functioning of the thing.

Still a work in progress, I just got Rhino working a few hours ago and this is my first design, I have no experience in Rhino so it took me some time to understand basics just by doing. All tips are welcome! :)

Last, this is a Work in Progress, I am still tweaking my design a bit and have to make different approaches to how the air-flow will work the best and make everything actually fit well together.

  • Marinus

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Is there 40mm version yet?

can we get files so we can edit it ? i would like a mod for a 40mm fan, and maybe an LED Ring so if you can upload the files then i would be happy :) i love the design btw. and its okay if you don't want to upload the files.

This is great!
I previously had problems with temperature oscillation of my hot end. I tried retuning Marlin to no avail.
Fitted one of these but initially it made temp control worse when it blew cold air over the jhead. However, I reversed the fan so it was sucking and now my hot end temp is very stable.
Should state it fits the latest and shorter MK V jhead.

Hey thanks for your reply. I have changed the design a bit to allow for better airflow. Also, I now have removed the cable-guide because it turned out to be too small. I shall upload the new file asap.

Cable guide is OK as it is if it is used for just the thermistor and fan wires. Leave it in.

I didn't notice the small hole in the cable guide for routing the wires at first.

Hi Dave, I'm happy to inform you that I am working on a solution for an even better guide. I'm sorry I couldn't make my promise true until now, I had been having a hard time at the art academy but now I passed all the tests with good grades and am ready to work on the machine during christmas holidays :)

Hi, can you make it for a 40mm fan??

Hi One, I am currently improving the one for 30mm fan, but when it's finished maybe I can design a small spacer that you can connect in-between so you can also add a 40mm or 20mm fan.

no instructions ?

Actually: No idea.

It used to be in there, but it disappeared. Damn.

I have been working on it lately, will update it this evening :)

Turns out when you update the STL, the download counter goes back to ZERO.