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

Effective 40mm fan guard

by toybuilder, published

Effective 40mm fan guard by toybuilder Jan 1, 2013


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I broke my 4th 40mm fan today. The problem with all other fan guards I've seen so far is that they do not intercept any tools headed for the fan blades.

This is inspired by Japanese fences that block the view, but not the wind.

The initial version is a proof-of-concept that was quickly put together, so you can still attack the fan blades from cerrtain angles -- but this should trap the most likely direction of tools headed for the fan.


Work in progress... Feedback welcome.

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Hi, This looks like exactly what I was looking for!
However, there are 2 or three tiny gaps in the mesh, causing S3D to fill up some of the areas in an attempt to repair it..
Could you perhaps fix it?

I destroyed my first fan last night. I'm relieved that I'm clearly not the only one. :D Thanks for the design!

would love this work on a replicator stepstruder

I don't have a R2. Can you tell me more?

yes i could let me grab my caliper.

you adjust the pegs so that they fit on a rep 2? And or reduce the height/thickness?
I printed one but didn’t notice it wasn’t going to fit the rep fan as the peg
holes are different

So, how would I get my fan into that?

This is a fan cover that attaches to the front.