40 to 60mm fan adapter
thingiverse
40 to 60mm fan mount, compatible with [Mini-Me v4 hotend for ender 3](https://www.thingiverse.com/thing:4375296) but could be used for anything. I'm also adding freeCAD project in case anyone needs to adjust anything, just be carefull as thickness modifier is really picky and can suddenly stop working, solution would be to use additive pipe but for whatever reason that's not working for me
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