Printrbot Simple Pro Shroud for 40mm Fan

thingiverse

I grew tired of hearing the loud 30mm hotend fan, so I made this simple shroud that lets you mount a 40mm fan instead, which are much quieter. You can mount the fan directly without the cover, but the cover helps make it a little prettier and keeps fingers out. This does stick out a bit further than the original shroud, but there is still adequate tweezer access and it doesn't stick out past the base, so it shouldn't interfere with any sort of enclosure. M3 screws are meant to be screwed in from the inside and you should have some wiggle room with the length. Mine are 20mm in (thread) length, but you should be able to get away with ~16 since they don't need to screw all the way into the cover.