I am using a 3d printed hot end and I wanted a Ender 3 styled cooling fan grill, but couldn't find one online. So I made a 40 mm fan grill. Then I made a 60 mm fan grill for my power supply fan (as the 40 mm grill isn't scalable to 60 mm). This is not for the stock Ender 3 metal Hot end fan setup.
I designed this fan grill to be printed flat on the bed, as the back side is completely flat. No supports! I noticed that some of the fan grills that I tried, have a gap where the fan blades spin, but have not come across a fan that needed this gap. Anyway, if you need to have a gap between the spinning fan blade and the grill, I have included a spacer. If the grill is causing interference with the fan, install the spacer.
This was designed to be printed with a 0.4 mm nozzle and 0.4 mm line width.
Note: I am not sure why (at least on my end) the files and image are not showing up on the thing page. They are on the Edit page and you can still download everything...