high intake fan blades

thingiverse

I was working on a solder fume extractor and decided to repurpose this file as a fan blade. I initially thought that four blades wouldn't be enough, so I copied and pasted the design, rotated it 45 degrees, and hoped for the best. Unfortunately, the result didn't run true due to the fan's oblong shape, so I took the two longer blades, trimmed them off, and created this new design. Update: there are now files available with eight and sixteen blade configurations.