Air assist for fixed focus laser with 5015 fan

thingiverse

I don't think 5015 fans have enough airflow. I had panic attacks watching smoke ignite right under my laser's lens, so I drew this design as there wasn't anything suitable for short focal length lasers on Thingiverse. The goal is to blow the smoke away and protect the lens, but it would be great to hear that someone found a way to improve upon this design. This should fit all short focal length lasers with 40mm bodies and 18mm diameters of brass things around the lenses. Mine looks like this: https://www.aliexpress.com/item/33033806861.html I used a hot glue gun to attach the fan and double-sided sticky tape to hold it in place on the laser. It's holding up well so far, but maybe I'll add more sophisticated mounting later. Maybe I'll redo this design with better air dynamics someday. Please note that using this render makes your focus finding column useless, you'll need a new one.