Nozzle for the Luckea cordless air duster

The Luckea C4915 is a cheap cordless air duster on sale on Amazon, Aliexpress, etc.

It's a great replacement for compressed air duster sprays, in order to clean keyboards,

However, the tip of the nozzle it ships with is still a bit large to efficiently clean fans from 3D printers or graphic cards.

This is why I designed that nozzle. The smaller tip greatly increase the air pressure, and that thing now does a fantastic job at cleaning my printer's fans.

Prusa Slicer may warn you about stability issues, but it prints perfectly fine without supports, with a 0.20mm layer height.

I used Prusament jet black PETG, but PLA should work equally well.