Summary

I made this for usages with my cheap china laser cutter.

Instructions

You'll need this print and one Pneumatic 12mm-1/4" BSPT male fitting

I printed with to shells just incase. Nozzle down

Finish printing and while still hot heat up a fitting of size 12mm-1/4" BSPT
Once the fitting is hot it should screw right on. The first i printed was a little to tight so i lite it up quickly and attached a preheated fitting.
Seal it and attach as you see fit, FIY. Some casket sealing and some strips might give you a perfect fit.