TIG Welder - Argon Quick-Disconnect

Thread adaptor for an Argon quick-disconnect

Background

Originally my TIG welder didn't have a quick-disconnect for the Argon gas fitting. It required the connection/disconnection of a brass UNF 5/8x18 fitting to switch between TIG torches.

Solution

I purchased a quick disconnect from eBay (type TBC) and designed this thread adaptor in OpenSCAD. My welder is equipped with a UNF 5/8x18 thread, and the quick-disconnect is a M12x1 thread. You can edit the variables in the SCAD file to suit your needs.

Printing

Layer Height = 0.15mm
Infill = 100%

Fitting

I recommend Teflon tape on both threads to ensure no leaks. Given that this is on the torch-side, there is virtually no pressure (Argon gas) on this adaptor. I don't recommend using this adaptor for high-pressure fittings. You can use soapy water to double-check for leaks.