Tubes for storing TIG welding filler rods

Tubes for storing TIG welding filler wire. Made from 50 mm diameter sewer pipe.

Required for manufacturing: pipe, coupling, two end caps, and 3D-printed threaded parts.
Cut off the sealing ring groove wall from one end of the coupling.
Glue the threaded part of the cap (part #1) into the resulting cavity.
Glue the threaded part of the tube (part #2) onto the tapered end of the pipe.
Part #2 has a groove for an O-ring that can be installed if needed.