I came across a welded in hot swap prototype today while cleaning. I like how this one came out and how it inspired how I made my next keyboards.
In this image you can see some of the hot swap spots with the traces for the welded 3d print to flow on the back side of a full keyboard.
A full portajohn progress on jan 10 2026
Here is a shot where you can really see the welded in sockets in my latest build.
