This is a completely solderless way of wiring a keyboard matrix together. Using these 3d printed pieces, through hole diodes, and solid core wire, you can put together a keyswitch matrix that conforms to the shape of any build space, with the added benefit of being able to remove and replace all of the switches.
Version 4 improvements:
Easier to print
Improved robustness of row wire connection
Faster to assemble / put in diode
Better method of connecting pin and diode
How long does it take to assemble each socket on average?
I got this down to like 1:30 - 2 minutes per socket, so yeah its still a time sink.