It's maximising contact surface area
Which is great for mechanical strength but I'm not sure it's best for the electrical connection - it's unlikely to clamp with enough force to give a gastight joint. The modern allegedly maintenance-free connectors like Wago have a very thin knife-like contact.
(
tarka_dall Like normal dall, only a bit more spicy, Tue 9 Sep 2025, 6:35,
Reply)
these can be printed (don't have the metallic springs like the inline wago ones), and seem strong in the vid
they are quite chunky, a drawback if you're connecting multiple wires in a confined space, but I can see their utility and cost effectiveness for some uses. But they're not certified, so you're liable if your house burns down because of them.
its an interesting point about the squeezing. it's a trade-off between grip strength, connection, and starting to get resistance which can be dangerous. He has made it so you can grade the gap for wire sizes, but does the clamshell pressure start to reduce the cross-section as it's mostly going to applied on one axis?
(
cumquat may will not be commenting further on the allegations, Tue 9 Sep 2025, 7:58,
Reply)