I can see why they use square. When the wires are wrapped, they aren't able to turn around and move because the flat faces are butted tightly against one another. I've wrapped round wire in a similar configuration to that in the project you want to do. The only way I could stop them from moving around was to solder them. I wouldn't definatively state that it can't be done with round but you may have to experiment to find a way to stabilise the wrapped wires.
- posted
20 years ago