I don't have much in the way of machinery so I've made do with what I have. The wire is 316 stainless and is quite "springy". An arbor press is on my wish list (along with a mill, guillotine, panbrake..........)
I can't quite visualise what you mean. I've tried a few different arrangements, the one I have come up with seems to be the best in terms of being simple to manufacture with the tools I have to hand.