One could ask, "Why didn't you just buy some actual mandrels made specifically for this purpose?" The answer to that is also simple.. because I'm cheap. :D. As it turns out we were heading to the city to check out the Home Show, so we stopped in at the Lee Valley shop as well. Once I saw the set of punches I knew he was right, they were exactly what I needed. About 4 inches long, I can make fairly long coils, but they're still small enough not to take up too much space. They are graduated in increments of 1/64 inch, and best of all, the whole set was only about $12 plus tax. This is less expensive than buying the same number and size range of jewellery specific mandrels, plus they have better portability.Now for soft, small wire I can simply hold the punch in one hand and wrap the wire round it with the other, but the hand holding the mandrel cramps pretty easily that way, so my Dad went poking around the basement and came up with this tap handle (don't ask me what it's really for because I can't remember what a tap is, only that it has some connection to a dye, whatever that is).
So then we put the mandrel in the tap handle along with the end of the wire and close the handle down to hold the wire and mandrel in place. Next we simply coil the wire round the mandrel, taking care to keep the wraps close together to get nice neat coils, as this affects the uniformity of the rings. As an aside, I have recently been working with bronze from The Ring Lord.I have found this wire to be quite springy, and difficult for my weak fingers to keep a grip on, so after losing my grip and getting whipped with the wire a couple of times I found that putting the free end of the wire in a vice and turning the mandrel, instead of holding the mandrel still and moving the wire, is a safer way of making the coils. It's also a good idea once you finish coiling the wire to ease the mandrel back off a little before letting go, so the tension doesn't release all at once. Note that the spring-back in this sort of wire will result in coils with a somewhat larger diameter than the mandrel it's made on, so it will be necessary to use a mandrel somewhat smaller than the desired size of the rings.
Once we have our coil we need to cut it into rings. This can be done two ways. I snip cut a lot of my rings because it's easy to carry my cutters around if I'm working away from home (say, making chains while manning a table at the flea market). For a less visible, more professional looking cut, however, you'll want to saw cut them, typically with a jeweller's saw like the one shown (I wouldn't try this on steel though, it'll just ruin the blades, I'm not sure about bronze). I haven't a price on this just off-hand, as I use my father's when I need it. I believe he purchased his at Mountain Gems
To cut the rings we put the coil on a little wooden dowel to help keep it steady, with a notch in the end of the dowel to serve as a guide for the saw blade. Some folks who make a lot of rings use motorized cutting tools, but that requires a more complex set-up and extra safety precautions. Plus, hand cutting can be done easily at the kitchen table, so you can keep working even when you have visitors :D.




