Jump Ring Mandrel For Drill

Each full loop will create one jump ring so continue until you ve created enough loops for the number of jump rings you need.

Jump ring mandrel for drill.

Drill two pilot holes into your base about 1 inch in from either side. When i worked in a factory in pforzheim we would use a specialized jump ring winding tool which was essentially a kind of fancy hand drill with gearing and a jacobs chuck. Drill a hole in your piece of wood that is exactly the size of your mandrel 1 4 in the picture. You want it affixed to something as you need two hands to operate the mandrel once it is in use.

Cut the rod if using 1 4 inch round rod your end jump rings will be equivalent in size to the 6mm jump rings found in craft stores. Stretch the mandrel either by clamping one end in a vise and hold the other end in a pair of draw tongs and give a quick and firm jerk or stretch it in the draw bench and voila the coil of oval jump rings comes off like butter. When i worked in a factory in pforzheim we would use a specialized jump ring winding tool which was essentially a kind of fancy hand drill with gearing and a jacobs chuck. If using a 3 8 inch round rod your jump rings will be close to 9mm jump rings.

The resulting coils are then cut using a jeweler s saw. Pound your little nail into the wood just to one side of the hole. You can make a jump ring coil by using an old fashioned hand drill to hold the mandrel. Clamp the drill handle into a vice and chuck the mandrel into its jaws.

This creates a superior jump ring that closes smoothly and neatly. Your only real material needed is your round rod to serve as your mandrel. Pepetools jump ring maker mandrels that are included with the jrm2 jump ring making kit now sold separately. We used copper and brass mandrels in the cross section of the required jump ring ovals rounds and so on.

These can be used to attach charms to bracelets build chains for jewelry or simply to attach clasps. We used copper and brass mandrels in the cross section of the required jump ring ovals rounds and so on. Carefully feed the wire onto the mandrel while slowly and steadily cranking the drill. Wrap your wire around the mandrel keeping each loop close to the previous one.

Take a mandrel in the correct diameter for the size of jump ring you want to create and your chosen wire. These mandrels are zinc plated to prevent corrosion and last for years. Then secure your new jump ring mandrel to your work table or wherever else you plan for it to live. To get the rings off the mandrel anneal the rings on the mandrel and here comes the real trick.

Kink the end of the wire to a right angle and slip it into the jaws of the chuck.