The never-ending knot dates way back to the late Roman Empire. Probably even sooner. It can be found in several cultures within their art and architecture. I’m most familiar with it within the Irish, Scottish and Welsh culture. This pendant can be difficult to make but a couple well placed notches makes it possible.
Step 1: AutoCAD Jewelry Design
To begin I copied an image from an internet search and pasted it in AutoCAD. I placed 3 arcs right over the image and moved them off. With the help of the trim tool I cleaned it up to just the simple symbol. I used the rotate tool to move each arc back into a circular form. Finally, I marked the circle where the arcs break and overlap.
Step 2: Work the wire into a circle
The trefoil is made form 14 gauge zinc coated steel wire. You can find it at any hardware store. With a 13/16 Craftsman socket, I formed a coil using a pair of pliers. This size socket made the coil the exact size of the template. I find it works best to wind the wire against the curve. I cut a section of coil so it overlaps according to the lengths of 3 arcs. I then used a triangle file to mark where the bends are going.
Step 3: File the notches
When it comes time to fold in the pendant, it won't be in a straight line. To get the right offset you have to file in the notches at an angle. I didn’t measure, but my guess between 45 and 90 degrees. I used a square file a notch about 3/4th of way into the wire.