I'm making a wedding goblet for some friends and would like to do the interlocked rings. How do you break the 1 ring without destroying them? They are about 1/4" diameter and 1 1/4" wide maple. I made 6 rings on the stem so I could try to break them cleanly and have extras, but with little luck. Are they too big in cross section?
Are you breaking holding in your fingers? Is the break just not clean, multiple breaks, what?
I'd try making a two part "clamp" to hold each side rigidly and limit the zone for flexing to a small spot. Just brain storming, I haven't tried this. I assume the goblet and rings are in end grain (spindle) orientation.
Hold the long grain side of the ring in your fingers and then snap it in two. Should break easily. If not use soft jaws on pliers or clamps to snap it. Then don't do anything to the break line. I like to use yellow glue. Put the joint together and hold it for 30 seconds or longer. Then carefully wipe the joint with a wet towel to remove excess glue.
Yes the piece is in "spindle " orientation and I was trying to break then with my hands. A clamp/holding device would have helped-thanks for the idea. I was getting clean breaks and also multiple pieces. I didn't really have a ton of time to get this finished as I had to deliver it last night (Monday). I just left 2 rings separately on the stem. Everyone seemed to like it anyway. I'll have to try again some time. I like the interlocked effect.
So it sounds as if I should break them completely in half and then re-glue ? I was hoping to just break 1 side at the short grain and flex it enough to get it around the other ring. Probably not the best plan.
I have found that if you break them carefully, with the grain on one side only, and then wrap the opposite side in a small piece of wet paper towel and heat it in a microwave for (in mine) 20 seconds, the wet side becomes flexible enough to open the break and work it around the other ring. Then line the broken spot back up and glue together. Sometimes you will need to bring the ends together while it is still hot and put on a small clamp until it cools to make the glue up work better.
I use a cutter that embodies a utility knife blade as a wedge along a portion of the grain that will not stand out. I wedge from the inside of the ring so the small mark the cutter leaves is not noticeable, and then lightly sand it when it is all glued back together. If it is done carefully the ring will break when the cuter has penetrated roughly 1/16". I've put a link to the one I use.
On a slightly different note, I always turn three rings per glass, just in case something goes wrong. I seldom need the third, but occasionally it has saved a glass.
Don, I don't brake it, I use a 44 teeth to the inch saw from my airplane model days, it makes a very clean cut and after interlocking it I glue it with tightbond glue and clean with water any excess glue.