Shown here the various assortment of burs, ranging from Bud, Round, 156C (a.k.a. undercutting) burs. I use only the Onglette #2, Right-Sided re-shaped & contoured graver. NO FLAT GRAVER IS REQUIRED IN THIS "Demo". (If you feel that you can use it, good for you!)
I will explain where and how the Flat Graver 'could' be used.
The Difficulty Level is approximately 8.5 out of 10!
Training Level: Three years of 'continual' graver & setting experience!
Here are the assortment of burs that are required in completing this interesting project.
The original ring is on my bench-peg and to the left of it is the demo-piece!
Once I've seen the arrangement up close, I'll mark the outside with a 'felt-pen' for me to remember where each stone 'might' be set.
The holes are now drilled and measured the spacing for the top section of this ring.
I'm so very careful where each of these stones will now be placed. This drilling is so terribly important, why so? From this stage, I must follow through with the cutting out of the holes.
Here is the exact twist-drill I was using. It is measured at 1.00 millimetre is width, anything thinner will quickly overheat & bind in the silver and break off. Not an easy thing to fix when it's stuck in the metal. YUK!
Here are the selected stones for me to work on and use just for the top section!
I'm now using a bud-shaped bur of #006 to cut at a 12:00 - 6:00 position. Then a #007 bud-bur to cut in between the two holes. All holes MUST BE DUG DEEP!!!
Make sure that the holes are "contoured' to accept the Pavillion of any stone to be set!
Let your Onglette graver cut, as well as 'deep'. You must separate the bead/claws from the outside wall of metal.
I'll now use a "156C" undercutting bur to make a seat for each stone, as shown!
Don't be too concerned how the graver cuts look. The 'lines' need to keep the claws separate from the 'border' metal, that's all that really matters!
Don't forget to DIG DEEP with your #007 Bud-shaped bur. This is to make the claws easy to push over with your 'Bead-Burnisher'!
Here is the up-close positioning of your 156C bur and how its' making a seat for the Girdle of the stone.
Do not drill straight down, but let your 156C bur come in on an angle to cut only 2 claws at once..not four!
Hold you Bead-Burnisher at an angle away from the Facets, making sure no burnisher-metal rod touches any part of the stone.
This is not the way the burnisher should be held!!! I wouldn't and neither should YOU, as there is a very good chance of stone breakage!
As you can see, the new-claws are holding each stone in place. Much careful and precise cleaning with your graver should now start..!
As the stones are now going to be placed into the metal spaces, much of the large pieces of metal will be gently removed and shaped.
I prefer to do all of the Bright-Cutting now and the last thing that will be done is to set and Bead-Burnish these new claw tips!
If you are confident in using your Flat Graver #40, this is the time to do so, prior to any stone setting!