Showing posts with label #gemstones. Show all posts
Showing posts with label #gemstones. Show all posts

Thursday, March 15, 2018

My Filigree Bracelet with Gia Gogishvilli




I can't tell you how great it was to finally take a filigree class taught by Gia Gogishvilli, the master of filigree (and Repousee/Chasing and all metalwork)!  We had one week to learn how to twist the metal, flatten it, anneal, make solder, file the solder, make the filigree pieces, make the frames for the filigree, learn the proper gauges, make and solder hinges, etc.  It was a lot to learn.  Most of us needed a bit more time once the week was finished, so Gia set up a couple of extra time periods to meet again, which was extremely helpful to all of us.

So as complete beginners, we began with building our sterling silver frames.  One for the left, one for the right and one for the middle.  The size of these frames depend on the size of our wrists or whose wrist we we're making this cuff bracelet for.  We made cardboard templates to be sure of the sizing.

The basic frame
Using a template
Then we added the design inside the frame.  This wire must be fully annealed before shaping.

Adding the inner wires
Once the frames were built and all inner pieces soldered in place, we could then begin to make our filigree wire.  This is a process of taking two or three fine silver wires and twisting them to the point of breaking...annealing and then twisting even more.  It is difficult as a beginner to know when the wire is twisted enough because it's far tighter than one can imagine.  Once the twisting is complete, we run the wire through the rolling mill to flatten.  We then anneal one more time before beginning to make filigree wires.



There are different types of filigree wires, called ornaments.  Some have a single loop, some have a double loop and others have a tight double loop.  I've seen some filigree made with just loops and no tail.  I decided to do a tight double loop for this project.  The wires are supposed to all look exactly the same, but I need more practice with this.

Adding Filigree (ornaments)


As we insert the ornaments into the frame, each one is supposed to fit snugly.  The goal is to fill an entire frame with ornaments before soldering, but some of us had trouble with that in how they would keep popping out because we were not placing them properly.  It takes practice!  Once a frame is complete, we turn it over and solder with filigree solder, which is more like a powder than regular silver solder.  You can make your own solder by combining silver, copper, brass, cadmium and zinc with flux and borax, which turns it into a hard piece of metal.  You must then file this piece of metal to make your solder for filigree.



With persistence, the frames eventually fill up!



Now it's time to make the flower that will be placed in the middle over the large opening and also make the small half circles that will form the edging of the bracelet.

Adding the edging
Soldering the flower



Now comes the hinges.  These were simple 3 way hinges made out of tubing.


Trying to decide which stone to use.

What's next?  Finishing the hinges, forming the entire bracelet, cleaning and polishing and setting the stone.  Phew!

The Finished Bracelet

The back hinge

What an amazing experience!  Thank you Gia!  Until next time...

(Edited 3/15/18)

Monday, August 01, 2016

Textures in Metal Clay


I recently took a class in Metal Clay with Pam East.  The only experience I had in this medium was a week-long class at Wildacres in North Carolina with Janet Harriman in 2013.  Metal clay is a clay-like medium that consists of very small particles of metal (silver, gold, bronze or copper) that is mixed with a binder and water.  It can be shaped just like clay, molded by hand, carved, stamped and put into molds.  After it dries, it is fired and the binder burns away leaving the pure sintered metal.  

We started out with some simple pieces using bronze and copper, and later moved to fine silver.  I discovered that Metal Clay is the BEST for textures. You can get deep, dramatic patterns using something called Photo Polymer Plates.  Here is the how-to video:  https://www.youtube.com/watch?v=FI_o4VqptI4.  





I also discovered it's a friendly medium for 24k gold keum boo (a technique for applying 24K gold to silver). Because fired silver metal clay is more porous than regular silver, the gold practically melts onto the silver when heating on a small kiln.  Here's a how-to video on keum boo:  https://www.youtube.com/watch?v=QWf8lOiXM6U.



Another benefit is the ability to insert gemstones into the metal prior to firing.  Only specific stones can take the high temperatures required for metal clay, so it's important to make sure the gemstones you are using are safe.  Cool Tools has an excellent gemstone firing guide online.


Metal clay is a whole new medium for me and an exciting new tool in my toolbox of metalworking skills. There are some experienced metal clay artists doing amazing things...Gordon K. Uyehara, Celie Fago, and Ivy Soloman to name just a few.  Holly Gage won the 2015 Saul Bell Award in Metal Clay with this necklace:


The 2016 Saul Bell award went to Rodica Frunze with this piece: