2020-05-01_Lapidary_Journal_Jewelry_Artist

(Joyce) #1
SKILLS
Using a power drill
Basic soldering
Bending

TIME IT TOOK
15 minutes per cuff

MATERIALS


  • 24" 20-gauge solid round copper
    wire

  • 24" 12-gauge copper wire

  • 24" 20-gauge round sterling silver
    wire, dead soft

  • 12" 12-gauge sterling silver wire

  • 12 ⅜ " OD (outside diameter) refrig-
    eration copper tubing

  • 12" 8-gauge half-round sterling
    silver wire

  • 12" 1.5mm round sterling silver bead
    wire, dead soft

  • Hard solder

  • Optional: 12" 2.3mm round sterling
    silver bead wire


TOOLS
Safety: Closed-toed shoes, eye
protection, respirator and ventilation
system or fan
Hand Tools: Colored tape, fi ne point
Sharpie, bench block and hammer, heavy
duty wire cutters, cloth tape measure,
bench pin, jeweler’s saw and 2⁄0 blades,
lube, ring fi le, nail salon sanding sticks,
Scotch Brite wheel
Forming Tools: Vise mounted on heavy
table, hand power drill with adjustable
chuck, stepped oval bracelet mandrel,
non-marring mallet
Annealing and Soldering: 12" x 12"
Solderite soldering board cut in half;
air/acetylene Smith Silversmith torch
with #0, #1, and #2 tips or butane torch;
bucket of water; copper tongs; solder
pick; cutters; Prips fl ux in spray bottle;
pickle pot
Finishing: Bench polisher or shot-fi lled
tumbler setup and rotary tool; clean
muslin buff s and Fabuluster polishing
compound; hot, soapy water and
toothbrush

SOURCES
Most tools and materials for this project
are available from well-stocked jewelry
supply vendors, many of whom can be
found in our Advertisers’ Index, page


  1. Copper tubing and wire are from
    hardware stores.


What


You Need


Project Demo


1 2


5


3 4


dropping the hot metal into a large,
water-fi lled bucket on the fl oor. I use
copper tongs.

3


Flatten one end of the 12-gauge
wire on a bench block with a
hammer until it is about the same
thickness as your double twist wire,
so you can clamp the two securely
into your vise. Mine is an old cast-
iron Wilton vise I bought years ago
for $5 at an estate sale.

4


Trim the other end of the
12-gauge wire so it is the same
length as the double-twist and fi t
both deep into the chuck of your
drill, tightening securely. Press the
trigger and twist the wire until spi-
raled. This time, you are only going
to twist the wire 20-24 times. If the

wire comes loose from the vise or
the drill chuck, trim, reinsert, tighten,
and try again. Anneal and quench
when done.

5


Trim to a 6" or 7" length, using
heavy duty wire cutters. Use a
fi le and sanding sticks to smooth
the ends so they won’t scratch your
skin. Mount your oval step mandrel
in your vise. Wrap the wire around
the mandrel and use a non-marring
mallet to shape. I start with the small-
est ring on the mandrel and work my
way to the next largest size. Once
formed, scrub well with a tooth brush
and hot, soapy water, then burnish by
processing the cuff several hours in a
shot-fi lled tumbler setup.
Tip: To prevent wires from fraying
during wear, flux the ends with Prips

MAY/JUNE 2020 77


76 Lehndorff_DoTheTwist_Demo_mayjune20.indd 77 3/17/20 9:59 AM

Free download pdf