Donut Link Bracelet, Biżuteria projekty
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The ample diameter of the
bracelet links provides a good
surface for experimenting with
texture. 7
1
⁄
2
in. (19.1cm).
intermediate
metalclay
d
o
nut link
by Hadar Jacobson
Adding glycerin to metal clay is the key to giving these links strength and flexibility before firing.
a r t j ew e l r y m a g . c o m
bracelet
Interlock textured, flat links for a deceptively svelte bracelet.
options
Asanalternativeto
textureplates,consider
usingtexturedpaper,
suchaswallpaper
samples.
1
2
3
materials
Metal clay: 28–43g
Metal clay slip
Fine-silver wire: 18-gauge
(1.0mm), round, half-hard
1
1
⁄
4
in. (32mm)
tools & supplies
Sturdy, flexible work surface
Acrylic roller
Glycerin
Plastic sheet
Texture plates
Natural hand balm
Playing cards
Circle cutters: 25mm, 20mm
15mm, 10mm, 8mm diameter
Craft knife
Craft sticks (optional)
Tissue blade
Pencil or dowel
Chainnose pliers
Fine-tipped paintbrush
Small clothespins
Kiln, kiln shelf, alumina hydrate
Liver of sulfur
Flex shaft, coarse minifiber wheel
Sandpaper: 220-grit wet/dry
Tumbler, steel shot, burnishing
compound
Clay tools (optional)
Textured wallpaper samples
(optional)
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■
■
■
■
■
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4
5
Condition the metal clay.
Mixing glycerin
with the clay gives the clay a pliability that is
necessary for manipulating the links. Clay
mixed with glycerin is dry enough to fire
when it is not sticky to the touch and when
all the moisture has evaporated.
On a sturdy, flexible work surface, use an
acrylic roller to roll 28g of metal clay into a
thin sheet. Spread six to eight drops of
glycerin on the clay sheet. Roll the clay
sheet into a long cylinder, and fold it in half.
Place the folded clay cylinder under a sheet
of plastic, and roll the clay into a sheet.
Continue to roll, fold, and flatten the clay
until it regains its original consistency and
is no longer sticky.
[1] Texture the clay.
Select two texture
plates, and place them face up on your
work surface. Rub natural hand balm on
the texture plates. Stack 2 playing cards
on each side of one texture plate. Lay
the clay on this texture plate. Place the
other texture plate, texture side down,
on top of the clay. Roll the clay out into
a long sheet
[1]
.
[2–4] Make the donut links.
Using a 20mm
(
25
⁄
32
-in.) circle cutter, cut as many disks as
possible out of the clay sheet
[2]
. Use a 10mm
(
3
⁄
8
-in.) circle cutter to cut holes in the center
of each disk
[3]
. Remove the excess clay
[4]
,
and reroll it into another sheet that is 2 cards
thick. Repeat steps 2–4 until you have a total
of 16 20mm (
25
⁄
32
-in.) donut links. If necessary,
condition more clay with glycerin and repeat
steps 1–3 to make additional donut links.
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■
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■
■
■
■
■
■
■
■
■
Make connecting links.
With the remaining
clay, roll another sheet that is 2 cards thick. Use
a 15mm (
19
⁄
32
-in.) circle cutter to cut out two
disks. Use an 8mm (
5
⁄
16
-in.) circle cutter to cut
holes in the center of the 15mm disks.
■
■
Make the toggle loop.
Use a 25mm (1-in.)
circle cutter to cut a disk for the toggle loop.
Use a 15mm (
19
⁄
32
-in.) circle cutter to cut a hole
in the center of the disk.
resources
PMC+ and PMC slip
pmc.com for a list of suppliers
Art Clay Silver and slip (Art Clay
World, USA: 866.381.0100,
artclayworld.com)
Glycerin, local pharmacies
Fine-silver wire (Rio Grande,
800.545.6566, riogrande.com)
■
■
[5] Cut the donut links.
With a craft knife, cut
a slit in half of the 20mm (
25
⁄
32
-in.) donut links.
Cut a slit in one 15mm (
19
⁄
32
-in.) connecting link.
Set the donut links aside to air dry while you
make the toggle bar.
■
■
a r t j ew e l r y m a g . c o m
texture
■
■
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■
7
6
8
[6–8] Make the toggle bar.
Between the
two texture plates, roll a lump of clay to 12
playing cards or 2 craft sticks thick
[6]
. Use
a tissue blade to cut the clay to a 5 x 30mm
(
3
⁄
16
x 1
3
⁄
16
-in.) rectangle. Cut a 32mm (1¼-in.)
piece of 18-gauge (1.0mm) fine-silver wire.
Wrap the wire around a pencil or dowel to
bend it into a U shape. Measure 3mm (
1
⁄
8
in.)
from one wire end. Using chainnose pliers,
make a right-angle bend at this measurement
so the 3mm (
1
⁄
8
-in.) wire end points away
from the U. Repeat with the other wire end
[7]
. Check that the U is large enough to
accept a 15mm (
19
⁄
32
-in.) donut link. Insert
the wire ends 1mm (
1
⁄
32
in.) into the toggle
bar. Place clay over the wire ends. Using a
fine-tipped paintbrush, dab metal clay slip
around the holes, and allow the toggle
bar to air dry
[8]
.
[9–11] Assemble the bracelet.
Check that
the donut links are not tacky to the touch.
They should be pliable, but they should not
stick to one another as you connect them.
Link the 20mm donut links by sliding two
uncut donut links onto a cut donut link
[9]
.
Continue connecting the 20mm donut links
to form a chain
[10]
. Make sure that the last
donut link on each end has a cut. Link the
toggle loop to one end. At the other end,
link the two 15mm connecting links, ending
with the cut connecting link. Connect the
toggle bar to the end connecting link
[11]
.
Measure the length of the bracelet, and
calculate the manufacturer’s percentage
of postfiring shrinkage. (See “Firing Data
Chart,”
page 4
.) Make and add more
links if necessary.
9
10
11
a r t j ew e l r y m a g . c o m
onmaking
invisibleseams
Selecttextureplateswithlinear
patternsthatwillconcealthelink
seams.Useclaytoolsandfresh
claytore-createthetexture
aftertheseamhasdried.
12
13
[12] Seal the donut link cuts, and dry.
Brush slip on the cuts of the donut links to
close the openings.
Secure the seams with
small clothespins, and dry. Remove the
clothespins to check the bond, and apply
more slip if necessary. Allow to air dry.
Firing Data Chart
Manufacturer Firing
Firing
Firing time Shrinkage
& type
method
temperature
(minutes)
(percent)
Art Clay
Torch or kiln 1600
°
F(871
°
C)
10
8–12
Regular
1560
°
F(849
°
C)
20
[13] Check the closure.
Before firing,
gently check that the toggle bar will fit
through the toggle loop at the end of
the bracelet. Allow the bracelet to dry
completely. Before firing, all moisture
must have evaporated from the clay.
1472
°
F(800
°
C)
30
Art Clay
Torch or kiln 1435
°
F(779C)
5
8–9
650 Low Fire
1380
°
F(749
°
C)
10
1290
°
F(699
°
C)
15
1200
°
F(649
°
C)
30
Fire the bracelet.
Arrange the bracelet in
a circle on a layer of alumina hydrate on
the kiln shelf. Sprinkle alumina hydrate
over the bracelet, and fire according to
the manufacturer’s instructions.
Art Clay
Torch or kiln 1600
°
F(871
°
C)
10
8–12
Silver–Slow Dry
1560
°
F(849
°
C)
20
1472
°
F(800
°
C)
30
PMC Standard
Kiln
1650
°
F(899
°
C)
120
25–30
Patinate and finish the bracelet.
Immerse
the bracelet in liver of sulfur long enough
for it to turn black. Dry the bracelet, and
buff the links with a coarse minifiber
wheel mounted on a flex shaft. Use
220-grit sandpaper to sand the edges of
the links, and polish the bracelet for an
hour in a tumbler with steel shot and
burnishing compound.
PMC+
Kiln
1650
°
F(899
°
C)
10
10–15
1560
°
F(849
°
C)
20
1470
°
F(800
°
C)
30
PMC3
Torch or kiln 1290
°
F(699
°
C)
10
10–15
1200
°
F(649
°
C)
20
1110
°
F(599
°
C)
30
a r t j ew e l r y m a g . c o m
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