Lampworking 101
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Introduction
to Lampworking |
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How to Make Penguin Beads - Demo
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| Since then, I’ve taken classes at Sawtooth Center, talked with dozens more bead artists and studied lots of beadmaking books. I’ve given myself permission to create “ugly beads” so that I could learn different techniques and color combinations. I am looking forward to passing on this information to you. ~Dawn Wick | ||
Lampworking Setup, Glass, Safety and FAQ
| Setup |
Description |
| HotHead Torch |
Heat |
| MAPP Gas |
Gas for torch |
| Bracket |
To hold torch in place |
| Mandrels |
To wrap the glass around |
| Rods |
Glass Rods |
| Rod Holder |
Holds the glass rods while not in use |
| Bead Release |
So glass doesn’t stick to mandrel |
| Needle Nosed Fisherman's Pliers |
For shaping, removing, stretching glass |
| Tiles (2) |
One goes under torch to catch broken glass and
the other is used to place stringer |
| Didymium Glasses
|
Eye protection – removes flare from torch |
| Shaping Paddle |
For flattening bead, shaping bead |
| Utility knife |
For shaping the bead |
| Vise Grip Pliers |
For removing the beads from the mandrels |
| Bead Reamer |
To clean the release from the bead |
| Diamond File |
To smooth any rough edges |
| Vermiculite or fiber blanket |
Place beads in vermiculate filled metal container
or between the fiber blanket while they cool (this method is not sufficient
for large beads) |
| Fire Extinguisher Band-aids, aloe, water |
Emergency, cuts and burns |
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Recommended Setup
(in addition to or in place of items in basic setup)
This setup will run around $400+ (the kiln is not included in this cost)
| Setup |
Description |
| Minor Torch |
This setup replaces the hothead and MAPP gas. The regulators and hose will connect the oxygen and propane tanks to the minor torch. |
| Oxygen Regulator | |
| Propane Regulator |
|
| Twin Hose Set |
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| Propane |
Mixed with oxygen for heat source |
| Oxygen |
Mixed with propane for heat source |
| Kiln |
To anneal the larger beads; fuse glass rods for
canework |
| Shaping Tools, marvers, rakes |
A variety of shaping tools |
| Frits/Powders |
To add a variety to your beads |
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About Art Glass and
Compatibility
All glass is not created equal. When you purchase glass, you’ll
see a notation regarding the "COE" of the glass. If you are wondering
what COE means, it is the Coefficient of Expansion. Glass expands
when it gets hot and contracts when it cools. The rate of this expansion
is called the COE. For example, a one inch piece of Bullseye brand
glass will expand 0.0000090 inches for each 1 degree Centigrade (about 1.8
degrees Fahrenheit) increase in temperature. This rate, which is commonly
known as the Coefficient of Expansion (COE), is usually expressed as a whole
number. Most Bullseye glass, for example, is said to have a COE of 90, and
is often referred to as COE90 glass. Effetre (Moretti) glass, commonly
used for lampworking, has a 104 COE, while Corning’s Pyrex glassware has
a 32 COE. By the way, standard window glass (also called "float" glass)
has a COE that is usually around 84-87, while.
What this COE means is that two glasses with considerably different
COEs are said to be incompatible. They cannot be fused together and should
be kept in separate areas of the glass studio to prevent their accidentally
becoming intermingled. You can sometimes get away with using two different
glasses where the COE is only one or two apart (say, a 90 with a 91), but
not always.
source: www.warmglass.com/Glass_compatibility.htm
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Rods, Frits and Powders
| Glass Type |
Coefficient of Expansion |
| Soft Glass |
Common types of rods,
frit and powders used for beads, marbles and buttons |
|
COE 104 |
|
COE 90 |
| Hard Glass |
Commonly used for pipes, sculptures and ornaments |
|
COE 32 |
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Lampworking
Health and Safety Guidelines
In addition to the common hazards expected when working with glass and
heat, namely cuts and burns, there are a few other safety considerations.
These considerations include, but are not limited to:
1. Eye Protection - Glass can sometimes shatter
when placed directly in the flame so you must protect your eyes from flying
glass fragments. You must also protect your eyes from potentially damaging
Ultraviolet and Infrared rays, which are emitted when you melt glass in
a flame. The standard eye protection for many lampworkers is "didymium"
glasses, which have the additional feature of filtering out the sidetracting
yellow glare given off molten glass.
2. Respiratory Hazards - Lampworking produces
a number of gasses and vapors which can affect your health. So, ventilation
in your work area is important. Windows at opposite ends of your
work area or a fan to move air away from you can help. If you find
that you feel slight short of breath or that you have a headache at the
end of a work session, it may be a sign that your ventilation is inadequate.
Dust particles also pose a health threat, so be sure to wet down any
questionable areas or spills with a spray bottle before wiping with a wet
rag to reduce the chances of inhaling particles.
3. Cuts and Burns - I take it for granted that
at some time I will burn myself (I am a natural klutz). There are a
few ways, though, to help reduce the chances of burns. Laying the hot
end of a rod away from you can help you remember which end to grab, reducing
chances of burns. Another tip is to arrange your work area so that
you never have to reach in front of your torch to get anything. Choose
your work clothes carefully, avoiding synthetic fibers, long loose sleeves,
shirts with open pockets or pants with folded cuffs. Of course, you
should never wear sandals or work barefoot. And, if you have long hair,
you should tie it back to reduce the chance of it catching on fire.
4. Tanks and Torch - Potential hazards also
exist any time you work with compressed gasses. Carefully follow any manufacturer's
instructions that come with your regulators or gas tanks. Check with your
suppliers or local welding shops for safe operating procedures.
Never move oxygen tanks without their protective cap in place.
Always store oxygen tanks either on their side and secured to prevent rolling,
or chained securely to a wall so they don't fall over.
Make sure that your torch is secured to the work surface so that it
doesn't move if hose is yanked, or the torch is bumped while working. Keep
all flammable and combustible materials well away from your torch. At the
end of each work/play day, shut off your tanks and bleed the pressure out
of the lines by opening your torch valves.
5. Other Hazards - These can include
muscle strains or other injuries from maneuvering heavy oxygen tanks or repetitive
movements (such as making hundreds of beads). Take frequent breaks and pay
attention to your body's signals to minimize these types of injuries.
source: http://www.sundanceglass.com/safetylg.html
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Frequently Asked Questions
1. If I can work with just the hothead and MAPP gas, why should I
upgrade to a torch outfit?
With the MAPP gas, the gas is premixed, so you don’t have any control
over the oxygen flow. It is necessary to control oxygen flow with
certain colors (white and reds immediately come to mind here). If
these colors do not have enough oxygen in the mix, then they will lose their
color and will become gray. The torch also provides a hotter and steadier
flame in which to work in.
2. Which glass is better to work with – Moretti or Bullseye?
I work with both – but not at the same time - because each has a few
certain colors that the other doesn’t have. And, since I use Bullseye sheet
glass, stringer and frit for fusing, I am able to combine these with the
Bullseye rods for beadmaking. Generally, though, the Moretti glass
is less expensive than the Bullseye so I tend to use it a bit more.
3. What is a stringer and how is it used?
A stringer is a thin rod of glass. You can either buy them or,
as I usually do, make them yourself by slowly pulling the glass rod out with
your pliers. The stringer is then used for decorating the beads.
4. How do you come up with ideas for beads?
Browse through some bead magazines, such as Bead and Button, and look
at the variety of beads in the ads. Look through catalogs – my tophat
penguin bead is the result of seeing a stuffed toy in a Christmas ad.
Take a walk – nature offers a plethora of ideas for free.
5. This sounds like fun, where can I find out more information about
Lampworking?
Go to bead shows and craft shows – there are usually several lampworkers
vending who will share information with you. Take a class in lampworking.
In addition to Artistic Escapades, Inc. which offers private/semiprivate
lessons, the Sawtooth Center regularly offers lampworking classes.
There are also several excellent books out there for lampworking.
Recommended Reading: