I reference a story in the docs, about the first ornament I made. I originally learned this technique at Chicago Hot Glass during a 2-hour mini-class. When you blow the bulbs too hard it gets so thin it has the consistency of saran wrap.... very thin, sharp, and hot. That glass breaks into dust and flies away easily. I learned this first hand when I made this mistake, aimed at my neighbor's face.... fortunately no one was hurt!
PDF available upon request.
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Glass Ornament Blowing
Safety!
Closed-toed shoes required! If
you are wearing anything less and there is an accident, how will you
count to 20 for the rest of your life?
Don't chase glass! Try and
imagine a beautiful glass ornament you've worked hard on for 20
minutes. Imagine it slipping out of your grip and tumbling through
the air, glittering as it goes. Imagine it shattering on the floor.
Imagine getting over it! It doesn't matter how good your
medical insurance is, a trip to the ER for stitches and burns is not
worth a few dollars in glass and fuel! This is a cardinal rule of
glasswork of any kind! Besides, you'll have more fun making it again
after we sweep up the shards.
Party like it's 1099°... Glass
doesn't begin to glow until around 1100 °F (or hotter!). Unless you
are very sure how long a piece of glass has been cooling, assume it
is 1000° (and remember skin sublimates at 800°). Use tools
and gloves to handle dubious glass.
Lead Poisoning is very period,
but let's overlook that at the torch. If you are working with glass
powder or very fine frit, inhaling it could lead to lead poisoning
(death), silicosis (death), and wasting glass (worse
than death). Use these substances in a well ventilated area, ideally
a fume hood! This should not be a problem while making ornaments, but
its worth mentioning anyway!
Eye surgery is $5,000. A Braille
machine is $2,000. A pair of quality lampworking goggles is $40. A
pair of capable sunglasses is $10. While looking at a torch for an
extended period, even while just observing, you need to protect your
eyes. Eye protection is provided. If available please use the
Didymium/ACE 202 glasses (Big, purple lenses). If they are being
used, please grab a pair of sunglasses, they are better than nothing
and will catch your neighbor's mistakes! If nothing else, for the
short time we are working, not wearing glasses shouldn't cause any
permanent harm. Ask
Brynn about the first time he made an ornament...
History
The history of glass ornaments is
almost as brief as this paragraph, relatively speaking. Unfortunately
ornaments are NOT period, but they are a fairly safe introduction to
lampworking, which is. The first glass Christmas ornaments were made
in the area around Lauscha, Germany in the mid-1800s.
The first ornaments were made to
resemble fruit, nuts, and other natural items that families were
using for 50 years to decorate their trees. The ornament makes
discovered a huge market for their wares and in the 1880s and 1890s
W.F. Woolworth began importing glass ornaments. He was selling $25
million worth every year. (Source:
http://www.ornamentshop.com/history_story/part2.asp)
1
– MAPP Gas Tank (MAPP-type gasses burn around 5,301°F, compared to
Propane which, at best, reaches 3,623°F)
2
– Hot Head torch (This is a cheap entry-level torch. Contrary to
what some will say, it can do almost everything dual-gas torches do
for beadmaking)
3
– Didymium Glasses (The best choice for “soft glass” work. For
a short period of time they aren't needed but recommended!)
4
– Flint Striker (The lighter of choice for torches)
5
– Sample Ornaments (The finished product. It can be 1 color or
many, melted in (like the green) or grainy (like the other two))
6
– COE 90 Rods (For “wrapping” around the outside, of you
choose.)
7
– COE 90 Dichroic strips (Also for wrapping. Dichro-side down!)
8
– Speedy Sharp Carbide Cutter (Made for sharpening knives, it works
well at cutting glass tubing)
9
– COE 90 Frit (The color to our ornament!)
10
– Glass ornament bulb/glaskolben (A pulled glass “point” we
will fill with frit and melt and blow)
11
– Ornament cap/hook (to hang your ornament with!)
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