Glass Blown Flowers

That's Clever! : Episode HCLVR-135 -- More Projects »
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Project by Gini Garcia from San Antonio, Texas.
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Gini Garcia pursued a degree and then a career in industrial design. Having a love for color and the need to be creative with her hands, she longed to find ways to design via computer. On a trip to New Orleans, Garcia came across a glass blowing shop. The honey-like quality of the hot glass and the colorful pieces that could be made from it, inspired her to enroll in a workshop. Soon she was spending more time working with glass than on her computer. Her expertise is shown in these beautiful hand-blown glass flowers.

Materials:

blowpipes
punty rods
molten glass
jacks
diamond shears
frit colored glass
workbench
marver table
wet newspaper
annealing ovens
glory holes
furnace
face shield
glass blowing glasses
Kelvar gloves
Note: Gini Garcia wore protective glasses throughout the entire glass blowing process, except when she took the flower out of the oven.

Steps:

1. Draw the flower shape, design and color on paper. The colors used are made up of assorted metal oxides combined with clear glass. The powder comes in various sizes of crushed up colored glass called frit.

2. Heat up the tip of the blowpipe. Heating the pipe takes three minutes. The blowpipe is hollow and made of stainless steel.

3. Open the furnace door and dip the end of the pipe into the molten glass. The liquid glass is 2150 degrees and glows. After gathering, shape the glass using a wooden tool called a block.

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Figure A
4. After cooling it down evenly, trap a bit of air into the pipe. The heat at the end of the pipe expands the air and blows its own starter bubble through the glass (figure A). This takes one and a half minutes.

5. After creating a starter bubble, reheat the glass in the glory hole (a reheating chamber). The heating takes 30 seconds.

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Figure B
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Figure C
6. Put the heated bubble into an optic mold, which gives the bubble ribs (figure B). Reheat the bubble in the glory hole for a few seconds and roll through colored glass powder. The color sticks to the ribs creating a vertical striped pattern.

7. Reheat it again; sit at the bench, and with a pair of tweezers pull at the end of the bubble while turning the pipe (figure C). This action twists the colored lines on the bubble. Trim the end using diamond shears. All this takes two minutes.

8. Follow step 5 again leaving out twisting the bubble. This takes one and a half minutes.

9. Allow the bubble to cool about three minutes or until the bubble has stopped moving.