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Old 08-30-2018, 12:20 PM
crystallographic crystallographic is offline
MetalShaper of the Month October '14 & April '16
Join Date: Dec 2010
Location: Western Sierra Nevadas, Badger Hill, CA
Posts: 3,060
Default Jack Hammer shaping

Using air/pneumatic impact tools can save your arm and your time.
One of my long-time students, George Schroeder,
asked me about up-grading his air motors to do 1/8in copper, a few years back.

I suggested a 5/8in. bridge riveter and instead, he came home from a local garage sale with an old jack hammer and then he made up a good hammer die for it.
Annealing .125" copper takes some heat.
The buck has to be accurate
George Buck.jpg
The copper bowl for the Celtic fountain turned out nicely.
5-sided, with radial hammer strikes around the rim, it is riveted and sealed and sits on a carved granite base. A really nice job! - done with a jack hammer.

"All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919.
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Old 08-30-2018, 12:41 PM
Stretch Stretch is offline
MetalShaper of the Month Aug 2016, Feb 2017, Sept 2018
Join Date: Dec 2014
Location: Cornwall, England
Posts: 425

That's beautiful. I love copper art. One day I'll have a bash at something copper, too! Thanks for sharing Kent 👍
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Old 08-30-2018, 07:56 PM
Kerry Pinkerton's Avatar
Kerry Pinkerton Kerry Pinkerton is offline
Join Date: May 2009
Location: Near Huntsville, Alabama. Just south of the Tennessee line off I65
Posts: 7,568

what kind of compressor was he running it with?
Kerry Pinkerton
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Old 08-30-2018, 09:11 PM
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MP&C MP&C is offline
MetalShaper of the month Feb.-11, July - 2018
Join Date: Mar 2010
Location: Leonardtown, MD
Posts: 1,311

nicely done!

Instagram @ mccartney_paint_and_custom
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Old 08-31-2018, 05:43 AM
Gojeep Gojeep is offline
MetalShaper of the Month March 2015
Join Date: Nov 2013
Location: Eastern Melbourne, Australia
Posts: 1,688

That looks great!
aka. Gojeep
Victoria, Australia

Invention is a combination of brains and materials.
The more brains you use, the less materials you need.
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