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Old 04-20-2016, 10:50 AM
gashammer gashammer is offline
Join Date: Feb 2011
Location: Colorado Springs
Posts: 71

George Barris at the Dannenhaur and Stauss facilities:

Mike K
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Old 04-20-2016, 08:29 PM
Frank bowman Frank bowman is offline
Join Date: Apr 2016
Location: St. Petersburg FL
Posts: 13

Such a huge help thank you guys! These are great thank you!
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Old 04-21-2016, 02:09 AM
Jaroslav Jaroslav is offline
Join Date: Dec 2012
Location: Czech Republic
Posts: 599

Yes, this photo is evidence that we need not be afraid to punch into the sheet, but watch on the hammer. The boy have a quite convincing expression on his face.
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Old 04-21-2016, 08:43 AM
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: 7,602

I found the link to Richard Ferguson's well thought out research on Helve Hammers. For those who have not met him, Richard is an engineer turned metal artist. Back at MetalMeet '01, he and I worked on measuring ewheel deflection as a way of validating a spreadsheet he had created to predict ewheel stiffness. That spreadsheet is posted on our site and I use it every time I think about designing a new ewheel frame. He's a really smart guy.

And here is a link to a write up on his own small helve:
Kerry Pinkerton
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