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Old 06-18-2014, 10:15 AM
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MP&C MP&C is offline
MetalShaper of the month Feb.-11, July - 2018, Sept. 2020
 
Join Date: Mar 2010
Location: Leonardtown, MD
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Quote:
Originally Posted by Jerry Jackson View Post
A great video! What is the purpose of 'pinching' the sides together (pumping?).

Jerry

San Antonio
Quote:
Originally Posted by toreadorxlt View Post
Noobie questions maybe somebody can help me with:

Why is he very particular about how his partner holds the panel? Wouldn't the same shape be induced either way? Is he trying to get his partner to induce a closer to final arrangement while adding shape?

I typically wheel alone, and the other end slips on larger panels, but it seems like my shape doesn't suffer, only arrangement.



If one were to planish a spot on a sheet of metal using a hammer on top and dolly beneath, this may add some stretch but things don't change all that quickly as the metal has not be persuaded very well in which direction to go.

Now take a sheet of metal on a shot bag and strike it with a blocking hammer. This has given the panel a bit of stretch, but also given it direction.


RE: the helper holding the panel in tighter at the front of the panel, the hood has more crown across the front edge than the back edge, so it is being given more persuasion.
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Last edited by MP&C; 06-18-2014 at 10:25 AM.
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