[TheForge] Punch press dies

[Bruce Freeman]

I don't know squat about it, but  my old Machinery's Handbook seems to
have a section that deals with the question.

On Mon, Jul 18, 2011 at 1:45 PM, Bob Ehrenberger <eforge at centurytel.net> wrote:
> I'm thinking of making some hole punch dies for my press.  I know that there
> is a formula to determine the clearance between the punch and the bolster.
> Do any of you know how much oversized the bolster needs to be?
>
> Robert Ehrenberger
> Shelbyville, Mo.
> eforge at centurytel.net
>
>
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-- 
Bruce
NJ