a question for the mechanical engineer

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a question for the mechanical engineer

Postby Bob Hammond » Wed Apr 13, 2016 5:39 pm

Hello,

I turned this persuader from a bit of ash, and it's proven handy. A friend hefted it, and I mentioned that I read an article that discussed the mechanical properties of a hammer, and the conclusion was that there is an optimal balance point on the handle, where the transfer of power of the swing was maximized for delivery to the target rather than the hand & arm.

Does anybody know the reference?

You could imagine this in a different way. Just imagine that you were the first batter on Opening Day and swatted the baseball...
Attachments
IMG_20160413_173636.jpg
the handle and head were textured to grip.
Bob Hammond
 
Posts: 559
Joined: Sun Jul 22, 2012 4:13 pm

Re: a question for the mechanical engineer

Postby David King » Wed Apr 13, 2016 10:32 pm

I'd be tempted to drill out the head and keep filling it with steel shot until you hit the optimum mass. If you didn't want a "dead-blow" you could encapsulate the shot with epoxy to immobilize it in the head.
Also some flexibility in the shaft may help insulate the operator from shock transmission to the handle and hand.
David King
 
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Joined: Sat Jan 07, 2012 10:01 pm
Location: Portland, OR

Re: a question for the mechanical engineer

Postby Eric Baack » Thu Apr 14, 2016 9:14 am

or wrap the handle with some grip tape.
Eric Baack
 
Posts: 599
Joined: Thu Dec 27, 2012 4:28 pm


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