[TheForge] Small power hammer question

[Chris Kilpatrick]

Close, but no.

Here is the one I am talking about:
www.appaltree.net/rusty 

I am wanting to merge the 2 designs, but using a mountain bike wheel and gears to control speed.
I think I might be under engineering this, but it will be only a 25# hammer.

According to my calculations, the rotation will only be equal to about 10 mph, and the force should be less than me bouncing down a hill on a bike, but want someone to double check my thinking here.

-Chris K.

----- Original Message -----
From: Northpt <northpt at blarg.net>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Subject: Re: [TheForge] Small power hammer question
Date: Tue, 27 Dec 2005 15:36:52 -0800

> 
> Is the hammer you're talking about pictured at  
> http://www.anvilfire.com/power/jyh/green/nc-jyh.htm
> 
> Are there any plans available?
> 
> Thanks!!!
> 
> 
> 
> 
> 
> Roger R Degner wrote:
> 
> > I have not watched the "rusty" Appalachian power hammer work but I have
> > watched the North Carolina tire hammer and it was the nicest 50#
> > mechanical hammer I have seen.  Clay Spencer is having build workshops
> > for groups.  The one I watched was at the Alabama Conference in Dec
> > 2005.  It seamed to hit hard and it stopped the instant he let off the
> > treadle usually at the top of the stroke were it belonged. Clay had all
> > his spring tooling from his treadle hammer adapted to be used with this
> > hammer.
> > Basically it is a 1 hp motor, the rear axel, hub and throw away spare
> > tire from a front wheel drive vehicle.  Everything else was steel welded
> > up to make the hammer.
> > The electric motor pivoted to make contact via a flat pulley to the
> > spare tire making the clutch.  The drive mechanism was similar to 
> > a Little Giant but made of flat stock
> > welded up along with a pillow block bearing, one coil spring and some
> > bronze bearing stock.
> >
> > Again a very nice hammer.
> > Clay was working on a couple more dates for builds but I don't know when
> > or were but I believe they were in the S.E. .
> >
> > Roger R Degner
> >
> >
> >
> >
> >
> >
> >
> >
> 
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It is I who formed the blacksmith, 
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fashions a weapon fit for it's work.


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