[TheForge] Krause/Nazel type air hammer

Mon Dec 2 00:15:01 2002

At 04:54 AM 12/1/02, you wrote:


When Mark K hadn't yet built his bigger hammer he said that he thought he 
had found an off the shelf valve that could be easily modified..but wasn't 
positive about it yet..don't know if that went anywhere......Pete


>         Shannell, this is a good point.  The valve is pretty much the hard
>part of the project other than some general fabrication one has to go thru
>to frame and build a hammer.
>         If someone has a valve they have machined, or something they have
>altered that works, it would save many people a lot of time in making
>hammers like this.  To eliminate the need for a full time air compressor
>would be a big plus along with gaining more control, and a harder hitting
>hammer. (then again, I'm pretty happy with mechanical hammers as I like to
>tinker on machinery anyhow).
>
>Ralph
>
>
>----- Original Message -----
>From: "Shannell Sugrue" <[email protected]>
>To: <[email protected]>
>Sent: Monday, December 02, 2002 1:23 AM
>Subject: Re: [TheForge] Krause/Nazel type air hammer
>
>
> > Yeah, keep it on list, Im interested in building a nazel like hammer one
>day
> > and I dont yet understand how the valving on these work.
> >
> >
> > ----- Original Message -----
> > From: "Ed F" <[email protected]>
> > To: <[email protected]>
> > Sent: 30 November, 2002 10:17 PM
> > Subject: Re: [TheForge] Krause/Nazel type air hammer
> >
> >
> > > Why not on the list?  This stuff is interesting
> > > Ed
> > > ----- Original Message -----
> > > From: "Bob Smolen" <[email protected]>
> > > To: <[email protected]>
> > > Sent: Saturday, November 30, 2002 11:53 PM
> > > Subject: Re: [TheForge] Krause/Nazel type air hammer
> > >
> > >
> > > > Steve and Mike,
> > > > I have built a nazeloid based on Mark's design and help. I need to
> > enlarge
> > > > the ports, but otherwise I belive it will work like Mark's. If
> > intereted,
> > > > contact me off the list if you have any questions. I am not expert
>,but
> > I
> > > > have made plenty of mistakes to learn from.
> > > > Bob
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Steve Smith" <[email protected]>
> > > > To: <[email protected]>
> > > > Sent: Saturday, November 30, 2002 1:55 PM
> > > > Subject: Re: [TheForge] Krause/Nazel type air hammer
> > > >
> > > >
> > > > > The idea is pretty straightforward. You use a motor to drive a
>double
> > > > > acting air cylinder. This is connected to the ram air cylinder (also
> > > > > double acting) via the air ports. The air provides the give in the
> > > > > hammer that is done in a Little Giant with a spring and toggle arms.
> > > > >
> > > > > The big advantage over the Kinyon style is control. The Kinyon
>hammer
> > > > > ram just bounces between top and bottom (or the top and the work).
>The
> > > > > Kinyon can only push the ram from one side at a time (assuming I
> > > > > understand how the Kinyon works...). The Krause/Nazel hammer applies
> > air
> > > > > to both sides of the piston. The side with the most pressure
>dictates
> > > > > which way the ram will move. The pressure can be reversed
>immediately
> > by
> > > > > changing the foot treadle position (and altering the balance of
> > > > > pressure). This makes it much more responsive.
> > > > >
> > > > > It is also a way to avoid buying a very large compressor that I
>don't
> > > > > have a lot of other use for. Since I'm doing this for fun, I get to
> > > > > build it myself and mess around with something different.
> > > > >
> > > > > Steve
> > > > >
> > > > > mike wolfe wrote:
> > > > > >
> > > > > >
> > > > > > Steve Smith wrote:
> > > > > >
> > > > > >> I'm starting on building a Krause/Nazel type air hammer,
> > > > > >
> > > > > >
> > > > > >
> > > > > > Steve:
> > > > > > Tell me more about the Krause/Nazel type air hammer, I had seen it
> > in
> > > > > > operation at the conference, and I had been waiting for Mark to go
> > > > > > further with its evolution, I also thought "Sid" was getting
> > involved
> > > > > > with the project a while back.
> > > > > > I have not heard anything for a while until you had talked of it.
> > > > > > Are there new plans or new developments about the Krause/Nazel
>type
> > > air
> > > > > > hammer.
> > > > > > Any info would be wonderful..
> > > > > >
> > > > > > Thanks
> > > > > > Mike Wolfe
> > > > > >
> > > > > >
> > > > > >
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