[TheForge] Krause/Nazel type air hammer

Mon Dec 2 02:17:01 2002

To those who asked for nazeloid information, I will respond on the list ,
but warn that I am neither a machinist or engineer so I can only comment on
my experience.I want to avoid a lot of "why didnt you do it this way" kinds
of questions. There are no doubt better ways than mine and I only know what
I did. I dont recommend to others. They can form their own opinions.

I havent worked on the hammer for months but the size is approx. 40 lb ram,3
h.p. motor, 4" drive cylinder and 2 " ram cylinder. The stroke on the drive
cylinder is about 6" and I believe the ports are standard 3/8 fittings. I
machined a valve as described in Mark's book and based on additional info I
obtained from several E mails to him. Mark has been extremely helpful and
generous with his knowledge. I take no credit for any good ideas or insight
on the project.If it was good, I learned from Mark. If bad, it is my own
mistake.

Bob Schade's points re  few nazeloids operating is true and surprising, but
I hope one of us will soon have an operating model. John Larson on the
Keenjunk site has posted quite a lot . He has a larger working hammer.
Search the archives there before you ask questions which have probably
already been covered  by John. If you are still interested, I will comment
on line to my experience.
Keep pounding.
Bob

----- Original Message -----
From: "Shannell Sugrue" <[email protected]>
To: <[email protected]>
Sent: Monday, December 02, 2002 12:23 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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