[TheForge] Krause/Nazel type air hammer
Shannell Sugrue
[email protected]
Mon Dec 2 02:51:00 2002
I want to know about the valve, I understand there is a booklet available
with details on how it works and I dont want to circumvent anyone making a
little money on their own ideas but is this a new design or just a rehash of
how factories have made their hammer valving, I know M.Kruse did make it
simpler so mabey thats whats different.
I understand it feeds a proportion of the air to the driven cyl depending
on throttle setting and the rest is fed to the other side of the pumping
cylinder and its a pretty much closed system, the same air is used and any
losses are regained through check valves. Is this sorta close??
I have an idea in my head of how a valve like this might be made but I
could be way off so seeing one dismantled would be very interesting.
----- Original Message -----
From: "Bob Smolen" <[email protected]>
To: <[email protected]>
Sent: 01 December, 2002 11:39 PM
Subject: Re: [TheForge] Krause/Nazel type air hammer
> 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
> > > > > >
> > > > > >
> > > > > >
> > > > > > _______________________________________________
> > > > > > http://mailman.qth.net/mailman/listinfo/theforge
> > > > > > theforge mail list group photo site is
> > > > > > http://www.photoaccess.com
> > > > > > Login: [email protected]
> > > > > > password: anvil
> > > > > > ___________
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > > _______________________________________________
> > > > > http://mailman.qth.net/mailman/listinfo/theforge
> > > > > theforge mail list group photo site is
> > > > > http://www.photoaccess.com
> > > > > Login: [email protected]
> > > > > password: anvil
> > > > > ___________
> > > > >
> > > > >
> > > >
> > > > _______________________________________________
> > > > http://mailman.qth.net/mailman/listinfo/theforge
> > > > theforge mail list group photo site is
> > > > http://www.photoaccess.com
> > > > Login: [email protected]
> > > > password: anvil
> > > > ___________
> > > >
> > > >
> > > >
> > >
> > > _______________________________________________
> > > http://mailman.qth.net/mailman/listinfo/theforge
> > > theforge mail list group photo site is
> > > http://www.photoaccess.com
> > > Login: [email protected]
> > > password: anvil
> > > ___________
> > >
> > >
> > >
> >
> > _______________________________________________
> > http://mailman.qth.net/mailman/listinfo/theforge
> > theforge mail list group photo site is
> > http://www.photoaccess.com
> > Login: [email protected]
> > password: anvil
> > ___________
> >
> >
>
> _______________________________________________
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login: [email protected]
> password: anvil
> ___________
>
>
>