[TheForge] flypress

Fri Sep 26 23:25:08 2003

Steve,
If you had to double the length of the bump or give up some travel, would
you still find the press useful? Obviously, I am on the fence about buying a
screwpress. I wonder if it would be satisfactory. I have never seen a
flypress for sale so figure a screwpress is the next best thing short of
buying a new  import from India. How did you find your press?
Thanks,
Bob.
----- Original Message -----
From: "Steve Smith" <[email protected]>
To: <[email protected]>
Sent: Friday, September 26, 2003 6:23 AM
Subject: Re: [TheForge] flypress


> My flypress moves about 5/16" for a typical swing where you keep your
> hand on the handle (you don't "let fly"). This amounts to about one foot
> of travel around the perimiter. So mine moves roughly 3" if you move the
> handle in a full revolution.
>
> I never end up using it that way, I use short blows repeated, such as
> you would do in splitting a groove.
>
> Steve Smith
>
> Bob Smolen wrote:
>
> > David,
> > Thanks for the info.
> > The difference in the screw was my understanding as well. How much
> > difference does the extra travel of a flypress make in the use of
tooling? A
> > 3 start 3tpi (as on a flypress) will move the ram 1" per rev of
handwheel. A
> > single start will move it 1/3 of an inch. If a full turn of a screwpress
> > goes 1/3inch, that would push a punch or splitter nicely .Is that too
much
> > effort for using tooling?There aren't many times when 1/3 in. movement
in
> > one stroke  is obtained thru other means. I have seen the pictures of
guys
> > forging tenons with a flypress.  I am not as interested in forging with
a
> > press, more interested in quiet use of tooling. Can somone comment based
on
> > their experience?
> > Thanks,
> > Bob
> >
> >
> > ----- Original Message -----
> > From: "David E. Smucker" <[email protected]>
> > To: <[email protected]>
> > Sent: Wednesday, September 24, 2003 6:21 AM
> > Subject: Re: [TheForge] flypress
> >
> >
> >
> >>One major difference is the screws.  Most screw presses or tryout
presses
> >>used in a die shop are built with a single tread on the screw (screw
tread
> >>starts at on point.)  This is slower acting but produces high force or
> >>tonnage.  The flypress now being sold for blacksmithing have  mutli
tread
> >>screws.  Some up to four treads starting at the same point.  They have 4
> >>time the lead for the same pitch of thread.  This means that the screw
> >>advances 4 times as fast as a single screw.  Still a lot of force but
not
> >
> > as
> >
> >>much as a single tread -- but 4 times the speed.  Said to be "better"
for
> >>forging.  Really depends on what you are doing.
> >>
> >>Dave Smucker
> >>----- Original Message -----
> >>From: "Bob Smolen" <[email protected]>
> >>To: <[email protected]>
> >>Sent: Tuesday, September 23, 2003 10:39 PM
> >>Subject: [TheForge] flypress
> >>
> >>
> >>
> >>>Can someone explain the difference between  the popular flypress used
by
> >>>blacksmiths and the screw press or tryout press used in die shops. How
> >
> > are
> >
> >>>they different?
> >>>Thanks,
> >>>Bob
> >>>
> >>>_______________________________________________
> >>>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
> ___________
>
>