[TheForge] flypress

Sat Sep 27 00:33:01 2003

I read from the Houston area smiths that Gold Machine in New Jersey
sometimes has them.

Ed
----- Original Message -----
From: "Bob Smolen" <[email protected]>
To: <[email protected]>
Sent: Friday, September 26, 2003 10:58 PM
Subject: Re: [TheForge] flypress

> 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
> > >>>
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