Re: Diacro question

Stan,

#3. don't know the top plate diameter. I could measure it tomorrow.

Are you working on some kind of bender?

Doug

--- In CAD_CAM_EDM_DRO@y..., STAN MCDONALD <SMCDONAL@K...> wrote:
> You mentioned a diacro bender. What # is is? 1 2 3 or 4 and if more
then 2
> how big is the top plate in dia?
> Thanks
> Stan
>
>
> dougrasmussen@c... wrote:
>
> > Stan,
> >
> > I don't understand all your design parameters, but I accomplished
> > something similiar without too much expense and work.
> >
> > In my case it was to power a Diacro rotary bender. I wrapped the
OD
> > of the table with a length of roller chain (kind of like making
the
> > OD into a gear). The rotation was powered by by a hydraulic motor
> > with a small sprocket which meshed with the OD "gear". Same thing
> > might be done with a pnuematic motor, although hydraulics provide
> > much, much more possible torque.
> >
> > Incidently, In case you find a way to do your project with an air
> > cylinder, most all pnuematic cylinders and components can be run
off
> > low pressure hydraulics since the newer seals will withstand the
> > effects of the hydraulic fluid. With hydraulics you can safely
run
> > the cylinders up to at least 250psi making for a much shorter
lever
> > arm. Hydraulic pumps can be a problem finding at a bargain price,
> > I've been told auto power steering pumps make a good substitute
> > (never tried it myself).
> >
> > Doug
> >
> > --- In CAD_CAM_EDM_DRO@y..., STAN MCDONALD <SMCDONAL@K...> wrote:
> > > I never heard of htis rotary cylinder. What I am atempting to
> > eliminate is ME
> > > pulling on a 48" bar and forcing the table around..
> > > Thanks
> > >
> > >
> > > Smoke wrote:
> > >
> > > > Better yet, maybe I can describe it...others might be
interested
> > too.
> > > > Instead of using a standard push/pull cyklinder, incorporate a
> > rotary air
> > > > cylinder into the bottom of the table.
> > > > These can be puchased or you could build it into the table.
The
> > 1-1/2"
> > > > thickness of the table would be plenty to allow for this and
you
> > could
> > > > eliminate the arm sticking out from the side.
> > > > You could also build in adjustable stops to regulate the
amount
> > of travel
> > > > tyou require. Travel can be well ove 300 degrees using this
> > method.
> > > >
> > > > Smoke
> > > >
> > > > >Hello list I am working on a project and need to request your
> > assistance. I
> > > > >am atempting to make a rotary turning table to be driven by
an
> > air cylinder
> > > > >and I need to have the cylinder be retracted and then when
fully
> > extended
> > > > >have the table have moved min 200 degrees or more. The
problem I
> > have run
> > > > >into is when the cylinder has moved the table 180 degrees (
how
> > do we
> > > > >position the cylinder so that we would not need to stop
remove
> > the cylinder
> > > > >and then retract the cylinder with it on the other side of
> > center?
> > > > >
> > > > >The table is a 1-1/2" thick plate cut round 14-15" in dia
made
> > of steel. I
> > > > >have an arm stuck out one side to connect whatever to and the
> > whole thing
> > > > is
> > > > >resting on some bearings for movment (similar to a car front
> > axel).
> > > > >
> > > > >Thanks
> > > > >
> > > > >Stan
> > > > >
> > > > >
> > > > >
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