[TheForge] Hydraulic Press Control

Tue Feb 12 07:36:25 2002

I can't seem to stir Roger up.  Does anyone know what he's talking about in 
Bemidji at the end of April?  It's not on UMBA website that I can see.
Thanks,

Ed

At 11:39 AM 2/3/02 -0600, you wrote:
>Keith got all his stuff from a surplus yard
>Are you going to Bemidji the end of April
>You are from MN right
>The bottom of the stroke was controlled by a limit switch he could adjust
>just like the up stroke limit switch
>----- Original Message -----
>From: "Ed Fasula" <[email protected]>
>To: <[email protected]>
>Sent: Sunday, February 03, 2002 11:01 AM
>Subject: [TheForge] Hydraulic Press Control
>
>
> > We had a thread going here about building a hydraulic press.  I'm getting
> > materials together to build it, but I also want to use electronic
> > controls.  In the UMBA tape mentioned Keith Johnson demonstrates an
> > automatic control setup to repeatedly stroke the cylinder.
> >
> > To set the force, I think Keith used an adjustable pressure relief
> > valve.  He didn't detail how he controlled the repeat cycle.  I would
>guess
> > that he had a flow sensor on the relief valve outlet which worked with a
> > solenoid valve and an adjustable timer.
> >
> > I was thinking that the same could be achieved with a pressure sensor
> > replacing the relief valve and flow sensor.
> >
> > Also, I don't know why he doesn't use an electric switch to control his
> > solenoid valve when in manual mode instead of the mechanical valver.
> >
> > Has anyone got advice on how to do this and where to get the stuff?  I
>have
> > a spring center open solenoid valve already.
> >
> > Thanks,
> > Ed
> >
> >
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