[TheForge] Hydraulic Press Control

Sun Feb 3 12:45:00 2002

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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