controlling hydraulics with Mach 2

Anyone out there ever control hydraulics with Mach 2
or other CNC PC based controller?

I have a proportional hydraulic valve that uses 12 VDC
and varies fluid with current (.6-1.2 amps) as well as
an on off valve that uses 12 VDC to power the solenoid
for each direction.

I also have a linear encoder attached to the carraige
of each slide and have gotten both encoders to work
with the Mach 2 demo. My question is about converting
the output used for a servo/stepper motor to making it
useful for turning on and off the hydrualic
cylinders...

...is modifying a servo amplifier a possibilty? Any
ideas would be helpful!

Thanks,
Todd W




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