Quote:
Originally Posted by billbo911
The pressure regulators are "relieving" regulators. That means that the low pressure side will be bled out if the pressure in that side exceeds the regulated setting.
So, use a piston to add a constant force lifting the arm. Set the regulator to the amount of force needed to balance the arm. The motor will then only be lifting the weight of the object being lifted or lowered.
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This will work well, but remember that the orifice of the relieving regulator is very small. Probably on the order of .010" effective orifice size, maybe smaller. This means that while it will bleed out excess pressure, it will do so reletively (sp?) slowly.
But please take into account that each year, the GDC has to come up with a rule book that will spend the next three months being picked apart by 40,000 of the brightest, most creative minds on the planet. I think they do an outstanding job of it. - dtengineering [more] 
16-01-2009, 10:21
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