RE: [CAD_CAM_EDM_DRO] Air assist on Series II knee?

Wife's away so I went out to play. Got an air line installed to replace the
rotted hose. Hooked it up to the compressor and started playing with the
pressure. Had the knee sitting about 1/2 way up with a wood block under it
so I could work on putting the line in. Started cranking on the regulator
and took it all the way to the 120 psi that my little compressor is capable
of (Be putting a 6-1/2 hp unit in this week to replace this little 2 hp
job). Nothing obvious happened. I then turned on the stepper driver and
lifted the table off the block then switched off the driver. The table
stayed in place. I then started reducing the pressure and at just under 40
psi the table started to sink. So it appears that Bridgett's air assist is
working fine. I looked underneath and I still don't see how it works, but
know that it does work.

Anyone know how you tell the proper pressure to run on one of these? It
seems that anything from 40 - 120 psi will hold the table in place.

Tim
[Denver, CO]

Back to real chores :-(

> Hello Tim
> I suggest there is a air or hydraulic cilinder driven by a air converter
> to counterbalance the weight of the knee.
> This is the feature you find in many machines to ease work and
> the z motor. You adjust the presure to the point that the knee is
> free floting.
> Good Luck
> Sven Peter
> >
> > FAQ: http://www.ktmarketing.com/faq.html