Re: Lead screws - made more accurate

We don't all need ground

> ballscrew driven carriages with air bearings on polished granite

ways

> and closed-loop control monitored by three laser interferometers

per

> axis.

I think that by limiting yoruself to only 3 interferometers per axis
adds too much uncertanty. what if you are standing too close to one
and your body heat throws off the internals ?

for that matter, what if your air conditioning supply diffuser is
blowing one one part of one of the ways.

you would need an interometer on each side of each rail on an axis,
just to get started !

ha, imagine only using three.. talk about trying to get away for
cheap!


Dave
(just kidding)