Re: [CAD_CAM_EDM_DRO] Re: Machine construction.

Most of us don't plan on turning our workspace into a
mill, but by the looks of this link, we could.

http://www.scaled.com/services/cms_mill.html

Moving gantry benefits;

Good physical space to work area ratio. (the travels
can be very close to the physical machine dimensions.)

A know mass to move with the drives. The only real
variable is the tool weight.
Low cost to travels ratio.

The hang up is they are not rigid. (software can
compensate for this, but surface finishes, tool wear,
and rates of removal suffer)

In the larger dual drive gantry machines (and even
some overhead cranes) the skew of the gantry is
compensated for with software. Feedback from each
side is monitored and the side that is lagging gets
more force.

Rob



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