Re: NEWBIE WITH PLASMA/ROUTER ??'s

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Jay" <jayelvington@s...>
wrote:

> wouldnt arc legths affect by incorrect feedrates also cause change

in

> voltages?

Not as much as you might think. I found there is a relatively narrow
range of voltage once the cut is started and varying the speed and
gap cases just a few volts of varience. I found on my machine
the "sweet spot" was about 75 to 80 volts. I was forced to tighten
the "window" of my circuit to about 3% from the 10% I started with to
get effective tracking. The feedrates have to be a magnitude faster
or slower to see a major effect in voltage. You can actually see the
variance in the direction the torch is cutting and the THC will
adjust when the cut is more Y than X or vis versa. I found for some
reason the torch works better making clockwise (left to right) cuts
than the opposite...go figure. You definitely want to use a
controller software that supports continuous contouring and smoothes
out the movements.