Re: Deskncrt

It can move at 12 inchs a sec ! I'm milling 2 lbs density tooling foam
for molds. Thanks for the reply.

--- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:
> >
> > --- In CAD_CAM_EDM_DRO@y..., shymu@b... wrote:
> > > I bought Cncpro for the constant contouring feature. However I'm
> > > having trouble getting it to work properly. I had played with
> > > Deskncrt in the past and loved the smoothness, but couldn't keep
it
> > > from overshooting the tool path. I'm running at 2000 steps per
in.
> > > Max speed is 10 inchs a sec. Using servo's with encoder feedback
to
> > > hardware (Gecko G320). If using Deskncrt in an open loop mode
why
> > > would the PID need to be tuned. Can someone help with some basic
> > info
> > > for setting up Deskncrt to get me started in the right
direction?
>
> if it is overshooting, then either the max velocity or the
acceleration is
> set
> too high. I don't know DeskNcrt, but I do know EMC. There must be
a
> setup file, and it should have a line for max_velocity and/or
> default_velocity,
> and max_acceleration and default_acceleration. Check what those
values
> are set to. They probably are in inches/second and in/sec^2. If
you set
> the accel parameters higher than the servo amp/motor/power supply
> combination can provide, then the computer will get ahead of the
physical
> hardware, causing the exact problem you describe.
>
> Umm, 10"/sec is 600 IPM. Can your machine really move that fast?
>
> Jon