Re: Speaking of tangents, etc....

Hello,

At Westec,there were a few CAD companies touting their abilities in
this area of machine control. They were not inexpensive packages...

While a simple kinematics change (in the controller, or the CAD)
should make it possible for the machine/control to work on the "side"
of the ballmill; there is still the problem of this new "tilt" of the
cutter interfering with some other part of the surface. In other
words, the degree or direction of the "tilt" as it relates to the
surface may need to change to prevent gouging. The model of the
machine AND its interaction with the part surfaces needs to be
considered and compensated. This is far from trivial, IMO.

Hope this helps,

Ballendo

--- In CAD_CAM_EDM_DRO@y..., "doug98105" <dougrasmussen@c...> wrote:
> Dave & others,
>
> I don't know all the details of this situation, but I have to
assume
> it's far more complicated than could be done in 4 hours. They do
> have a full time computer guy on staff and the fact that Mastercam
> could not supply a post to do the job should tell you something.
>
> The machine is a couple of years old with a state-of-the-art Fanuc
> control.
>
> I suspect their problem has to do with wanting to contour at very
> high feedrates, maybe in the 500 to 1000 ipm range. Even with a
> 15,000rpm spindle, at those kind of feedrates the cutter
orientation
> has to be optimal to get good surface finish.
>
> Doug
>
> --- In CAD_CAM_EDM_DRO@y..., "follicely_challenged"
> <dave_pearson@b...> wrote:
> > I've just finished writing a post processor for a 5 axis machine
> for
> > the Dolphin Partmaster system. The customer isn't doing five axis
> > surface machining, just doing 2/2.5D machining on five different
> > faces of a cube fixture.
> > It took me about four hours, let me see........that works out at
> > about $3750.00 per hour (I wish).
> >
> > Dave Pearson
> >
> > --- In CAD_CAM_EDM_DRO@y..., "art" <fenerty@h...> wrote:
> > > to handle
> > > > the head movement. The cost of the post was estimated to be
> > > > $15K!!!! Fairly complicated stuff.
> > > >
> > >
> > >
> > > Wow...I'm in the wrong end of the software business...
> > >
> > > Art
> > > Master5 Software
> > > http://users.andara.com/~fenerty/master.htm