I read something about nurbs implementation in emc, i need to catch up with
that!


2010/5/5 Dave <e...@dc9.tzo.com>

> Just a thought, but you might be able to use the Nurbs function to do
> the cam profile creation for you also.
>
> I think it is G5.2 or something similar.  There is a butterfly demo
> program in the sample code that utilizes that.
>
> Dave
>
>
> On 5/5/2010 5:35 PM, Leonardo Marsaglia wrote:
> > Thank you guys for your answers, you were very helpful..
> >
> > I will explain what i decided to do... the idea is to make the X axis of
> the
> > lathe to be a mill and the  spindle will be turned with a servo motor
> > reduced several times to increase torque (probably with a worm and gear
> to
> > make impossible the spindle to move ), i don't really need high rpm... i
> > think that maybe the maximum rpm would be 100 or 150, because there is no
> > need to make it turn faster.
> >
> > So, the idea is to use 2 servo motors, one for the spindle and another
> for
> > the X axis, (Z axis could be a stepper, it's not critical) and yes it
> will
> > be used for making the roughing process of the camshaft.
> >
> > The shape of the lobes, well.. we have data for some models.. others we
> have
> > to find out how the profile is, but the idea is to model the lobe in
> > solidworks for example and then use the postprocesor to make the g-code
> for
> > emc2.
> >
> > I have a lot of doubts about this because we have only used emc for
> > positioning and I/O in our grinders, and these ones have masters for
> making
> > the lobes.
> >
> > But i think that i would use it as a milling machine, it's easier and
> fast
> > for production.. so the idea is begin with the tests in the next weeks.
> >
> > I hope someday we can afford a cnc landis :( haha..
> >
> > Thank you very much to all of you, and if you have more ideas or anything
> i
> > would like to talk about it.. if i made improvements i will tell you!
> >
> > Best regards.
> >
> > Leonardo.
> >
> > 2010/5/5 Steve Blackmore<st...@pilotltd.net>
> >
> >
> >> On Wed, 5 May 2010 14:27:04 -0300, you wrote:
> >>
> >>
> >>> Yes i think stuart is right, sometime ago in a similar discussion
> someone
> >>> told me the same, the there are two different motors for turning or
> >>>
> >> milling.
> >>
> >> > From memory, the Integrex only have two motors, a 15, 30 or 40HP
> >> spindle, depending on the model, and a 7 or 10HP for the milling axis.
> >> The spindle is essentially just a big geared servo, it can position
> >> accurately and hold just like any other servo - The large torque is
> >> paramount to hold against the machining forces, unfortunately the
> >> penalty for success is the large price.
> >>
> >> Steve Blackmore
> >> --
> >>
> >>
> >>
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