Re: EMC Continuous Contouring

I just tried a single 360 G02 arc move and it is smooth, and cut my 1
inch plate fine, but it tried to go around twice! I know there was an
EMC bug on this but I thought it was previous to the BDI version.

Andy

--- In CAD_CAM_EDM_DRO@y..., jguenther@v... wrote:
> Andy,
>
> If I remember correctly, the example I provided did not pause going
> completely around the circle. I will need to try it again, but best
I can
> remember it was smooth. I actually need to use this some time over
the
> weekend to turn the square top of my 7x12 compound slide into a 50mm
> diameter circle. The only way I have to do this is with my
Sherline mill
> and cnc control since the lathe isn't big enough to swing this part
mounted
> on a face plate. I will let you know how it works if I get a
chance to try
> it this weekend.
>
> John
>
> > -----Original Message-----
> > From: andy@o... [mailto:andy@o...]
> > Sent: Friday, August 03, 2001 3:41 PM
> > To: CAD_CAM_EDM_DRO@y...
> > Subject: [CAD_CAM_EDM_DRO] Re: EMC Continuous Contouring
> >
> >
> > John - Thanks, I agree a single 360° arc should be smooth, but I
am
> > concerned that an arbitrary program not pause at any point. Andy
> >
> > More info : A rectangle with filleted corners appears to go around
> > with no pauses, perhaps there is something wierd about starting an
> > arc after another arc, or 4 decimal places not enough for a smooth
> > transition. Andy
> >
> >
> > --- In CAD_CAM_EDM_DRO@y..., jguenther@v... wrote:
> > > Hi Andy,
> > >
> > > I have used the following command to machine a circle
> > >
> > > G03 x2.25 y 1.25 i-1.25 j0.00
> > >
> > > which machines the entire circle without stopping.
> > >
> > > To generate this code, I drew the circle in cad, exported to dxf
> > and used
> > > ACE to convert the dxf to g-code. There were some other
> > positioning lines
> > > in the resulting g-code file, but they were just positioning to
the
> > proper
> > > xy coordinates for the beginning of the circle. This worked
> > correctly in
> > > EMC.
> > >
> > > John Guenther
> > >
> > >
> > > > -----Original Message-----
> > > > From: andy@o... [mailto:andy@o...]
> > > > Sent: Friday, August 03, 2001 2:07 PM
> > > > To: CAD_CAM_EDM_DRO@y...
> > > > Subject: [CAD_CAM_EDM_DRO] EMC Continuous Contouring
> > > >
> > > >
> > > > Finally have the huge old electric eye burning machine at work
> > > > converted. ( BDI EMC, Gecko G340s, Dan Mauch's motors and
control
> > box)
> > > >
> > > > It moves - Yeah!
> > > >
> > > > Now I am trying to do some test circles and have a 4 quadrant
> > > > circular move program:
> > > >
> > > > G90 G64 G20 G40
> > > > N10 G01 X0.3686 Y1.1320 Z0.5000
> > > > N20 Z0.0000
> > > > N30 G03 X3.4236 Y4.1870 I0.0000 J3.0550
> > > > N40 X0.3686 Y7.2420 I-3.0550 J0.0000
> > > > N50 X-2.6864 Y4.1870 I0.0000 J-3.0550
> > > > N60 X0.3686 Y1.1320 I3.0550 J0.0000
> > > > N70 G00 Z0.5000
> > > > M05
> > > > %
> > > >
> > > > This program pauses at the end of each quadrant, which is no
good
> > for
> > > > a flame cutting machine. I have G64 turned on for continuous
> > cutting
> > > > mode.
> > > >
> > > > Any clue as to why it is pausing?
> > > >
> > > > Andy
> > > >
> > > >
> > > > Addresses:
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> > > > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > > >
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> > > > bill,
> > > > List Manager
> > > >
> > > >
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> >
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