Re: [CAD_CAM_EDM_DRO] Filter or converter for converting short lines to arcs

Hi Jeff:
Check to make sure your IGES import has actually brought arcs in.
IGES will often bring geometry in as splines, even when it was originally
constructed from arcs.
I had this experience bringing Solidworks files into Mastercam.
Now that I bring them in as Parasolid files, the arcs come in as arcs!!!
If you are stuck with IGES, and if you are getting splines in rather than
arcs, you need to reconstruct the arcs by dropping 3 points on the spline
and fitting an arc through them.
Make sure the arc still chains with the rest of the geometry (you might have
to dump or hide the splines to do so.)
Hope this helps.
Cheers

Marcus

----- Original Message -----
From: Jeff Lionberger <jjlionberger@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, June 26, 2003 3:15 PM
Subject: [CAD_CAM_EDM_DRO] Filter or converter for converting short lines to
arcs


> I am currently using surfcam and when post processing it never generates
G02
> code for circles or arcs. Does anyone know of a program that will analyze
> the gcode files and convert the maybe 100's of lines for one circle into
one
> G02 command? Or, is anyone familiar with surfcam to have a solution? The
> files are brought in as an iges and then processed and I end up with
> programs with 1000's of lines of code.
>
> Thanks,
> Jeff Lionberger
>