Re: Optimizing cutting paths - The proof

Hi John,

I tried the files below, my Vector CAD/CAM 9 didn't like the DXF OR the
CCD. The DXF was ignored outright, and the CCD came through skewed in
about 3 bands. OK, maybe a .ZIP would guarantee accurate delivery! I
was able to read the first loco DXF into FlashCut, correctly, and export
it as a Gcode. Just what I understand is the usual problem with DXF's,
interpretation of arcs, I'm told.

I did get the wheel in to Vector, and I simply replaced the arcs I
didn't like. the CCD was obviously corrupt. I would like to
understand the file exchange problems!

Alan KM6VV


machines@... wrote:

>
> --- In CAD_CAM_EDM_DRO@y..., Alan Marconett KM6VV <KM6VV@a...> wrote:
> > Hi Chris,
> >
> > Yeah, love 'em. I was able to get the Gcode from FlashCut into
> Vector
> > CAD/CAM, AFTER I removed some spaces between the X, Y, I, J's, and
> the
> > value. I keep forgetting that Vector doesn't like that. Not hard
> with
> > a text editor. The arc statements were mostly fine.
> >
> > Can anyone get ACE to convert it? I haven't opened up the DXF file
> in a
> > text editor to see what's inside.
> >
> > I don't think a Zip would help... Or is there something I'm missing
> > here? I think John's vers. of AutoCad or whatever just likes
> different
> > ENTITIES then what either Vector or ACE like. Don't ask me what,..
> yet!
> >
> > I DID read in FlashCut's Gcode, and then play with it in Vector. I
> got
> > three arcs to do the inside end of some of the segment cutouts. The
> > tiny one in the middle drove a piece of code I'm working on crazy!
> And
> > vector says the arc center of this tiny arc is the CENTER of the
> WHEEL!
> > It "flips" the other way, to connect up the two quarter arcs that
> make
> > up the little end of the segment on some of the segments (I didn't
> go
> > through them all). A little quick work with Vector and I used the
> tiny
> > arc as a point, removed the two quarter-arcs, and replaced them
> with a
> > nice half arc. Then made appropriate copies.
> >
> > Alan KM6VV
> > (still learning)
>
> Alan,
> I thinl the problem in is the file transfer as I can open it in
> Vector, Intellicad and Bobcad. I don't have any more programs.
> I've posted two more files on the web site. One is a dxf from the
> program that drew it
> http://homepage.ntlworld.com/machines/loco wheel.dxf
> The other file is the original dxf brought into vector and saved as
> a .ccd file
> http://homepage.ntlworld.com/machines/locowh.ccd
> Incidently this file is in metric and the OD is around 130mm just for
> referance
>
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