Re: Circuit Board Layout Program

Hi Mariss,

I'm able to read the Gerber file and plot it on the screen with my code
(Gcode viewer), after I get CRLF's added after the *'s (browser must
have added a few CRLF's of it's own). These "numbers" seem to be the
correct size. I wonder if Ian had METRIC numbers (they looked too big
on my program)?

Seems to be two lines on the bottom edge, and the "trace" starts out
with a aperture! Thanks for the file! I can't yet read the header,
although I can manually decipher the aperture data. I used my 1/1000
scale "feature", and most all of it then reads as Gcode. I'm currently
generating Vector PLC data from what I parse; I let Vector generate the
Gcode (although at that point, it's simple enough)! Plans are to later
generate the Gcode myself. But it IS nice to be able to examine it in
Vector CAD/CAM now.

The Gerber data is of course "center line" data, which assumes a
photographic aperture, the real work in my program is generating
"traces" of the appropriate size to these apertures (outline traces).

Alan KM6VV


mariss92705 wrote:

>
> Alan,
>
> This is a gerber file of a 0.9" circle inscribed in a 0.9" square
> whose lower left-hand corner was placed at the x,y origin (x=0, y=0).
> Most of the code must be for the circle line segments. The numerical
> data is xxx.xxxx leading zeroes and decimal point not shown. Seems it
> should be possible to turn it into G-Code.
>
> Mariss
>
> G04 AutoGERB for AutoCAD 14/2000*
> G04 RS274-X Output *
> %FSLAX34Y34*%
> %MOIN*%
> %ADD12C,0.005000*%
> %ADD13C,0.007000*%
> G54D12*X10000Y5000D02*X9988Y5348D01*X9952Y5694*X9891Y6036*X9807Y6374*X
> 9700Y6705*X9570Y7028*X9418Y7341*X9245Y7642*X9051Y7931*X8837Y8206*X8605
> Y8465*X8355Y8707*X8089Y8932*X7808Y9137*X7514Y9322*X7207Y9486*X6890Y962
> 9*X6563Y9749*X6229Y9847*X5889Y9920*X5545Y9970*X5198Y9996*X4850Y9998*X4
> 503Y9975*X4158Y9929*X3817Y9858*X3482Y9764*X3155Y9647*X2836Y9507*X2528Y
> 9346*X2231Y9164*X1949Y8961*X1681Y8739*X1429Y8499*X1194Y8242*X978Y7970*
> X781Y7683*X604Y7383*X449Y7072*X316Y6750*X206Y6420*X119Y6083*X55Y5741*X
> 16Y5396*X0Y5048*X9Y4700*X42Y4354*X99Y4011*X180Y3672*X284Y3340*X410Y301
> 6*X560Y2702*X730Y2398*X921Y2108*X1132Y1831*X1362Y1570*X1609Y1325*X1873
> Y1098*X2152Y890*X2445Y702*X2750Y535*X3066Y389*X3391Y266*X3724Y165*X406
> 4Y88*X4407Y35*X4754Y6*X5102Y1*X5449Y20*X5795Y64*X6136Y131*X6472Y222*X6
> 801Y335*X7121Y472*X7430Y630*X7728Y810*X8013Y1010*X8283Y1229*X8538Y1467
> *X8775Y1721*X8994Y1992*X9193Y2277*X9373Y2575*X9531Y2885*X9667Y3205*X97
> 80Y3534*X9871Y3870*X9937Y4211*X9980Y4557*X10000Y5000*G54D12*X0Y0D02*X1
> 0000Y0D01*X10000Y10000*X0Y10000*X0Y0*M02*
>
> --- In CAD_CAM_EDM_DRO@y..., Alan Marconett KM6VV <KM6VV@a...> wrote:
> > Hi Brian,
> >
> > Yes, I ran it through my "viewer" code, and The numbers were STILL
> too
> > big! I divide the integers by 10000.0, for 4.2 gerber.
> Which "Gerber"
> > is this? 6.n? There should be an aperture file (.WHL?) to use with
> this
> > code. RS274X has a header with aperture info, RS274D does not.
> >
> > Alan KM6VV
>
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