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'Off topic - gerber files'
1997\07\12@172832 by Mike

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Hi yah all,

Sorry for the off topic - so ignore as you feel inclined...

Anyone have experience with having photoplots scanned to produce gerber
files ?

And any software for PC's to do this ?

Rgds

Mike
Perth, Western Australia

1997\07\12@183708 by Stephen Douglas

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Hi Mike,
A scanned photoplot can easily be converted to a DXF file which can
be converted to GBR format with ease.

--snip--
> Anyone have experience with having photoplots scanned to produce gerber
> files ?

1997\07\13@181047 by gary skinner

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> Anyone have experience with having photoplots scanned to produce gerber
> files ?

Supposedly CIRCAD has this ability.  I saw a demo of it, but you
never know if it is really that easy.
Gary Skinner   spam_OUTgskinnerTakeThisOuTspamcsd.net
Electronic Solutions, Inc.
design of custom electronic controls

1997\07\17@053917 by Janusz J. Mlodzianowski

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Talking about gerber files. I have the following problem/requirement:
I have a digitally controlled micromilling rig, so I can try to use it
for pcb prototypeing. In order to make a pcb I would need to cut an outline
of the track. It would be nice to have a utility that would be able to convert
tracks and pads from gerber file  to its equivalent outline drawing.
With a single track such a conversion is not a problem at all. One has to draw
4 lines. The problem starts when one track is connected to the other or is
composed of a number of segments. The outline can not produce a broken layer
of copper.
I am trying to think of an algorithm that could detect such track crossing
points. Checking every point of a track with all other tracks requires monstrous
number of comparisons.
Are there any ready made utilities, perhaps in public domain, available?
Any suggestions for an efficient algorithm?
Ragards,
janusz.

1997\07\17@062902 by Kieran Sullivan

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Copper fill the entire board, then produce a gerber plot of the inverse image of
the board...That should work?

Kieran


----------
From:   Janusz J. Mlodzianowski[SMTP:.....fizjmKILLspamspam@spam@UNIV.GDA.PL]
Sent:   17 July 1997 12:31
To:     PICLISTspamKILLspamMITVMA.MIT.EDU
Subject:        Re: Off topic - gerber files

Talking about gerber files. I have the following problem/requirement:
I have a digitally controlled micromilling rig, so I can try to use it
for pcb prototypeing. In order to make a pcb I would need to cut an outline
of the track. It would be nice to have a utility that would be able to convert
tracks and pads from gerber file  to its equivalent outline drawing.
With a single track such a conversion is not a problem at all. One has to draw
4 lines. The problem starts when one track is connected to the other or is
composed of a number of segments. The outline can not produce a broken layer
of copper.
I am trying to think of an algorithm that could detect such track crossing
points. Checking every point of a track with all other tracks requires monstrous
number of comparisons.
Are there any ready made utilities, perhaps in public domain, available?
Any suggestions for an efficient algorithm?
Ragards,
janusz.

1997\07\17@182956 by Steve Smith

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Try using the DXF out for the coppers as outline only this works fine from
araidnie and we import these into Autocad with no problems.

Steve.....

1997\07\17@234629 by Brian Kraut

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I have recently been researching CNC control programs and have found some
good links from http://www.sherline.com.  There are some that work with DXF and HPGL
files.

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