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November 2010

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Subject:
From:
Dave Connitt <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Wed, 10 Nov 2010 16:33:23 -0500
Content-Type:
text/plain
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text/plain (136 lines)
Amol,
There is another CAD program called CADint that will allow you to
construct a PWB design from by importing the gerber layers and
associating them to whatever "CAD" layer they are. Then, using the
schematic to annotate the parts into the board, you place and route over
the top of the "Gerber" layer. When you are done, you delete the gerber
layer and you have a CAD file.
Dave Connitt


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of McGlaughlin, Jeffrey
A
Sent: Wednesday, November 10, 2010 11:51 AM
To: [log in to unmask]
Subject: Re: [TN] Gerber and CAD

Amol -

In answer to number 4) Yes, it can be done. If you have the schematic
and parts list, DownStream Technologies CAM350 is capable of turning the
Gerber data into a CAD data base. The process is not simple and unless
the need is pressing I don't recommend doing it, but being able to work
backwards from the Gerber data to recover "lost" databases has saved me
a couple of times.

Jeffrey A McGlaughlin, CID 
Engineering Designer 
Battelle
Systems Development Engineering Services
505 King Ave 
Columbus Ohio 43201-2693 
Phone (614)424-7582 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Amol Kane
Sent: Wednesday, November 10, 2010 11:12 AM
To: [log in to unmask]
Subject: [TN] Gerber and CAD


Dear Technetters,
Hopefully this e-mail with get people going on technet again.

Some brief background before I ask questions. We use Aegis to write our
process instructions and machine programs and it is infinitely easy
working with CAD files (not to be confused with Autocad drawings) as
compared to digitizing Gerber files. CAD files have to contain the Part
Number, Package Information, Component Reference ID and location
coordinates, along with the board outline. Gerbers are used for ordering
wave pallets, stencils etc. So,


1.       How many people specifically ask customers to provide CAD files
along with Gerber.

2.       What is involved in generation of CAD files (any special
software, extra steps etc)

3.       Are any of the board houses capable of providing CAD files if
the customer only gives gerber files

4.       What software can one use to generate CAD files if I have
Gerber

Jack,
How come there was no mention of Tesla in your electricity piece? Very
hilarious by the way!


Thanks!
Amol



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