[PCB_FORUM] Re: Metric database
- From: "Gene Carman" <gcarman@xxxxxxxxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Fri, 1 Apr 2005 14:42:05 -0800
yeah it will... when you go to gerber.
-----Original Message-----
From: Gary MacIndoe [mailto:gary.macindoe@xxxxxxx]
Sent: Friday, April 01, 2005 2:40 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Metric database
Thanks for the response Kevin. I'm about to do a trial output, I guess it
will let me know if the accuracy is set too low.
Gary E. MacIndoe
PCB Design Engineer
Advanced Micro Devices, Inc.
Longmont, Colorado
-> -----Original Message-----
-> From: Kevin McCowan [mailto:kmccowan@xxxxxxxxxxxxxx]
-> Sent: Friday, April 01, 2005 3:29 PM
-> To: icu-pcb-forum@xxxxxxxxxxxxx
-> Subject: [PCB_FORUM] Re: Metric database
->
->
-> Everything works.
-> Just set the units as you want to see them and
-> make sure that the accuracy is enough to match
-> whatever you choose for your gerber output.
-> I was going to do this several (maybe 10) years ago
-> when I worked for NASA but when I called the board
-> manufacturer they said "Sure, we can convert that."
-> I decided I didn't want them to "convert it" so I
-> never switched. It has never been a problem.
-> You should call your board house, though. It
-> never hurts to get their input.
->
-> Kevin McCowan
-> Sr. PCB Designer
-> TSI Telsys
->
-> Gary MacIndoe wrote:
-> > Ok, now for something completely different...
-> >
-> > Has anyone set up a design in metric, and sent it out to Fab? Some
-> > questions:
-> >
-> > - Did you set the "User Units" to Millimeter or Microns?
-> >
-> > - What did you set the "Accuracy" to? (maybe 3 for Millimeter, 0 for
-> > Microns?)
-> >
-> > - How about the Artwork Parameters, "Output units" can only be set to
-> > Inches or Millimeters?
-> >
-> > - Anything else about working and creating output in a Metric
-> database
-> > I should know about?
-> >
-> >
-> > I have started with the database set up in Microns in order to have
-> > whole number trace widths (75 and 100). If I switch to a Millimeter
-> > database, the trace widths become .075 and .100 (I guess I
-> could handle
-> > the less than whole numbers).
-> >
-> > Anybody have any suggestions about this?
-> >
-> > Thanks for any help!
-> >
-> > Gary E. MacIndoe
-> > PCB Design Engineer
-> > *A*dvanced *M*icro *D*evices, Inc.
-> > Longmont, Colorado
-> >
-> >
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