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???
09/02/06 20:41
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#123585 - Single sided board?
Responding to: ???'s previous message
Hi Satish,

I'm guessing that you're laying out a single-sided board. If this is true, just route the unrouted net by hand. The trick you can then do is to route that trace as though it were on a two-sided board, using the extra layer to represent the jumpers. In Orcad, if memory serves, I believe you can switch between layers while routing a trace with the plus and minus keys on your numeric keypad, or maybe it was the page up and page down keys. You'll have to figure that out for yourself. It's been far too long since I used OrCad (and then it was under DOS).

The point is that you will end up with all of your routed traces on the one side of your board (the bottom), and what you will treat as jumpers on the other side (the top). Then just don't make the top layer, but solder jumpers in instead.

If you're careful about via clearances, you can still do this even if you have a two-layer board. Just add an extra layer for the jumpers, route them manually, and then just don't build them into the board. Once you learn how to manipulate the autorouting functions of your software, and the Gerber output too, you could actually do this automatically. But for the time being you will probably be more successful just doing it manually.

Good Luck,

Joe

List of 9 messages in thread
TopicAuthorDate
Jumper in orcad            01/01/70 00:00      
   guessing            01/01/70 00:00      
      or you could mean a pair of test points ...            01/01/70 00:00      
      Unrouted net            01/01/70 00:00      
         So you're actually using a wire jumper ...            01/01/70 00:00      
         Single sided board?            01/01/70 00:00      
            This might work, but there are some "gotcha's."            01/01/70 00:00      
               Single-sided only.            01/01/70 00:00      
         Jumper - how to            01/01/70 00:00      

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