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Author Topic: Eagle - Double sided PCB - Vias on top but soldering on bottom  (Read 4230 times)
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nathanas
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« Reply #15 on: December 18, 2011, 08:31:08 pm »
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Is it safe to use the above route spacing settings or should I consider to increase it a bit more?
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« Reply #16 on: December 18, 2011, 09:03:09 pm »
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That's like 0.033", very very thin.
Change the grid view to inch, and make the traces at least 0.1".

0.127mm = 0.00127cm x 2.54"/cm =  0.0032"

Go with 0.16" or 0.2" for power traces.
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« Reply #17 on: January 18, 2012, 07:56:27 pm »
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Quote from: CrossRoads on December 18, 2011, 09:03:09 pm
Go with 0.16" or 0.2" for power traces.

CrossRoads, just laughed out loud... I use 0.15-0.16" for signal traces, and 0.24" minimum for power...  One of my boards features a +5V ring around the perimeter that is about 0.5" wide... keeps losses low! Probably overkill.
« Last Edit: January 19, 2012, 06:33:11 am by Constantin » Logged

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« Reply #18 on: January 18, 2012, 08:11:16 pm »
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Actually I think I was off by a factor or 10.
I design with 0.02" (20 mil) for power, and 0.01" (10mil) for signal traces.
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« Reply #19 on: January 18, 2012, 08:13:31 pm »
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Quote from: CrossRoads on January 18, 2012, 08:11:16 pm
Actually I think I was off by a factor or 10.
I design with 0.02" (20 mil) for power, and 0.01" (10mil) for signal traces.

Whoops, me too. 15-16mil and 24 mil respectively, it is.
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« Reply #20 on: January 18, 2012, 08:15:08 pm »
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Yeah, I do 24mil too when I have power going out to LEDs or something.
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17

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