Pages: 1 [2]   Go Down
Author Topic: Eagle - Double sided PCB - Vias on top but soldering on bottom  (Read 9014 times)
0 Members and 1 Guest are viewing this topic.
0
Offline Offline
Full Member
***
Karma: 1
Posts: 179
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Is it safe to use the above route spacing settings or should I consider to increase it a bit more?
Logged

Global Moderator
Boston area, metrowest
Offline Offline
Brattain Member
*****
Karma: 548
Posts: 27372
Author of "Arduino for Teens". Available for Design & Build services. Now with Unlimited Eagle board sizes!
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

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.
Logged

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.
Arduino for Teens available at Amazon.com.

Peoples Republic of Cantabrigia
Offline Offline
God Member
*****
Karma: 6
Posts: 722
Arduino happiness
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

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

Global Moderator
Boston area, metrowest
Offline Offline
Brattain Member
*****
Karma: 548
Posts: 27372
Author of "Arduino for Teens". Available for Design & Build services. Now with Unlimited Eagle board sizes!
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

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.
Logged

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.
Arduino for Teens available at Amazon.com.

Peoples Republic of Cantabrigia
Offline Offline
God Member
*****
Karma: 6
Posts: 722
Arduino happiness
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

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.
Logged

Global Moderator
Boston area, metrowest
Offline Offline
Brattain Member
*****
Karma: 548
Posts: 27372
Author of "Arduino for Teens". Available for Design & Build services. Now with Unlimited Eagle board sizes!
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Yeah, I do 24mil too when I have power going out to LEDs or something.
Logged

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.
Arduino for Teens available at Amazon.com.

Pages: 1 [2]   Go Up
Jump to: