SparkFun Forums 

Where electronics enthusiasts find answers.

Questions relating to designing PCBs
User avatar
By Chupa
I make my own PCBs to save money when i can, and it being somewhat difficult or impossible to make double sided ones i stick with single sided. Some of my designs being complicated the auto router cant always be 100% successful. Is there a way to make the auto router bring air wires to a through hole pad on both sides of the connection so you can just solder on a jumper? If not i think that would be a pretty useful function for them to add in the future...
By daemondust
What about running the autorouter with the bottom layer disabled so it routes as much as possible on the top and then running it with both layers active?

You could then use the bottom layer as a guide for where to place jumpers.
User avatar
By Chupa
And just use the vias as through hole pads. great idea! thanks!
By daemondust

You might be able to tweak it further by changing the "layer costs" for the bottom layer in the "busses", "routes" and four "optimize" tabs of the autorouter. By doing that I was able to get down to just two traces on the bottom on one of my more complicated SMD designs.

I think it's going to be a lot of trial and error to find a sweet spot, but it shouldn't be hard to get passable results.
long long title how many chars? lets see 123 ok more? yes 60

We have created lots of YouTube videos just so you can achieve [...]

Another post test yes yes yes or no, maybe ni? :-/

The best flat phpBB theme around. Period. Fine craftmanship and [...]

Do you need a super MOD? Well here it is. chew on this

All you need is right here. Content tag, SEO, listing, Pizza and spaghetti [...]

Lasagna on me this time ok? I got plenty of cash

this should be fantastic. but what about links,images, bbcodes etc etc? [...]