Hi,
I was wondering how do you restrict the autorouting for certain components so that it only routes the bottom layer for these while using both layers for the rest. I ask this because some components are very hard to solder from the top (example : PDIP socket), and thus should only be routed from the bottom, but the board is a double layer board.
Any suggestions? I’m stumped, could not google this issue.
The board will presumably have through-hole plating, so it doesn’t matter which side is routed for parts like DILs.
With the PCB software I use, I can prevent routing on a particular layer for a part by using a keep-out area on that layer, around the part.
I see. Any idea how to do that in Eagle?
You don’t need it, as I said.
Im gonna print this and etch it with acid myself using standard UV boards, so its not gonna have through hole plating. This is just a hobby project.
The DIL8 socket cannot be soldered from the top, the plastic cover blocks the way. But there are tracks on the top layer everytime I use autoroute. Im not hardworking/smart enough to manually route, and I need the board to be small.
Any suggestions?
If Eagle doesn’t have keep-out you could edit the part so that it only has pads on the bottom layer. Or, connect vias to each pin.
The Eagle autorouter isn’t very good, you’d be much better off routing the board manually.
Hmm… ok will do that. Thanks.
In reference to the autorouter the eagle manual indicates:
"Objects in the layers tRestrict, bRestrict, and vRestrict are treated as restricted areas for the Top and Bottom
side and for vias respectively."