Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [Homebrew_PCBs] double sided boards and through plating

From: Harvey White <madyn@...>
Date: 2008-10-17

On Thu, 16 Oct 2008 14:39:35 -0700, you wrote:

>Most pcb programs assume holes are through plated which isn't the case
>when I make my own double sided board. Do you guys usually solder
>both the top and bottom of a pin that's through plated?

No. Some items (IC sockets) cannot be treated that way. Some items
are designed to be soldered on one side only (resistor networks).

I use separate VIAS, and do not allow a wire to terminate at a
component pad for any layer other than the bottom.
>
>If anyone is using Eagle, in the Single Sided demo, whenever I
>autoroute it, it knows to generate wire bridges for the top layer.
>
>I use the same CTL file but whenever I generate my own board, it seems
>to assume plated through holes.
>
>I checked the DRC and they seem to be the same.
>
>How do I get Eagle to treat the board like in Single Sided demo and
>not plated through holes? Thanks.

Other than copying the rules over, that's all I know.

Harvey

>Henry