Re: gEDA-user: How to do PCB Autorouting with non-plated holes

[Colin D Bennett <colin@xxxxxxxxxxx>]

On Wed, 24 Aug 2011 16:33:05 -0400 (EDT)
Cory Papenfuss <papenfuss@xxxxxxxxxxxxxxxx> wrote:

>  	Thanks for all the suggestions.  I've played with it a bit
> and come up with an example for a 200mil radial capacitor below:
> 
> Element["" "" "C0" "" 97000 208000 8000 -28000 0 100 ""]
> (
>          Pin[0 0 0 3000 6600 3000 "" "1" "hole,square"]
>          Pin[20000 0 0 3000 6600 3000 "" "2" "hole"]
>          Pad[0 0 100 0 6000 3000 9000 "" "1" "onsolder,square"]
>          Pad[20000 0 20100 0 6000 3000 9000 "" "2" "onsolder,edge2"]
>          ElementArc [10000 0 20000 20000 0 360 1000]
> 
>          )
> 
>  	I have never had to muck with footprints manually, so it's a
> bit of a learning curve for me.  The footprint Colin provided doesn't
> have a solder mask that's quite right (Resistor_TH_FarPads.fp).  It
> appears that in order to fix is, I had to add the "square" flag to
> the Pin as well as to the Pad.

At first glance, it may look like the solder mask is wrong, but in fact
if you hit Tab to view from the back side of the board and enable
solder mask view, you will see it is correct.

Alternatively, look at the front side of the board and disable the
âfar sideâ layer.  Enable the solder mask layer.  Observe that the
solder mask on the top layer actually has a round hole for the pin.

The solder mask on the front side of the board has a round opening, to
leave space around the hole.  The solder mask on the back side has a
square hole for pin 1's âPadâ.  Viewing the board from the front
doesn't show the difference by default.

Regards,
Colin


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