Re: gEDA-user: Solder Jumpers

[Kai-Martin Knaak <kmk@xxxxxxxxxxxxxxx>]

On Tue, 25 Mar 2008 18:07:19 -0400, John Luciani wrote:

> I am looking for the dimensions of the pads and gaps or some
> recommendations.

You might look at JMP_SMD.fp in my section of gedasymbols. These jumpers 
have been proven to work with my last couple of boards. The gap is narrow 
enough to be bridged. Yet, it is wide enough to easily yield two separate 
solder pads. I deliberately combined a rounded and a rectangular pad, to 
get rid of the corners at the far end. This allows for a more roundish 
drop of solder and makes it easier to bridge the gap.

Unfortunately I haven't done a three terminal jumper yet.

 
> I was thinking of making 20x50 mil rectangular pads with 10 mil gaps.

The gap is ok. But narrow pads would make it more difficult to open the 
jumper without a solder pump.

---<(kaimartin>)---
-- 
Kai-Martin Knaak
http://lilalaser.de/blog



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