adding PCB mounting holes in Eagle

[rjm]

dumb question but...

How do you add 3mm mounting holes to the layout diagram? I seem to be limited to wire pads of much smaller dimensions.

TIA

-R

 

[sek]

Hi,

there's a library 'holes' that contains many different diameters, both with and without a copper ring (that can be connected to any signal).

Sebastian.

 

[rjm]

Thanks.

One more question:

For single sided boards it is desirable to have a large pad size, say 70mils for through-hole components, right?

The resistors in Eagle all seem to have small pads, maybe 50 mils or so. Fine for double sided, I suppose, but a bit dicey for single sided with no plating on the through hole.

Does anybody worry about this? Is the only solution editing the component libraries?

-R

 

[johnf]

Your concerns are well founded. The older Eagle libraries had larger through-hole component pads that are more suitable for single-sided boards or hand soldering.

 

[mik]

Here you have standard elements library with bigger pads for version 4.X
http://users.teol.net/~baltazar/download/1a.zip

 

[rjm]

1a.lbr library includes some capacitors which are a better substitute than the stock Eagle library, but unfortunately no resistors over 7.5mm lead spacing are to be found.

I'll try editing the libraries myself, then.

Richard