Re: gEDA-user: ground planes and thermals

[bumpelo@xxxxxxxxxxx]

> yep plastic pins.  should be no problem.

Not necessarily. If an unplated hole pierces copper on two layers that copper may become shorted even if you only put plastic in the hole.

Many manufacturers don't like to do unplated holes and will charge a lot extra for them. Often its cheaper and easier to make them plated holes and just have clearances.


  thanks so much for the info
> guys.  im doing a dry placement run on paper, then gerber to gcode,
> then milling this afternoon hopefully!!!!
> 
> overwhelmed with excitement
> handsome greg
> http://www.lipstick-killers.com
> 
> On Apr 1, 2005 2:19 PM, Mark Rages <markrages@xxxxxxxxx> wrote:
> > On Apr 1, 2005 2:16 PM, DJ Delorie <dj@xxxxxxxxxxx> wrote:
> > >
> > > > nope.  nothing with both of those flags.  you know what though?  i
> > > > think it is just because i have some alignment holes for some jacks
> > > > i have that are unplated holes with no pad.
> > >
> > > The warning is to make sure you don't accidentally short your power
> > > plane to a metal mounting screw or something.  Making it a plated hole
> > > will ensure that sufficient clearance is added to prevent that.
> > >
> > 
> > If his jack is like the ones I've used, the alignment pins are
> > plastic.  I just ignored the warning and the board worked fine.
> > 
> > Regards,
> > Mark
> > markrages@xxxxxxxxx
> > 
> > --
> > You think that it is a secret, but it never has been one.
> >   - fortune cookie
> >