I have made 1/2 a plated thru hole ON the board edge... I don't believe
there is any restriction on hole to edge spacing but there are good design
practices that we all follow. That should not stifle a designers creativity
in solving packaging challenges. A non-plated hole is typically used for
tooling or mounting... Some boards break out the hole like a slot in the
corners...

I don't believe we are restricted in 'hole to edge' spacing by any specs,
plated or non-plated.


Bill Brooks
PCB Design Engineer , C.I.D., C.I.I.
Tel: (760)597-1500 Ext 3772 Fax: (760)597-1510

-----Original Message-----
From: Frank A Bergmeister [mailto:[log in to unmask]]
Sent: Friday, February 20, 2004 4:15 AM
To: [log in to unmask]
Subject: [DC] drill hole to board edge ...

Can anyone quote the spec for how close a nonplated thru hole can get to
the board edge.  I know the rule of thumb, but I need to see something in
writing.

Thanks

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