Dennis, For slots with oval shape I place two holes with DIA as big as the slot is. For rectangular slots I place small holes (1mm or 2mm)at the four ends with DIA, which they'll eventually use. In both cases I place a drawing of the slot size with dimensions on the same page with the drill symbols. Close to the drawing I place a note if the slot is plated and how many times it appears on the board.
I've never had problems with the PCB manufacturers. Mira --- Dennis Saputelli <[EMAIL PROTECTED]> wrote: > I did that (1 mil holes) > > yeah it forced a phone call but they were sort of > upset that i really > wanted 1 mil holes and they couldn't do them > > after i explained (language issues here as well) > they still couldn't > understand why i put a 1 mil drill in the tooling if > i wanted a slot > > i've had more trouble over these slots than i would > care to admit and i > have tried about every method i have ever seen > mentioned > > esp if the slot is *almost* a round and there are a > lot of them close > together > > nowadays we only do them when they are really a > must_have feature > > they just burn too much time on either the front end > or the back end > > there really ought to be a better way > > ds > > _______________________________________________________________________ > Integrated Controls, Inc. Tel: > 415-647-0480 EXT 107 > 2851 21st Street Fax: > 415-647-3003 > San Francisco, CA 94110 > www.integratedcontrolsinc.com > > > Peter Bennett wrote: > > Erik Reikes wrote: > > > >> I have a snap in 120VAC "blade" that goes in as > part of a footprint. The > >> hole it needs is basically rectangular. > >> > >> How would one create a pad with a rectangular > "hole" in the center? > >> > >> I know the manufacturer will rout it out with a > special bit, but what > >> layer > >> do I spec that on the Gerbers? Drill drawing? > Drill guide? Mechanical? > >> > >> Thanks for any help. > >> > >> -Erik Reikes > > > > > > You will have to discuss this with your board > shop, to see how they want > > it documented (or even if they can do what you > want). > > > > One suggestion that I have seen is to use small, > undrillable holes > > (perhaps .001") to mark the center, ends, or > corners of the hole. This > > will give a reference point for the board shop, > and force them to > > contact you or read the documentation to see what > you really want. > > > > > > > > ____________________________________________________________ > You are subscribed to the PEDA discussion forum > > To Post messages: > mailto:[email protected] > > Unsubscribe and Other Options: > http://techservinc.com/mailman/listinfo/peda_techservinc.com > > Browse or Search Old Archives (2001-2004): > http://www.mail-archive.com/[email protected] > > Browse or Search Current Archives (2004-Current): > http://www.mail-archive.com/[email protected] > > __________________________________ Do you Yahoo!? Read only the mail you want - Yahoo! Mail SpamGuard. http://promotions.yahoo.com/new_mail ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
