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.
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