Article View: sci.electronics
Article #16915Re: PC BOARD ETCHING QUESTIO
From: Alex Novickis
Date: Mon, 11 Jan 1993 03:04
Date: Mon, 11 Jan 1993 03:04
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1494 bytes
In article <1993Jan10.225053.28590@phx.mcd.mot.com> schuch@phx.mcd.mot.com (John Schuch) writes:
>I, to, have had this problem once in a while but have found most
>cameramen pretty darn accurate. Another thing I ALWAYS do is include
>a rule in the artwork. Something like this:
>
> |----|----|----|----|----|----|
> | |
> |<-------- 3 INCHES --------->|
> | |
>
>
With current laser photoplotting technology, WHY ?? whould you want to
do reductions ?? LP's can generate things much finer than you can
ever hope to etch.... I think that's about 4 mil traces with 4 mil
seperations. And it usually costs me under 10$ for a 10x10" film (OK,
well I do need several of them... but still)
--
Alex P. Novickis, Real Time systems demi-guru. (W) 408-862-4541
ALINK:alex.n (H) 415-691-0657
UUCP:{amdahl,claris,pyramid,sun,decwrl,well,ubvax,ames}!apn@apple.com,apn@nonvon
"I think... I think it's in my basement. Let me go upstairs and check"-Escher.
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Path: arc1-ca.pugleaf.net!sparky!uunet!stanford.edu!apple!apn From: apn@Apple.COM (Alex Novickis) Newsgroups: sci.electronics Subject: Re: PC BOARD ETCHING QUESTIO Message-ID: <76416@apple.apple.COM> Date: 11 Jan 93 03:04:32 GMT References: <1993Jan7.142018.12112@phx.mcd.mot.com> <C0Iwtw.JpK@news.iastate.edu> <1993Jan10.225053.28590@phx.mcd.mot.com> Organization: Apple Computer Inc, Cupertino, CA Lines: 29