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October 2009

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Subject:
Re: drill tolerance
From:
Tracy Norton <[log in to unmask]>
Reply To:
(Designers Council Forum)
Date:
Thu, 1 Oct 2009 08:24:48 -0700
Content-Type:
text/plain
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text/plain (87 lines) 
Thanks James
I purchased 2222 download yesterday and that's what I'm using.
Tracy

James Head wrote:
> For rigid boards, IPC-2222, section 9.2.1.2, table 9.2 lists minimum non-plated hole tolerance ranges, and section 9.2.2.2 has plated hole tolerances, given in table 9.5.
>
> Regards,
>
> James
>
> James Head BEng CID MIIE MIET
> Senior PCB CAD Engineer
> Crowcon Detection Systems Limited
> 2 Blacklands Way
> Abingdon Business Park
> ABINGDON
> OX14 1DY
>
> Telephone:      +44 (0) 1235 557700 extension (9) 289
> Fax:            07092024504
> Email:  [log in to unmask]
>
>
>
> -----Original Message-----
> From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of Tracy Norton
> Sent: 30 September 2009 17:36
> To: [log in to unmask]
> Subject: [DC] drill tolerance
>
> I just got caught in an embarrassing situation. A client pointed out 
> that I don't have drill tolerance specified on my fab notes, and wants 
> it added AND referred to the specific IPC standard
> I looked back at all my work as far back as to '98...and there's no 
> drill dia tolerance callout!
> All I need is pointed to specific standard so I can research it and add 
> to notes
> Thanks!
> Tracy Norton
>
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