Jeffrey - I use within 0.005" maximum, not plus or minus, for top and
bottom score alignment. I prefer the scoring be done on equipment that does
simultaneous scoring of the top and bottom at the same time, as opposed to
flip scoring.
Ed Valentine
Electronics Manufacturing Solutions
8612 Mourning Dove Road, Raleigh, NC 27615
Phone: (919) 270-5145, Fax: (919) 847-9971
Email: [log in to unmask]
Website: http://www.ems-consulting.com
----- Original Message -----
From: "McGlaughlin, Jeffrey A" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, September 27, 2001 8:45 AM
Subject: Re: [DC] V SCORING
> What tolerance should be assigned for top and bottom score alignment?
>
> Jeffrey McGlaughlin CID
> Battelle Memorial Inst.
> Columbus Ohio
> [log in to unmask]
>
> -----Original Message-----
> From: Ed Valentine [mailto:[log in to unmask]]
> Sent: Wednesday, September 26, 2001 2:29 PM
> To: [log in to unmask]
> Subject: Re: [DC] V SCORING
>
>
> Depending on whether you have components near the edge or that are
sensitive
> to shock, I normally recommend +/- .002" web thickness tolerance with
0.012"
> web on 0.062" boards, and 0.010" web on 0.031" boards. With one customer
we
> are using a web of 0.008" +/- .002" on 0.031" boards.
>
> Ed Valentine
> Electronics Manufacturing Solutions
> 8612 Mourning Dove Road, Raleigh, NC 27615
> Phone: (919) 270-5145, Fax: (919) 847-9971
> Email: [log in to unmask]
> Website: http://www.ems-consulting.com
>
> ----- Original Message -----
> From: "John Wheeler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, September 26, 2001 12:47 PM
> Subject: [DC] V SCORING
>
>
> > Does anyone have/know of a standard tolerance to specify for the
remaining
> > web after scoring. Does +/-.004" sound reasonable.
> >
> > tia
> > John Wheeler
> >
>
> --------------------------------------------------------------------------
> -------
> > DesignerCouncil Mail List provided as a free service by IPC using
LISTSERV
> 1.8d
> > To unsubscribe, send a message to [log in to unmask] with following text
in
> > the BODY (NOT the subject field): SIGNOFF DesignerCouncil.
> > To set a vacation stop for delivery of DesignerCouncil send: SET
> DesignerCouncil NOMAIL
> > Search previous postings at: www.ipc.org > On-Line Resources & Databases
>
> E-mail Archives
> > Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
> additional
> > information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
> ext.5315
>
> --------------------------------------------------------------------------
> -------
>
> --------------------------------------------------------------------------
--
> -----
> DesignerCouncil Mail List provided as a free service by IPC using LISTSERV
> 1.8d
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF DesignerCouncil.
> To set a vacation stop for delivery of DesignerCouncil send: SET
> DesignerCouncil NOMAIL
> Search previous postings at: www.ipc.org > On-Line Resources & Databases >
> E-mail Archives
> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
additional
> information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
> ext.5315
> --------------------------------------------------------------------------
--
> -----
>
> --------------------------------------------------------------------------
-------
> DesignerCouncil Mail List provided as a free service by IPC using LISTSERV
1.8d
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF DesignerCouncil.
> To set a vacation stop for delivery of DesignerCouncil send: SET
DesignerCouncil NOMAIL
> Search previous postings at: www.ipc.org > On-Line Resources & Databases >
E-mail Archives
> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
additional
> information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
ext.5315
> --------------------------------------------------------------------------
-------
---------------------------------------------------------------------------------
DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF DesignerCouncil.
To set a vacation stop for delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------
|
