DESIGNERCOUNCIL Archives

December 1997

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Subject:
From:
Scott Buscomb <[log in to unmask]>
Reply To:
Date:
Mon, 22 Dec 1997 06:29:30 -0800
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Brandon,

An after-scoring machine is like a stationary radial saw or pizza cutter that completes the score
after the boards are assembled. It eliminates the stress on the components because the boards are
cut not snapped. You must design for blade clearances. I beleive a brand name is "Afta-Score".

Scott

[log in to unmask] wrote:

>   Scott,
>     What is an "after-scoring" machine?  We score most of our boards and also
>   have concerns about component breakage.  The other advantage to some type of
>   board removal device is that we may be able to place to boards closer
>   together.  Currently we are required to place the boards far enough apart to
>   leave a large piece of fr4 left to grab a hold of.
>     Any info would be appreciated!
>
>   Regards,
>
>     Brandon G. Luther
>     Dataram Corp.
>     P.O. Box 7528
>     Princeton N.J. 08543-7528
>     (609) 799-0071  x310
>     FAX (609) 897-7035
>     [log in to unmask]
>
> ______________________________ Reply Separator _________________________________
> Subject: [DC] PCB Scoring
> Author:  <[log in to unmask]> at Internet
> Date:    12/16/97 6:34 AM
>
> Steve Collins wrote:
>
> > I have a design that lends itself to being V-Grooved but I seem to recall
> > either in a Forum discussion of a personal discussion that this could be
> > dangerous for multilayer bd.. The reason would be that it would be possible
> > to fracture an internal layer with the V-Groove panel style. When I think
> > about the alternative which is to rout the board it seems to me that the
> > same danger is present when you break the boards away from the tabs present
> > on the panel. Does anyone else have a feel for this or have experienced any
> > of the things I has discussed.
> >
> > Steve Collins
> >
>
>  Steve,
>
> Use an after-score machine to break the boards out of the panel.
>
> --
> [log in to unmask]
> Techsonic Industries
> 1111 Alderman Dr. Ste. 250
> Alpharetta, GA 30005
> 770 475-3020 ext.1032
>
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--
Scott Buscomb, Senior Designer
[log in to unmask]
Techsonic Industries
1111 Alderman Dr. Ste. 250
Alpharetta, GA 30005
770 475-3020 ext.1032

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