I have often been told to allow a 1" on the panel by board vendors, but some
additionally tell me one edge must have a 2" border for various coupons.
Does this pertain to the class of fabrication or is this just a preference
among some board fabricators?

Seth Goodman
Goodman & Associates
7687 Leta Way
Verona, WI 53593
Tel (608)833-9933
Fax (608)833-9966

> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]On Behalf Of Anne Ledger
> Sent: Tuesday, January 05, 1999 12:28 PM
> To: [log in to unmask]
> Subject: Re: [TN] Two up on panel
>
>
> Dennis,
> As a board vendor, our basic rule of thumb is to maintain a 1" minimum
> border on the panel with  minimum spacing at just enough to accomodate a
> router bit but preferred at .2 or better.  There is also the option of
> scoring the two boards apart, leaving even less than the router bit
> width.  Different tooling systems can dictate the available useable
> space within the panel, which explains the difference among your
> vendors.
>
> Anne Ledger
> Manufacturing Engineering
> EMDS, Inc.
> [log in to unmask]
>
> > -----Original Message-----
> > From: Dennis Ward [SMTP:[log in to unmask]]
> > Sent: Tuesday, January 05, 1999 11:06 AM
> > To:   [log in to unmask]
> > Subject:      [TN] Two up on panel
> >
> > Good morning everyone,
> >
> > Hope everyone had a great New years. Quick
> > question. On a 18 X 24 panel what is the maximum
> > size of an individual board and still get TWO boards
> > per panel? Please no "contact your board vendor"
> > replies. I have documentation for four different
> > vendors and each has something different. And I
> > understand that each will be different. I am curious
> > how these vendors stack up with the rest of the
> > industry. I've seen sizes from 16.00 X 10.90
> > (the smallest) to 16.50 X 11.20 (the largest).
> >
> > What is realistic? Is the 16.00 X 10.90 too
> > conservative and the 16.50 X 11.20 too large??
> >
> > Thanks for the replies
> > Dennis
> >
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