Well, I just downloaded a program called "KwickFit" which defaults to 18x24
with a .65 border
(now I don't know why I was thinking 12x18? hmmm... gettin' old I guess)
It also has suggestions for 21x24 and 21x27, not sure why it picks those,
but not the 22x20
you mentioned
Thanks for the responses, but the reason I don't want to work with a
specific supplier is that
we want this to be UNIVERSAL. We want anyone to be able to build it for the
next 20 years.
Assume we were trying to develop a company standard for a particular type
of products, but
we don't know who is going to build it.
(by the way, KwickFit is a nice tool, easy to use, and free 30 day trial,
no registration required)
anyway, thanks gain,
Jack
.
On Wed, Oct 31, 2012 at 10:29 AM, Stadem, Richard D. <
[log in to unmask]> wrote:
> Jack, there are standard flats sizes ranging all the way up to 22" by 20".
> I know there are even larger sizes, but they are not "industry standard"
> sizes, so to speak.
> A good PWB fab house is very willing to help you with proper layout to
> optimize the number of blanks that can be taken from a flat, as well as
> depanelization schemes. Keep in mind you don't need to be tied into any one
> depanelization method, but a combination can also work well. For example,
> routings with a score line passing perpendicular through the end of the
> routings.
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Jack Olson
> Sent: Wednesday, October 31, 2012 9:27 AM
> To: [log in to unmask]
> Subject: [TN] FAB: panelization sanity check
>
> Greetings,
>
> This is a very basic question, but I'm trying to design a board size that
> will get the most yield out of a standard 12x18 fabrication panel. It's a
> 6-layer rectangle with nothing fancy (8/8, 12mil holes, ENIG), but we want
> routed (not v-scored in this case) and we want 6 boards per panel.
>
> So I have always used the guideline of 1 inch clear all around the panel
> edge, (10 x 16 to working space), and 100mil between boards for routing, so
> I am looking at something like 4.95" x 5.26", right?
>
> But in this case even 50mils extra would help me, so I'm wondering how
> much I can push the envelope and still have it manufacturable by ANY
> competent supplier.
>
> Can two of the panel edges be less than 1 inch?
>
> Do I have ANY wiggle room?
>
> Jack (aka "the new guy")
>
>
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