From: Spehro Pefhany
Subject: Re: Newbie PC Board Question
X-Newsreader: Forte Agent 1.92/32.572
Date: Fri, 03 Jan 2003 18:41:55 GMT
NNTP-Posting-Date: Fri, 03 Jan 2003 13:41:55 EST
On Fri, 3 Jan 2003 10:15:48 -0800, the renowned "PackratPaul"
>Been lurking here for some time and am interested in having some pc boards
>made. These would be from 1 to 6 square inches each. Why is it that pc board
>companies want a premium for multiple boards on one sheet. If a board is 1"
>x 2", you can get a lot of these on a 12" x 15" sheet(just an example, I
>don't know what a standard sheet size is). Seems to me that it doesn't cost
>them any more if you were to provide the files that they need to do this
>verses the files for a full sheet design. Thanks for any insight....Paul
There is some strangeness in PCB quoting, particular in small/medium
quantities. There is a certain amount of handling per board seems to
be the way they figure it.
If you provide a file that has them stepped and repeated, it should
not cost any more or less, provided you are willing to cut them apart
yourself. That may be negotiable. I sometimes get quotes both ways
just to keep them honest. Sometimes the opposite happens, they get
excited about 5,000 pieces of a small board, but 250 pieces of 20-up
hardly sounds worth doing.
Prototypes are another issue, don't look for the logic, just compare.
If you have any quantity of small boards, you should be considering
ways of reducing the handling by keeping them attached in groups
and/or sets as far through the production and even testing process as
"it's the network..." "The Journey is the reward"
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