Re: PCB Design Kit Questions.


DJ Delorie wrote:
> zwsdotcom@xxxxxxxxx writes:
> > The 33 each deal is a much better buy if you meet the requirements.
>
> And if you need 3 boards.
>
> One of the things most people don't learn about prototypes is that
> they shouldn't try to make them the "final". Expect them to have

I would not consider ordering less than three boards for a first-spin
prototype.

1 piece to hack about, cut tracks, experiment with different values,
solder on probe wires. This board usually becomes pretty flaky by the
end of the bring-up session.

After I get the circuit working, 1 piece to build cleanly with all
patches applied as neatly as possible and show to the customer (or, if
I destroy #1, this board becomes the development prototype).

1 board remains blank so I can buzz out problems.

An accident that fries a board is merely irritating if you can go to a
spare, it's enormously costly if you have to pay 1-day turn prices to
get another one so you can meet the customer's deadline.

The only thing I don't like about the 33 each price is that if I'm
prototyping something 1"x2" I would like to pay less than something
6"x9"; it seems wasteful. For example, I'm making an electronic
business card/marketing tool that will be sent to select prospects.
It's standard business card size (though thicker), with a LED matrix on
one side. I am sending this out to one of the houses that charges for a
panel and doesn't care how many subpanels are inside it.

.

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