[sdiy] PCB Design

[Samppa Tolvanen]

On Sun, May 3, 2009 at 6:03 AM, David Ingebretsen
<dingebre at 3dphysics.net> wrote:

> First, I purchased and will be using Target 3000!, (the medium version, 2
> copper layers, 1000 pins/pads I added up some of the schematics I wanted to
> do and this seemed to fit the bill without completely decimating my wallet).
>

Excellent choice.


> 1. How critical are coupling effects between traces and components? Target
> will do an EM radiation analysis, but I've not seen or read that this is
> critical for the type of circuits I'm interested it for my modular.
>

Non-existent phenomenon in Your system aimed to perform in the audio
range. Guard rings around actually sensitive inputs maybe helps.

> 2. How critical is it to have some sort of large ground plane on the PCB?

Who knows? There's always a bunch of star-grounders around, who like
to split planes. I help myself with routing by using plane as GND.
What's wrong with that?

> 3. Any hints, advice, rules of thumb, that will be helpful? Typical track
> widths? Typical pad sizes? Anything else?

Bazillion. ;)

Samppa

p.s. For DIY PCBs download the PCBpool edition.



> I followed the discussion a while back on PCB manufacturers and it was quite
> helpful.
>
> I'm really not thinking I'm going to be trying to make exotic, highly
> optimized, many, many layer boards. I just want to avoid point to point on
> perf board.
>
> Thanks everyone.
>
> David
>
> David M. Ingebretsen M.S., M.E.
> Collision Forensics & Engineering, Inc.
> 2469 East Fort Union Blvd. STE 114
> Salt Lake City, UT 84121
> www.CFandE.com
>
> 801 733-5458 Office
> 801 842-5451 Cell
>
> dingebre at CFandE.com
> dingebre at 3dphysics.net
>
>
>
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