Homebrew PCBs

Thanks for making the photo.

Even allowing for the blurry image, the 1 mil line does not look one
fifth of the width of the 5 mil line?

I believe when you draw 1 mil in your PCB software, the printer
driver, printer resolution, transfer process, and etching process make
something significantly wider out of it.

Of course, lacking actual measurements on the PCB, or a way to make
those measurements, i can only make assumptions. However, given the
thickness of the copper it should be impossible to make traces
narrower than they are thick, lacking sophisticated directional
etching equipment like used for ICs.

ST

On Sat, Mar 7, 2009 at 7:42 PM, Derward Myrick <wdmyrick@...> wrote:
> Stefan, Phill KAoHJBG, Leon and others that were intrested.
>
> On Monday, February 23, 2009 1:21 PM I sent the below message
>
>  ----- Original Message -----
>  From: Stefan Trethan
>  To: Homebrew_PCBs@yahoogroups.com
>  Sent: Monday, February 23, 2009 1:21 PM
>  Subject: Re: [Homebrew_PCBs] Re: Surface Mount
>
>
>  I am using one mil copper.
>  Will etch  a test board in a couple days and
>  put it up for you to see.
>
>  Derward
>
>  I have been busy and just got around to doing it.
>  Go to this site and see it.  Note that there are 4
>  boards shown.  I did more but if I show more boards
>  it is hard to se the traces.  Also the one labeld five mil
>  is the three mill and the one labeled 3 mill is the 5 mill.
>  http://www.denhamsprings.com/pcb_1mil.jpg
>
>  Derward Myrick  KD5WWI
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
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