On 18/03/2011 22:48, Vitaliy wrote:
> - You can't have very fine traces. The thinnest trace you can get is abou=
t
> 15 mils.
> - The layer of ink varies in thickness, and it's fragile, which means you
> have a very thin margin of error when it comes to etching. A few seconds =
too
> long, and you get holes in your traces.
yes. My experience  as school kid.
After college I made my own UV exposure box.

But apart from the experience with PCB milling, which I have mixed=20
feelings about, I use bureaux now. No comparison on quality.
I was only using the mill because I wanted to turnaround PCB filters of=20
800/900MHz in a few hours. I now think better design and simulation and=20
commercial board. But it was interesting experiment.

--=20
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