Hi, Russel


	Ok... One almost not nasty chemical :-) Ferric Chloride. 
 
	Another insteresting aspect here.... I use a small quantity and
"rub" the board with a sponge ! It takes etching timing down to less than 2
minutes ! It is better explained in this link:
http://www.pulsarprofx.com/PCB/a_Pages/5_Support/5b_Tips_Tricks/Tips_Tricks.
html#Anchor-49575

	Works beautifully.... If you want I can take some pictures of the
boards I made this way.. Just do not try without the laminator. The results
are not consistent. With the laminator everything is great.
 
Best regards,
Alexandre Guimaraes


-----Mensagem original-----
De: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] Em nome de
Apptech
Enviada em: segunda-feira, 28 de janeiro de 2008 12:29
Para: Microcontroller discussion list - Public.
Assunto: Re: [EE] Dirt Cheap PCB protos?

> I have been doing toner transfer with pulsar paper and laminator and I 
> have to admit that I am  really impressed with the results. I can make 
> 2 sided boards with 6 mills tracks and 6 mills spacing without much 
> effort.
> For vias I am using mechanical eylets. It works great almost 
> eveytime... For "plating" I am using cool-amp silver.
>
> It is so easy to make that it is amazing... And no nasty chemicals...

What do you etch with?


        Russell


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