Homebrew PCBs

----- Original Message ----- 
From: "LogicResearch" <logicresearch@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Wednesday, April 05, 2006 7:00 AM
Subject: Re: [Homebrew_PCBs] Making the PCB


> Hi again.
>
> Well so much for that - I was going to continue trying to get a good
> development but I might as well try something else as I need to get some
> PCBs made soon.
> I have just finished an email to a knowledgeable fellow, to whom I 
> admitted
> that the new photoresist from RS may as well have been a can of whipped
> cream for all the good it does.
>
> The reason I am back here again is that I have found (whilst looking for
> Riston PCB's) Press 'n' Peel film.
> Simply (as they say) copy or print the artwork onto this film with a laser
> printer, Iron onto the blank PCB, peel off the film, and etch - simple.
>
> Has anyone used this before and is it as good as they say?

Some people get good results, with a lot of messing about with heated 
laminators. I've never been able to get it to work properly, using an 
ordinary clothes iron.

>
> Also I see another chemical, Ammonium Persulphate, that I have never 
> used -
> anyone use this and does it have any advantages over Ferric Chloride?

It's a lot cleaner as the solution is colourless, and the board is visible 
during etching. It won't keep when made up, fresh solution has to be used 
each time.

Leon
--
Leon Heller, G1HSM
leon.heller@...
http://www.geocities.com/leon_heller