Homebrew PCBs

>From: "Bob Weiss" <BWeiss@...>
>Reply-To: Homebrew_PCBs@yahoogroups.com
>To: Homebrew_PCBs@yahoogroups.com
>Subject: [Homebrew_PCBs] Question about developing a board
>Date: Fri, 01 Oct 2004 15:21:56 -0000
>
>I made a couple PCB's awhile ago using the decal method and never
>want to go through that again!. Well anyway, I have access at work
>to a film printer (work at a newspaper) and I can print negatives
>upto a size 11x17". I was wondering what do I need to take a blank
>double sided copper board and make it into a circuit board? Do I
>need a developer, light, etchant and resist solution and I am good
>to go? Could anyone also recommend a good company for these products?

I use NaOH solution for developing (very cheap) and a UV exposure unit I 
built myself, with pre-coated boards (positive-working resist). 
Negative-working resist boards are difficult to find, you'd be better off 
making positives. The PCB manufacturers use negative-working resist as it 
gives better definition, but it's not really suitable for home use.

If you want to buy everyting you need off-the-shelf, try Mega Electronics 
(UK).

Leon

Leon