Richard wrote:

> that    somebody is selling something like a Sheet to make PCB
> design.
>
>         Yesterday I talked to him and he said: You only got to
>         "Iron" the Sheet

>         Somebody know something about that amazing thing...?

I've used them too.   They work moderately well.  I had trouble using
them for very fine line work, and had variable results, sometimes
good sometimes bad.

They are a good cheap way to make a halfway decent PCB.   Highly
recommended for students and home hobbyists.

Most mailorder catalogs (Mouser, Digikey ) sell them.  I don't know
what is available in Venezuela.

I often get my designs photoplotted, and use a light activated
process these days, as I'm designing finer and finer lines on my
boards.  Photoplotting costs me  US $12.50 per sheet.  I wouldn't
recommend this as your first try at printed circuit boards, though.

You can also try the stick-on photoresist shapes.  They are simple,
cheap, low tech, and pretty reliable, although tedious.  A good old
etch resist pen also works.   Get a Staedtler-Mars Lumocolor #313,
red color.  The ink is indestructible.  Any good drafting supply
store should stock them.  They are actually a marking pen, just
happens that they work well for etch resist pens.



-- Lawrence Lile

     "An Engineer is simply a machine for
      turning coffee into assembler code."

Download AutoCad blocks for electrical drafting at:
http://home1.gte.net/llile/index.htm