Homebrew PCBs

If you're doing a single sided board, or you can plate your vias 
through,
you can just print the component outline on paper, then use spray 
adhesive
to glue it on the top side of the board. Use a needle to punch through
the holes for component legs. You could also print on label stock and
stick it on the board, but it's usually a little thicker (and tougher to
punch the holes through) than paper.

Of course high wattage (hot) devices will set the paper on fire, etc.

Regards,
   JJ

On Friday, May 28, 2004, at 12:44 PM, Stefan Trethan wrote:

> Another breakthrough:
>
> You get a PERFECT component outline transfer if you clean the board 
> with
> this abrasive-type kitchen cleaner.
> No clear laquer needed.
>
> It polishes away the ugly paper residue and gives a beautiful finish.
>
> I also discovered that surface cleaning and paper handling does not 
> matter
> very much with toner transfer of the component outline.
> If you use doublesided boards the epoxy surface is nicely rough after
> removing the copper
> and it adheres very well.
>
> Aligning is a bit tricky, but i first place the component outline 
> paper on
> the bottom
> of the pcb, where i can easily align it with the copper image.
> then i draw lines at the edges of the pcb, cut out the paper, place it 
> on
> top
> and fuse.
> It does not cause bad results here if you touch the freshly printed 
> image
> on the paper.
> much less critical...
>
> I'd say the looks are well worth the extra effort.
>
> Now let's hope the baking tomorrow will not ruin the beautiful 
> component
> outline...
>
> ST
>
>
>
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