Homebrew_PCBs

could copper foil be stuck to fiberglass boards to make PCB's?

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That's how they *are* made. Also how the Cir-Kit repair sets sold by Pace work.

D.
-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of lex allen
Sent: 18 March 2013 15:38
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Copper foil

could copper foil be stuck to fiberglass boards to make PCB's?

[Non-text portions of this message have been removed]



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On 18/03/2013 15:37, lex allen wrote:

> could copper foil be stuck to fiberglass boards to make PCB's?

I thought that was how they were made!

Leon
--
Leon Heller
G1HSM

well yeah sort of but the way they are bonded is specific just using copper
foil will be kinda flakey unless the adhesive you use is heat resistant so
you can solder the contacts otherwise it will just lift up all over the
place.
terramir

On Mon, Mar 18, 2013 at 12:34 PM, Leon Heller <leon355@...>wrote:

> On 18/03/2013 15:37, lex allen wrote:
> > could copper foil be stuck to fiberglass boards to make PCB's?
>
> I thought that was how they were made!
>
> Leon
> --
> Leon Heller
> G1HSM
>
>
> ------------------------------------
>
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>
>
>
>


--
Respectfully,
R. Daniel Borkan
727 S. Coronado St. 201
Los Angeles, CA 90057
H: (213) 739-1863
C: (213) 271-6721


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On 3/18/2013 12:38 PM, r.d. terramir wrote:

>
> well yeah sort of but the way they are bonded is specific just using
> copper
> foil will be kinda flakey unless the adhesive you use is heat resistant so
> you can solder the contacts otherwise it will just lift up all over the
> place.
> terramir
>

The foil (comes in varying widths) made for stained glass artwork has
heat resistant adhesive - it's made to be soldered after sticking to glass.

Norm
W6NIM


[Non-text portions of this message have been removed]

> > well yeah sort of but the way they are bonded is specific just using
> > copper foil will be kinda flakey unless the adhesive you use is heat
> > resistant so you can solder the contacts otherwise it will just lift
> > up all over the place.
> > terramir
> >
> The foil (comes in varying widths) made for stained glass artwork has heat
> resistant adhesive - it's made to be soldered after sticking to glass.

It's not that heat resistant.

In stained glass it's bent around the glass forming a U-shape, and once
that's covered in solder it doesn't matter if the adhesive fails, it's not
going anywhere.

Tiffany used beeswax to hold the foil in place until it was soldered. Some
of the glass in his lamps rattle because the beeswax evaporated over time.

The OP may find this interesting:
http://hackaday.com/2011/09/12/glass-pcbs/. He was just gluing the copper
foil to the glass, but he did try the foil method as suggested. Can't
remember his outcome...

Tony