etching works albeit at times it takes, forever and a day (so to speak), my
problem is more on the transfer side of things it's a royal pita.
terramir
On Fri, Dec 28, 2012 at 5:58 AM, AlienRelics <alienrelics@...> wrote:
> Actually, the recipes using the stronger peroxide also require you to add
> distilled water. Brick cleaner HCl with 3% grocery store peroxide just
> doesn't need the water added.
>
> So how are you using it? The mixture is supposed to turn into CuCl and be
> reusable by simply bubbling air through it, or adding peroxide (not as good
> because you keep watering it down).
>
> In fact, it doesn't turn into CuCl until you've etched some boards or
> added copper by tossing some copper wire into it and letting it dissolve.
>
> Adam Seychell's website on CuCl etchant is kind of the gold (copper?)
> standard in instructions on care and feeding of CuCl etching:
> http://home.exetel.com.au/adam.seychell/PCB/etching_CuCl/index.html
>
> Steve Greenfield AE7HD
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "terramir" <terramircomputers@...>
> wrote:
> >
> > Hi terramir here,
> > I've been doing etching with hcl (the safer stuff home depot) and
> hydrogen peroxide (sad to say only the 3% stuff from the grocery store.
> > and as etch resist using toner transfer with HP photo paper and a
> brother hl5240 with a generic toner cart. and a run of the mill iron.
> > Anyways Just wanted to intro myself to the group, today I'm actually
> going to try to find parchment paper since I saw online that it can work
> better and it could also be used for photoresist.
> > Well I bought 100 uv led's but as of yet have not etched the circuit
> board to make that happen.
> > well anyways hope to learn alot in this group, and well I saw something
> today some peeps were using black matt spray paint and a laser cutter I
> wonder how much powerful of a laser it would take ( i build reprap's so I
> could build a bot for that) to distroy a thin layer of paint so I could
> etch have etch resist that way.
> > Anyways hi group
> > terramir
> >
>
>
>
> ------------------------------------
>
> 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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