Howard,
With an etch time under 10 minutes and clean results, I'm happy with this
simple approach.
Rick
-----Original Message-----
From:
Homebrew_PCBs@yahoogroups.com [mailto:
Homebrew_PCBs@yahoogroups.com]
On Behalf Of StoneTool
Sent: Friday, November 23, 2012 2:59 PM
To:
Homebrew_PCBs@yahoogroups.comSubject: Re: [Homebrew_PCBs] success!
Rick:
Have you opted against the bubble agitation system altogether?
Sounds like a simple and logical method the way it was presented.
Howard
On 11/23/2012 01:14 PM, Rick Sparber wrote:
> A friend looked at my pictures of my failed etchings and suggested I
> lower my UV light and greatly extend the exposure time. I went from 7"
> down to 2.5" and from 1 minute to 8 minutes. HUGE improvement. My
> first test piece was done etching in 9 minutes with the ferric
> chloride at about 75F. The second test piece used the same set up and
> chemicals but the acid sat out in the Arizona sun for about 15 minutes
> so must have warmed up. It etched in
> 5.5 minutes.
>
>
>
> My next test cycle will be with all the same except I will try using
> convection etching.
>
>
>
> Rick
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
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Photos:
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>
>
>
>
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