Homebrew PCBs

Has anyone found the staedler (or other store-bought pens) able to withstand
the muriatic acid and hydrogen peroxide etchant solution? I tried both the
sharpie "paint pens" with fair results, and sharpie permanents. Both seem to
immediately dissolve in the solution.

 

Good luck,

Kevin Wolf

 

-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
On Behalf Of Lez
Sent: Wednesday, May 09, 2007 6:41 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: [Homebrew_PCBs] Re: Circuit Cellar article

 

>
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> > The Super Fine pens seem to plot about a .015" wide trace which
> > severly restricts layouts (relative to what I have been doing so far).
> >
> > I went for the Staedtler pens based on SO MANY recomendations here
> > from SO MANY people as to how well it holds up to etching. Aside from
> > putting the ink on the copper, has anyone had to do any other special
> > treatments (heating, drying, etc.) before performing the etching
> > process?
> >

The best hold up to etch I have found is the uniball paint pen, I have
only tried the px203 white, its tip is fine but thats not fine by our
standards, but for standard DIP layouts its a superb pen.

I'm still trying to find a friendly driver for dip trace, I currenty
export it as BMP, then edge detect it, then load that into a vinyl
cutting package, takes longer than designing the boards lol

 


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