Homebrew PCBs

On Wed, 26 Oct 2011, Donald H Locker wrote:

> I'll let you know when I figure out a safe one.  I believe HydroFluoric 
> (HF) acid etches it quite well, but is extremely hazardous to handle. 
> Most of the formulae I've seen use HF and H2O2.  Sorry to all that we've 
> wandered a bit off-topic.

If you're interested in pursuing Ti etching, try a mechanical approach. 
Suppose we put a pattern on a sheet of thin rubber, then dissolve away 
what we don't want.  Use that rubber as a mask for sandblasting.

-- 
David Griffith
dgriffi@...

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