Homebrew PCBs

> > 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.


Laser the pattern instead (vinyl or plastic masking), then sandblast.
Common enough technique.

Tony