Hello,
You may want to have a look at Markus Zingg's THP setup. He has nice
board holding clamp which sounds similar to what Stefan has
described...
Three rods, with half their ends cut/filed away for a short distance,
and "slider" with three rod-sized holes. With the slider at the top,
the rods "spring apart to grip the board. pushing the slider down
towards the board increases this pressure.
If a hole were made in the tank "lid" from which these three rods
project, then the slider could be actuated without touching any "wet"
parts...
Just some thoughts on a full moon night<G>
Ballendo
--- In
Homebrew_PCBs@yahoogroups.com, "Norman Stewart"
<normstewart@a...> wrote:
> I think that there are several of us that would appreciate a sketch
or two,
> Stefan.
>
> And to the rest of the group -
> I'd also appreciate some more info on the HCl + H2O2 etchant - I
hadn't run
> across that one before. Proportions? Temperature? Etch time? etc.?
>
> Norm