--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
> You better have one very large pad in that place than, or a
groundplane ;-)
We must learn this: suction cup is a verry good ideea to make huge
pads ;-)
I refer to a one side board. You are wright, this system is not
applicable to 2 side boards. A frame system is better.;-)
About spiral patern: I'm not sure is working...it's a complicated
question. In teory is working, but...
Maybe we sould talk whith a fluids dinamics engineer to give us some
advices ;-)
Or make some experiments.
The magnets is the easyest way to rotate the board. I like this.
There is the easyest alternative to vibrating the board. I have an old
shaveing machine for this job. But same problem: the bottom will be
over etched. So let's return to rotating ideea...
Some experiments is a must...
Adrian