Homebrew PCBs

--- 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