Homebrew PCBs

On Tue, 07 Dec 2004 17:01:00 +0000, Leon Heller <leon_heller@...>  
wrote:

>
> I've got a rectangular stone, about 10 cm long. Haven't tried it with an  
> air
> pump, though. I find that contnuous manual agitation of the etchant
> container worrks very well, and only takes 10 minutes or so.
> Leon
>


My container is unsuited for moving it. also it takes longer with my CuCl  
if i don't add high
amounts of H2O2 and i don't want to stay put until it is done.
I have hooked a geared motor to the pcb holder via a rubber band several  
times, which worked
very well for agitating, but tends to shake the PCB loose.
Another thought was to use some sort of plastic paddle to create waves or  
a current in the
tank....

ST