Homebrew PCBs

Hi 

I find that if I submerge the board in the ferric and then out into the air,
causes the reaction to be spead up.
I do this by placing the boards facing up in a tank. Add ferric untill the
board is about 1cm deep in the fluid.
Then place on a table with a very simple motor assy. 
The motor assy needs to rock the table like a see-saw.
To gently move the tank as if on a see-saw, this allows the board to be
submerged, then aired , then submerged etc.

Simple yet very effective, even without heating the ferric

Hope this helps.


Stuart