Homebrew PCBs

> I discovered about 15 years ago a technique which
> has worked 
> flawlessly for me and etches in about 5 min.:  Float
> the board, 
> copperside down, on the etchant.  The surface
> tension of the FeCL3 
> easily supports the board.  As the copper disolves
> into the FeCL3 
> the Fe, which is heavier, drops to the bottom of the
> container.  

Anyone else had this brainwave ?

Sounds nice ! So why do others use agitators ?

Anyone ?

> progress just fine through the board.  Heating (luke
> warm) the FeCL3 
> first does help, but we all know that.  Just drop
> the board on to 
> the etchant, walk away for 5 minutes, and the board
> is done.  Give 
> it a try next time.

How much FeCl3 you mix up with the water ?

Do you keep it heated ?

KamalS


       
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