Homebrew PCBs

> PTHs are possible to do at home but you should be aware that it 
> involves many chemical stages. Although these chemicals are not 
> necessary highly toxic they can be a difficult process to control 
> and get working properly. So unless you find chemistry fun and 
> don't mind getting your hands wet then I its a complete waste of 
> time and money trying to implement a PTH workshop at home. I 
> have setup the necessary plating and etching tanks to make a tin 
> finish pattern plated board and had taken me almost two years. 
> The holes are made conductive using a processes similar to 
> MacDermid's BLACKHOLE processes where by a conductive carbon 
> black layer deposited inside the holes prior to electroplating. If 
> you have any questions then feel free to ask.
> 

Hey Adam maybe you should write a produre of your method of making 
PTH. I would love to know the costs involved and chemistry. I am not 
familar with the BLACKHOLE method. The hardest part is making the 
holes conductive. I know the squeezee method were you squeeze 
conductive ink into the holes. But the ink is very expensive. Also 
the Gallum method but Gallum is hard to find. Is the BLACKHOLE the 
same.

Thanks.

--
John Hallows