Homebrew PCBs

I tin after etching, befor etching would be more difficult in the 
toner transfer process unless you get a perfectly smooth surface.  

The cost of toner is about zero with regard to toner transfer, I am 
quit certain the toner for a circuit board is far less than 1 penny. 
Don't know how it can use "Lot's" of toner, but then again, "Lot's" is 
a relative term.

The etchant cost, I don't know yet how much per board that is.  
However, so far it doesn't appear to be too expensive.

I use PCB Wizard, don't know about Eagle, others may answer that as it 
is very popular.

Chris




> Do you tin plate before etching? Either way, it uses either lots of: 
> plating, toner, or etchant. Unless you're using photo-resist, in 
which case 
> the extra light is more or less free, and exhausted developer is 
still 
> cheap.
> 
> What software? Is it possible in Eagle?
>