[sdiy] Homemade doubled sided PCB - what a dif a day makes

[Scott E.]

Hey Peter,

What product did you use to tin the copper traces? I may be needing to 
do this myself, soon.

Thanks, Scott E. (former general muncher)
---------------------------------------------------
Peter Grenader wrote:

> OK, I am pleased to announce that it looks like I have a perfectly
> registered double sided PCB sitting in a TIN flash bath as I type this.
> 
> What a pain THAT was.
> 
> Interesting - I used Radio Shack Copper clad yesterday.  While I didn't
> notice if it was 2 OZ or 1 OZ copper, it took nearly 55 minutes to etch,
> just to find that half of the friggin thing was about a fat 64th out of
> register front to back.
> 
> The copper clad today stripped in 7 minutes.  And thankfully, it uncovered a
> board that was pretty much buried front to back.  yay!
> 
> Amazing - the difference in etching time.  Same bottle of Ferrite Chl - both
> baths new (not reused) both slightly heated to the same temporature.
> 
> Anyway, I've got my board.
> 
> 
>