Homebrew PCBs

I finally etched my board.  Result was excellent.  Pics are posted in the photo section under "Samsung 1665"

This is a relatively complex 2 sided board. As I've mentioned previously, the I used a Samsung 1665 printer on glossy magazine paper.  It only took one try to get etchable results.  Transfer was done using the lowest cost laminator from Walmart.  I ran it through 4 times.

Etching was done using 500ml of cupric chloride which I made by dissolving copper wires in HCL and 33% H202.  I have 1.5L but I was curious how much H2O2 is needed to keep the etchant fresh.  This board required 25 drops. The solution turns brownish when it is spent.  Adding a few drops of h202 changes the color back to emerald green.

Many mentioned having trouble removing the toner after etching.  In Canada, there's a paint brush cleaner call "Polyclens".  I just paint it on, wait 30 seconds and then wipe off the toner with paper towel.