Make your own copper etching acid

[Ben Hibben]

Just in case Brad feels like taking his workshop up a notch he can make his own etching solution:

https://www.youtube.com/watch?v=43Xsh9J7S-g

Blenster

[Christopher Cprek]

We already make etching solution from HCl and H2O2. You've got to be
careful of the vapors and only etch in ventilated areas, but the
solution will reactivate when more oxygen is pumped through it. I like
using it more than ferric chloride.

Speaking of which, I made a new etchant tank for the space. But the
aquarium pumps I left at the space are no longer functional.

Anyone have an aquarium pump they could donate?

Chris

[Ben Hibben]

I didn't know you could reactivate the stuff we're using; that's awesome!!

Blenster