The etching tank.
Board treated with photoresistant laquer, UV light and developed later on.
Right after putting the board into etching tank (fresh acid).
Few minutes later... (the acid went a bit blue).
Board right after taking it outta the bath.
Remaining laquer cleared up with acetone.
The complete set of tools i used to etch this one.
Top layer of board... (outta focus but CBA to fix it).
And the bottom layer.
Yeah i have soldered encoder already and screwed the spacers.
PCBs beforre tinning (copper layer exposed).
PCBs chemicaly tinned.