Re: How much acid in bath?
If your acid ratio, or bath temperature (both really important) are not right on, the volts will be off.
For your first runs, don't don't worry if your volts are too high or low. Just get your bath mix (1:3 battery acid/water by volume), and the temperature correct (~68F-70F), and while running in CC mode (set at the calculated amps), make notes of the volts at timed intervals. The volts curve will give you valuable clues if something goes wrong, so get in the habbit of making notes.
Do not ano longer than the calculated time, and never longer than for a 1mil build. Desilution will occure (which is probably what happened to you), and you'll end up with a chaulky, fragile finish.
So let's re-cap:
1:3 battery acid/water mix.
68F bath temp.
Good, strong electrical coonection to the part.
Cathode at least as big as the part.
Vigorous agitation.
LCD current densities (I use 6 amps per sq. ft.)
Timed ano run per 720 rule.
CC power supply.
Good notes.
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Specializing in anodized graphics in Paintball guns.
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