Power source for anodizing.....electro etch?

[Jared Dinwoodie]

I just picked up a dc power source variable from 0 - 120 volts for anodizing and was wondering if this thing could be used for electro etching too? I don’t have it set up yet or I would just try it.

 

[Ken H>]

That will work good for etching on DC, just turn voltage down to 18 vdc or so. Then you'll need an AC source in the 15 to 20 VAC range for the "blacking" portion of the etch. You could also get a good deep etch on DC, then "paint" a black in the etch, then sanding with 800 to 1200 grit to remove from surface. Simple old markers work but don't last all that well.

Seems like some folks have used a bluing compound to blue (which is usually blackish in color), then sanding surface.

Did you find a good "cheap" source for the power supply?

 

[Jared Dinwoodie]

That will work good for etching on DC, just turn voltage down to 18 vdc or so. Then you'll need an AC source in the 15 to 20 VAC range for the "blacking" portion of the etch. You could also get a good deep etch on DC, then "paint" a black in the etch, then sanding with 800 to 1200 grit to remove from surface. Simple old markers work but don't last all that well.

Seems like some folks have used a bluing compound to blue (which is usually blackish in color), then sanding surface.

Did you find a good "cheap" source for the power supply?

I found one on Amazon for $150 it seems that a lot of people use it

https://www.amazon.com/TekPower-TP1...wer+supply&qid=1585523677&s=industrial&sr=1-3

 

[Ken H>]

Good looking power supply - too bad it's not a tad more amps.

 

[Florian.]

I am thinking about getting this power supply. How good does it work for anodizing titanium? I am asking because it has only 1A.
I have also problems with anodizing with my setup: https://www.bladeforums.com/threads/bad-problems-while-anodizing-titanium.1726394/
Maybe my power supply is the problem but I do not know.