Blacker than black

So I had an unusual request lately, a good friend of mine asked if I could make titanium business cards.

Why农田indeed So armed with他和power藕粉chemistry爱你的啊laser， let's都this。

Dammit. Hit the font key.

Why not indeed? So armed with the power of chemistry and a laser, let's do this.

First off, you need some manganese sulfate. 3 taps in Taobao and it's delivered.

Next, you need some titanium. I got some 0.2 mm sheets.

Now, time to cut them to size.

Now we have the blanks

Now that that is settled, let's set up our anodizing tank.

Our target goes on the left, the positive pole.

Let it go for about 7 minutes at ~30 volts.

Pull it out, dry it off and it's a nice dark black.

Now let's see if we can laser some lettering on it.

Wellllll it's looking pretty punk. Possibly because the metal is too thin actually. 0.2 mm seems a bit on the flimsy side. Also, will have to dial the laser back a mite, as it's blasting through the other side heat-wise and de-blackening it. BUT it's a start 😁

So goes my Saturday night 🤓