just wrote a really long story but somehow I closed the tab FML
so heres another,
I made a titanium bracelet for my gf as a gift for valentines
tube I used was 70x4mm
had the lathe guy at work turn it down, till the outside was smooth, then he removed material from the inside till it was ~ 2mm thick, so the ID is around 65mm. its 25mm "high"
not the best job as there are some scratches on the outer side, but we build ships not jewelry.
anodizing titanium is really easy
all you need is some 9V batteries , clean water, baking soda and some copper wire and plastic bowl or something like that.
copper wire is like a lasso in the bottom of the solution and one end is connected to negative side , other wire is connected to the positive and the titanium piece
started with 8 batteries , dipped at a certain angle for 5 or so seconds , FIZZLY FIZZLY
removed 2 batteries, dipped at a certain angle and so on, till I used 2 , this gives a golden colour and a smaller V will not overanodize the rest.
pics
this is a test to see which colours appear with x voltage and so you can understand how I did it.
this is the braclet from different angles
I hope she likes it