Basicly for anodising you put the aluminum part into a 15-20% sulphiric acid bath with aluminum wire connected to it, and a lead terminal with aluminum wire next to it.

the aluminum part to be anodised shouldnt touch anything in the bath, except for the wire its attached to.

the aluminum you want to anodize should be connected to the positive terminal of the battery and
the lead terminal is connected to negative terminal of the battery.

once everything is setup, you turn on the current - as much of it as possible.
make sure your cables are able to carry over 8-10 amps.

after 15-20 minutes, pull out the part, dip it in the dye and voila... all those microscopic pores are filled and flushed with the dye.

you can seal the anodised aluminum part by putting it in boiling water for a while.. and thats it.

DIY at home anodising.