The type 16 augs can be made by anyone, but you will need to do the quest appropriate for the level to make them. You get the quest in your home city from the artisane guy (use Find).
The type 17 purity+foci augs, I think you just have to scribe the book which is usually sold in pok, or it is sometimes expansion restricted. Eqtraders would have more info on the book you would need to scribe for the augs you want to make, check on that website.
Of course before you do all that, you need the tradeskill involved hopefully maxed. For the type 16 you can use tinkering, smithing or tailoring. For the type 17s, you have to use pottery.
Hope that helps, I haven't made any in a long time so bit out of touch.