Quote from Flaxbeard
How do I craft the wand of equal trade? I put in the 3 vis shards and the wand of the apprentice in the right spots... Do the 14 permutatio and the 4 instrumentum matter in the thaumopedia?
Yes,they do matter. You'll need a Crucible, in which to put the required aspects in, and an Arcane Worktable near it, to construct it.
There are many other recipes that will require Aspects to be constructed.