What's with the big machine?

Hint 1 of 7:

One important part is missing.

Hint 2 of 7:

There is a spoked wheel on the left side, but not the right.  When you find
one, put it on the spoke.

Hint 3 of 7:

Its most important feature is the funnel on top.

Hint 4 of 7:

You will need to fill it with some kind of liquid.

Hint 5 of 7:

That liquid is available in the outer ring.

Hint 6 of 7:

Try pouring the lava in the top to get some extra beads.