Step 20: Track piece #17
What makes the Titanic and the Toronto Maple Leafs so similar?
1-3: Build this big 'ol panel.
4-6: Build its counterpart.
7-9: Connect the two.
10-11: Build this dropping track piece. You should be able to build this one without much instruction by now.
12: Add it on on top like so.
13-16: Add it onto the main machine.