The student assembles the arm.
text: This?
text: *unintelligible* Yes, that.
text: And piece you're going to mount onto the mounting peg.
text: You're actually going to want  that piece to be pointed down, the piece that's rotating
text: Yeah.
text: And then it's going to be that, I don't know how to explain it, that thing yeah okay, and then above that there's like a thing. *unintelligible*