(section: 2 / paragraph: a / line: 3)
No, "0.9 m in any dimension" refers only to width, depth, and height.
(section: 2 / paragraph: c / line: 1)
No, throughout the rules the mass is referred to as singular. Teams may impound only one mass.
(section: 2 / paragraph: c / sub-paragraph: N/A / line: 1)
Please do not use lead. First because it is not a safe material to be working with and second, simply because many, many Event Supervisor just would not allow it. There are a number of safer materials available out there that are close to the density of lead.
(section: 2 / paragraph: e / line: 2)
No. Rigid is defined as "stiff", "hard", "unable to bend or be forced out of shape; not flexible". A flexible chassis is able to bend and therefore can easily absorb the energy of pressure from the egg hitting the wall. The whole purpose of a rigid backstop is to ensure that if the egg hits the terminal barrier with enough force it will break. The purpose of the entire event is to see how close you can get to the wall as fast as possible without breaking the egg. The purpose is not to see how we can circumvent breaking the egg by using essentially a "crumple zone," which is exactly what would happen with a backstop attached to a flexible chassis. The term "rigid" goes beyond just the backstop. You can't maintain rigidity if you attach something that is rigid to something that is not rigid. See rule 2.e.line 6
(section: 2 / paragraph: e / line: 5)
Generally, no. Rigid is defined as "stiff", "hard", "unable to bend or be forced out of shape; not flexible". A block of balsa tends to be less dense and can easily absorb the energy of pressure from the egg. Please have an alternative backstop prepared in case your local tournament event supervisor does not consider balsa as a rigid material. This would have to be replaced during the team's 8 minutes.
(section: 2 / paragraph: h / line: 1)
Yes, all of the wheels have to be in contact with the floor in the ready to run position. No, they cannot rest on a (thin or thick) piece of plywood. If they were not on the floor in the ready-to-run configuration, they would violate Rule 2.h. upon touching the floor during the run and the team would receive a construction violation.
(section: 2 / paragraph: i / line: 2,3)
It may be a separate piece but when placed within the Scrambler it must fit in the 0.90 size parameter.
(section: 4 / paragraph: j / line: 2)
A second egg will be provided, the team will be allowed only one run, and a competition violation will be assessed to that run even if the second egg does not break.
(section: 4 / paragraph: k / sub-paragraph: 3 / line: 3)
There are no Tiers in Scrambler this year. The runs are scored separately. The better of the two Run Scores is used for the Final Score.