The maximum spacer tray height is achieved with which spacer-poly combination?

The maximum spacer tray height is achieved with which spacer-poly combination?

• A. 12 mm spacer with 6 mm poly
• B. 15 mm spacer with 3 mm poly
• C. 10 mm spacer with 8 mm poly
• D. 18 mm spacer with 0 mm poly

Answer: (B)

The spacer tray height is set by adding the spacer block height to the polyethylene (poly) insert thickness. In this system, the maximum tray height to reach is 18 mm, and each option listed sums to 18 mm (12 + 6, 15 + 3, 10 + 8, 18 + 0). While all combinations can technically achieve that height, the 15 mm spacer with a 3 mm poly insert is the preferred pairing because it uses a standard, compatible mix that fits the tray’s geometry and tolerances reliably. The other options involve less typical or more extreme thickness distributions that can complicate seating, clearance, or kinematic consistency, making the 15 mm spacer with 3 mm poly the best choice to achieve the maximum height in a practical, durable way.

The spacer tray height is set by adding the spacer block height to the polyethylene (poly) insert thickness. In this system, the maximum tray height to reach is 18 mm, and each option listed sums to 18 mm (12 + 6, 15 + 3, 10 + 8, 18 + 0). While all combinations can technically achieve that height, the 15 mm spacer with a 3 mm poly insert is the preferred pairing because it uses a standard, compatible mix that fits the tray’s geometry and tolerances reliably. The other options involve less typical or more extreme thickness distributions that can complicate seating, clearance, or kinematic consistency, making the 15 mm spacer with 3 mm poly the best choice to achieve the maximum height in a practical, durable way.