Each group needs a full set of the following construction materials for one pulley system:

• 1 platform 12" x 20" x ¼" thick (for the mounting template; see Pulley Set-Up Assembly Instructions); use basswood or Plexiglas® or other durable material
• 1 platform 9" x 9" x ¼" thick (for the platform to hold the load; see Pulley Set-Up Assembly Instructions); use basswood or Plexiglas® or other durable material
• 2 curved metal screw hooks (3/16")
• 1 screw (1-½" L x 3/16")
• 6 nuts (3/16")
• package of cable/zip ties (assorted colors)
• power drill
• 3/16" diameter drill bit (appropriate for wood and/or Plexiglas®)
• string or high-test fishing line (such as 25-lb weight)
• 2 LEGO EV3 Intelligent Bricks (2 x $145)
• Additional LEGO Technic parts for the construction of the pulley systems (~$100)