I Made a 100MPH Flying Basketball Hoop

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Across
  1. 2. In order to machine the basketball, the ball needed to be _______.
  2. 4. A _____ actuated robot was used to move the backboard because it's light and rigid.
  3. 6. This electronic part is wired to each motor to instruct them how much and how fast to rotate.
  4. 7. The hoop needs to move with ___ degrees of freedom.
Down
  1. 1. The cables create these geometric figures which allow for the backboard to be held solid.
  2. 3. Gravity causes object thrown in the air to follow _____ paths.
  3. 5. The emergency stop button engages a _____ on the pulley motor.