Page 110 - Clawbot with Controller

Demonstrating how the Drivetrain

to Drive Blocks are Related

Have an Autopilot robot to demonstrate for the students. Introduce to students the drive
block. Read the description of the drive block in the Help. Either have VEXcode IQ Blocks
displayed in front of the classroom, or have each student group follow along at their
workstation. When discussing the descriptor and purpose of the block, ask the students if
they can identify what a Drivetrain is. Discuss with the students that a Drivetrain consists of:

 A rectangular Chassis (the structure of a mobile robot that holds wheels, motors, and/or
any other hardware used to make up a Drivetrain)

 Two Motors
 Four Wheels

 Gears transmitting Power from the Motors to all Wheels

Use Autopilot robot to show the students the parts of the Drivetrain during the discussion.
Next, gently turn one of the wheels that is connected to a motor. Show the students that
because of the gears, even though the force is being applied to one wheel, both wheels are
moving. Tell the students that instead of moving the wheels by hand, we’ll use the drive
block to program the motors to run and the wheels to turn.