Building Robots With Lego Mindstorms: The Ultim... Page

: The predecessor to the EV3, which introduced more advanced sensor and motor connections.

: Small pieces used to keep axles from sliding out of place. ⚙️ Movement & Sensing Components Building Robots With Lego Mindstorms: The Ultim...

: These form the rigid chassis of the robot. Beams in the EV3 kit can be as long as 15 holes. : The predecessor to the EV3, which introduced

The most critical "proper piece" is the programmable microcomputer that controls your robot's actions. EV3 Intelligent Brick Go to product viewer dialog for this item. Beams in the EV3 kit can be as long as 15 holes

: Various "proper pieces" like touch, light, ultrasonic (for distance), and gyro sensors allow your robot to interact with its environment.

For the physical body of the robot, the authors emphasize moving beyond basic bricks to specific Technic elements for stability:

: Measured by the number of beam holes they span (e.g., 3-length or 5-length axles), these are used to connect wheels and gears.