LEGO MINDSTORMS Robots User Manual

Figure 2-2.
Some beams, plates, and shafts and their lengths
Gears, for the most part, are described by the number of teeth they have. A 24t gear, for example, has 24 teeth. (The "t" stands for "teeth.") Figure 2-3 shows a photograph of the various types of
gears that come with the RIS kit.
There are two types of bushings in the RIS kit: regular and half-size. Both fit on shafts and are used for securing a shaft in place or for spacing. Figure 2-4 shows the bushings.
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Figure 2-3.
Gears
Figure 2-4.
Full and half-size bushings
Finally, the term wire brick refers to the part shown in Figure 2-5. This piece is used to make an electrical connection between a sensor or motor and the RCX.

LEGO MINDSTORMS Robots Specifications

General

Product Line	LEGO MINDSTORMS
Category	Toy
Age Range	10+
Batteries Required	Yes
Memory	64 MB RAM, 16 MB Flash
Connectivity	Bluetooth, USB
Sensors	Touch, Color, Gyro
Battery Type	AA
Interactive Features	Programmable, Remote Control
App Compatibility	iOS, Android
Processor	ARM9
Pieces Count	601
Battery Count	6
App Name	LEGO MINDSTORMS EV3 Programmer App