Vex Robotics Design System's Inventor's Guide

Gear Kit
Gear KitThis kit contains additional gears so you will always have the right combination available to ensure you can achieve the desired balance of torque, speed, and direction. All the parts included in this kit were also included in the Starter Kit, with the exception of the 84-tooth gear, which is just like the other gears, except with more teeth, which gives you access to even higher (or lower) gear ratios.

To expand your inventing possibilities, the 60- and 84-toothgears have extra mounting holes. These mounting holes can be used for attaching metal bars or parts to these gears when using them as part of a turntable system, or other similar designs. Consult your Vex Inventor’s Guide for building tips and examples on how to use gears to change the speed/torque balance and direction of your robot’s drive train spin.

Motor Kit
Motor and four-wheel drive (4WD) Kit
As explained in the Motion Subsystem section of the Inventor’s Guide, standard motors convert electrical energy into mechanical energy by spinning either forward or backward at a controlled speed.

Now that you have four motors, your robot no longer needs to rely on a single motor to turn both the front and rear wheels on the same side of the robot. You can now use one motor for each wheel, and have twice as much torque available for your robot to tackle increasingly difficult terrain.

The Vex Robot Micro-Controller already has the ability to support this four-wheel drive mode. All you need to do is place a jumper clip on the appropriate Analog/Digital port, and your robot will work with all four motors. See Appendix F in the original Vex Starter Kit Inventor's Guide for details.

Servomotor Kit
As explained in the Motion Subsystem section of the Inventor’s Guide, servomotors are a type of motor that can be directed to turn to face a specifi c direction, rather than just spin forward or backward.

Wheel Kit
This kit contains additional wheels that will help your robot get a better grip on any situation. All the parts included in this kit were also included in your Vex Starter Kit, so consult the Vex Inventor’s Guide for building tips and examples on how to use them.

MOTION SUBSYSTEM INVENTORY