Finding Your Robot's Track Width and Wheelbase – VEX Library

When configuring a robot without a Gyro or Inertial Sensor, you will need to measure your robot’s track width and wheelbase. This is important to ensure that your robot turns accurately.

VEXcode IQ Devices window with the Drivetrain Settings menu shown. The Track Width and Wheelbase options are highlighted. Each option has a field for a number and then a dropdown menu to select the unit, mm or inches.

How to Measure Track Width

Diagram of a Track Width measurement, with a line that indicates that the distance is measured between the robot's left wheels' center point and its right wheels' center point. This measures the drivetrain's horizontal length.

Track width is the distance between the robot’s right wheels’ center point and the robot’s left wheels’ center point.

The wider the track width, the more revolutions the wheels on each side need to make in opposite directions per degree of turn.

How to Measure Wheelbase

Diagram of a Track Width measurement, with a line that indicates that the distance is measured between the robot's front wheels' drive shaft and its back wheels' drive shaft. This measures the drivetrain's vertical length.

Wheelbase is the distance between the drive shafts of the two drive wheels on the robot’s side.