An Introduction to Huey: the VIQRC Mix & Match Hero Bot

Each year, a Hero Bot is designed from the VEX IQ Competition Kit (2nd generation) to provide teams with a starting point to play the current VEX IQ Robotics Competition (VIQRC) game. Experienced teams are able to quickly assemble a robot to investigate the game's dynamics. New teams can use the Hero Bot to learn valuable building skills and have a robot they can customize to compete with early in the season.

Huey is the Hero Bot for 2025-2026 VIQRC Mix & Match. View this page for more information on the game and how it is played.

For game definitions used throughout this article, and even more detailed information about the game rules and scoring, view the Game Manual for VIQRC Mix & Match.

Building the Hero Bot

The Hero Bot Huey, designed for the VIQRC Mix & Match game.

You can follow build instructions to construct Huey, this season's Hero Bot, from your IQ Competition Kit (2nd gen). 

A screenshot of the Session 2 description from the Competition 101: VIQRC Mix & Match STEM Lab, showing a step from the build instructions on the right. The description on the left reads Building Your First Robot: By the end of this session, you'll have build Huey, the Hero Bot for this year's game!

For suggestions on how to break down the build within your team, look at Session 2: Building Your First Robot of the Competition 101: VIQRC Mix & Match STEM Lab Unit. This session's activities are divided into station-based exploration, so that all team members can be engaged while each stage of Huey is constructed.


Scoring Capabilities

There are many ways to score in VIQRC Mix & Match! Watch the video on this page for an overview of scoring and gameplay. Read the Game Manual for more detailed information about scoring.

An image of Huey on the Mix & Match Field, holding a red Pin in its claw, positioned above an Orange Pin prepared to create a stack.

Stacking and Clearing Pins

Huey earns points by stacking Pins on the VIQRC Mix & Match Field. Huey is able to pick up and lift Pins to stack them on top of each other. Huey can also clear Starting Pins from the sides of the Field.

Huey on the Field hold a stack of red and orange pins above the center Standoff goal, ready to score the stack on the goal.

Scoring Stacks in Goals

Positioning Stacks in the various Goals on the Field can earn additional points. Huey can lift and place Stacks in the Triangle, Square, or Floor Goals, as well as on top of the Standoff Goal.

A sample scoring image showing the beam placed on top of two multicolored stacks, with a third multicolored stack attached to the top of the beam.

Manipulating Beams

The Beams on the Field can be used as part of a multi-color Stack with Pins, and offer additional scoring opportunities. Huey can manipulate the Beams using the Claw and Lift in order to make high-point Stacks.


Design Features

Huey is meant to be a starting point for a competition robot, designed to help students, teachers, and coaches quickly build a robot to begin understanding the game. As such, Huey can be driven with the built-in Drive project on the IQ (2nd gen) Brain. It can complete some, but not all, tasks in the VIQRC Mix & Match game. 

This Hero Bot has a few key features that enable it to complete tasks in the game: 

The underside of Huey with the four omni-directional wheels highlighted.

2-Motor Drivetrain

Huey's drivetrain is powered by two motors. The drivetrain operates using a gear train to drive the four wheels on the Hero Bot. This allows Huey to move around the VIQRC Mix & Match Field effectively. 

Huey uses four omni-directional wheels to enhance the robot's multi-directional movement.

A perspective view of Huey, with the claw section highlighted.

Claw

The Claw enables Huey to grasp Pins and Beams. The Claw's structure, and additional rubber bands, allow Huey to have enough strength and tension to be able to grab and lift Pins and Beams to form Stacks. 

The Claw is attached to Huey's Lift, and uses rope from the Kit for added tension.

A rear view of Huey, with the lift mechanism highlighted.

Lift

The Lift works in tandem with the Claw of Huey. The Lift allows the Claw to slide vertically up and down in order to raise Pins and Beams, create Stacks, or move Stacks into Goals. 

The Lift uses a chain and sprocket system attached by a shaft to gears that raise and lower Linear Motion Rack Gears. 


Modifying Huey

Huey can be modified to improve its performance based on your team's strategy. For instance, the size and weight of the Beams make it difficult for Huey to move them well. You can consider modifying the Claw to grasp and move Beams more effectively.

A screenshot of the Session 5 description from the Competition 101: VIQRC Mix & Match STEM Lab. On the right Huey is shown beside several loose wheels and pin tool, and on the left the description reads Improving Your Robot: This session is all about iteration!

Look to Session 5: Improving Your Robot in the Competition 101: VIQRC Mix & Match STEM Lab for a process to help you modify the Hero Bot. This session walks through how to make small modifications, like changing the wheels on Huey, and collect data about those changes. Then you can make a data-based decision about the effectiveness of the change.

For more information, help, and tips, check out the many resources at VEX Professional Development Plus

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