USC · Week 3

VEX IQ Slime Robot

A VEX IQ mechanism that uses gravity-fed cups and a motorized mixer to combine slime ingredients.

WhenSummer 2026
My roleIndependent mechanism design and build
StatusMixing mechanism demonstrated
The VEX IQ slime-mixing robot and its cup mechanism
Original project photograph

The goal

Dispense and mix slime ingredients with a VEX IQ mechanism.

My work

Independent design and construction of the cup tower and mixer.

Hardest problem

Coordinating gravity-fed ingredient transfer with motorized mixing.

Result so far

The dispensing and mixing mechanism was demonstrated.

The project.

I independently built the VEX IQ slime robot to combine glue and a polymer mixture. The mechanism brought together stacked motors, a tower of cups that intentionally tipped to transfer ingredients by gravity, and an L-shaped dowel mixer.

Dowel mixer

An L-shaped dowel mixed ingredients in the final cup.

Dispense + mix

Intentional cup tipping transferred ingredients by gravity into the mixing arrangement.

Engineering decisions

How it came together.

Use gravity to handle the ingredients

The robot used stacked motors and cups arranged in a tower. Tipping the cups intentionally moved the ingredients through the arrangement by gravity. The dispensing mechanism connected the robot's motion with the path of the materials.

Bring the ingredients and mixer together

The final arrangement used an L-shaped dowel to mix the glue and polymer mixture in a cup. The demonstration shows how the robot's mechanism connects dispensing and mixing in one task.

Mechanism

How the parts work together.

Ingredient handling

Dispense with gravity-fed cups

Use a stacked-motor arrangement and intentionally tipping cups to move ingredients through the mechanism.

Mixing

Mix with an L-shaped dowel

Combine ingredient handling with the dowel mixer in the final cup.

Project photographs

A look at the build.

Explore the hardware, design views, and development stages.

Demonstrations

See the project
in action.

Original recordings from the USC project documentation.

Play the recordings here, or open them in a separate tab.

Skills developed

VEX IQMechanism designPrototypingRobot integrationIndependent project work
Team project documentation

Project demonstration

Original project recordingOpen original video ↗