When Motion Becomes Art: Ultra Motion Actuators in Kinetic Sculptures

Kinetic art installations are not the first application most people associate with high-end integrated servo actuators. Ultra Motion’s core work is in demanding environments: defense, aerospace, marine, industrial, and other mission-critical systems where reliability is not optional. But that is exactly what makes kinetic art such a compelling proof point.
A permanent public kinetic sculpture may look simple, fluid, and organic from the outside. Underneath, it is a serious electromechanical system. It will operate for long hours, cycle repeatedly in front of visitors, coordinate dozens or hundreds of axes of motion, and tolerate very little downtime.

Projects by Volvox Labs / VVOX, including the Tetra kinetic sculpture in New York City and the Momentum installation at Microsoft Theater / LA Live, show how linear actuator technology can help turn digital choreography into physical presence.

Tetra: 300 Actuators in Motion

Spanning nearly 120 feet in New York City, Tetra is a large-scale kinetic sculpture incorporating 300 individually controlled Ultra Motion linear actuators and 150 custom LED lights. Created for Xandr in collaboration with Gensler, the installation transforms a geometric architectural feature into a dynamic, interactive experience.

The sculpture consists of hundreds of interconnected elements that move in coordinated patterns, creating flowing waves and subtle transformations across its expansive surface. Its motion can also respond to people moving through the surrounding space, bringing an organic quality to an otherwise rigid structure.

Behind the visual experience is a complex electromechanical system. Each of the 300 actuators provides independently controlled linear motion, allowing Volvox Labs to translate intricate digital choreography into precise physical movement. Coordinating motion on this scale demands consistent actuator performance, reliable positioning, and seamless integration across hundreds of moving components.

Since its original installation in 2019, Tetra has remained in continuous service, with Ultra Motion actuators providing the dependable, repeatable motion necessary to sustain this permanent public artwork.

Momentum: Architecture That Responds

At Microsoft Theater / LA Live in Los Angeles, Volvox Labs created Momentum, an interactive kinetic wall that transforms a static architectural surface into a living, responsive sculpture.

The installation incorporates 80 Ultra Motion Servo Cylinder actuators, 160 custom-milled wooden tiles, and 10 microcontrollers. Working together, these components create coordinated waves of movement across the wall, responding to human activity and producing the impression of a surface that breathes and moves organically.

Each Servo Cylinder provides precise, controlled movement to its associated mechanical assembly. By integrating the motor, position feedback, and control electronics within a compact actuator, Ultra Motion’s technology helped enable a scalable system of independently controlled motion elements.

Beyond the initial engineering and installation challenges, Momentum demonstrates the importance of long-term durability in permanent kinetic architecture. The actuators must repeatedly execute coordinated movements while maintaining consistent performance across the entire installation.

Momentum has continued operating since its original commissioning in 2017, demonstrating the durability and reliability of Ultra Motion’s integrated servo technology through years of service.

The Engineering Behind the Experience

Although kinetic sculpture is far removed from traditional aerospace and defense applications, the underlying engineering requirements are remarkably similar: precision, repeatability, compact integration, and reliable operation over extended service lives.

With hundreds of actuators working together, even small differences in performance can affect the overall experience. Ultra Motion’s integrated servo actuators simplify system design by combining motors, position feedback, and control electronics into compact, self-contained assemblies.

The continued operation of both Tetra and Momentum demonstrates how precision electromechanical technology can provide dependable motion well beyond conventional industrial applications.

From spacecraft and marine systems to interactive architecture, Ultra Motion’s actuators help turn complex motion requirements into reliable, real-world performance.