Automated Cake Decoration: Custom Design of Food Products

Anyone who has ever decorated a cake by hand knows the effort involved: even a simple pattern takes time. And reproducing it at scale seems almost impossible. That is exactly where US startup Beehex comes in. The company has set out to fully automate individual cake decoration, revolutionizing the shopping experience in American supermarkets.

In the United States, frosting has always been an integral part of cake culture: bold colors, elaborate patterns, and personal messages are a must at birthdays, weddings, and holidays. The market is enormous and until now, almost entirely dependent on manual labor.

Beehex has developed a machine that takes over precisely this work: fully automated, reproducible, and flexible enough for daily use in any supermarket. The company originated as a NASA spin-off, where it initially worked on technologies for 3D food printing. Building on that expertise, Beehex consistently expanded its portfolio to include cake design.

What sounds like a creative project is technically highly complex. Cakes are anything but standardized objects: they vary in diameter, height, and weight and their surfaces are soft, uneven, and often far from flat. A machine expected to operate reliably across all these variations requires a 3D sensing solution that is both precise and robust.

“We chose to work with AT because the varying surface characteristics of the cakes we decorate place extremely demanding requirements on our system which are requirements that not every component manufacturer can meet,” explains Anjan Contractor, CEO of Beehex. “AT offers a 3D solution with its MCS that is compatible with our data evaluation software and flexible enough for our application.”

What was needed, therefore, was a sensor fast, accurate, and reliable enough to respond to changing cake geometries in real time while also being robust enough to operate continuously in the demanding day-to-day environment of a supermarket.

For these requirements, Beehex turned to the 3070 MCS laser profile sensor from AT Sensors. The MCS 3070 is based on AT’s proprietary WARP technology (Widely Advanced Rapid Profiling) which is a custom-developed sensor chip offering profile speeds of up to 38 kHz and 3,072 points per profile, currently the world’s fastest 3D profiling solution.

This combination of speed and resolution is critical: it allows the Beehex system to fully capture the three-dimensional surface of any cake in milliseconds, regardless of whether the frosting is smooth, wavy, or covered with cream decorations. Based on this 3D data, the system then controls the print head with such precision that the desired design is applied to the cake to the millimeter. “Our intention was to launch a 3D laser profiler that would be truly groundbreaking in terms of innovation and that is exactly what we achieved with the C6 series. The MCS 3070 3D laser profilers are unique in their combination of resolution and speed, opening up entirely new horizons in 3D machine vision”, says Gretchen Alper, Business Director NA from AT-Automation Technology, Inc.

Two additional features of AT’s laser profiler are worth highlighting: MultiPart enables the simultaneous output of up to ten different image characteristics. MultiPeak ensures that even highly reflective materials such as certain frostings or food colorings can be captured without disruptive reflections.

Since Americans tend to buy cakes at supermarkets rather than traditional bakeries, Beehex is targeting large food retail chains directly. The company positions itself as the go-to partner for fully automated cake customization in the supermarket environment with the goal of convincing chains like Walmart to adopt its solution. “Cakes have been incredibly popular in this country for decades and always will be. It is a particularly exciting market where there is always something new to discover and tackle”, explains Anjan Contractor, CEO of Beehex.

Eleven team members actually worked on the continuous development of the application,  including engineers who previously worked for well-known companies such as Tesla. It is the steep learning curve and the technical depth of the challenge that keep driving the team forward.

The Beehex application impressively demonstrates how 3D machine vision opens up new possibilities in unexpected fields. What has long been standard in industrial manufacturing like the precise, real-time capture of complex surfaces in three dimensions, is now finding its way into the food industry, powered by the AT laser profile sensor.

The MCS’ ability to capture even highly variable, soft, and reflective surfaces such as cake frostings is the key technological enabler: it makes possible exactly what Beehex set out to deliver: a fully automated system that operates without manual intervention, adapts flexibly to every cake, and enables virtually unlimited design variety.

In this way, the collaboration between Beehex and AT Sensors exemplifies a trend that extends far beyond the food industry: high-precision 3D sensor technology is democratizing automation making it accessible to industries and applications that have had little previous exposure to machine vision.