Printing the Proof: How Prusament and 3D Printing Shape the CAIM1 Camera

In a world increasingly dominated by generative AI and hyper-realistic deepfakes, an uncomfortable question has emerged: how can we prove that what we see online actually happened?

Every day, synthetic media becomes harder to tell apart from organic footage, eroding trust in photojournalism, archival media, and everyday content creation. This very challenge sparked the creation of CAIM1 (short for Counter Artificial Intelligence Machine 1), a dedicated portable camera developed to attest the origin of images and video at the time of capture.

When the CAIM1 engineering team needed to take their complex, heat-generating internals and turn them into an ergonomic, rugged handheld camera, they turned to 3D printing, specifically, our Prusament filaments. Here is the story of how our collaboration came to life and why 3D printing proved to be the ultimate manufacturing method for the ingenious device.

CAIM1 camera prototype printed in Prusament PETG Noctua Beige and Noctua Brown

The Engineering Challenge: Airflow, Ergonomics, and Cryptography

Building a camera from scratch is notoriously difficult. Unlike a static desktop computer or a simple sensor box, a camera must endure outdoor elements, survive accidental drops, fit comfortably in hands of all sizes, and maintain absolute dimensional stability around its lens mount.

CAIM1 added several layers of complexity on top:

• Intense Thermal Loads: The internal edge compute unit processes 4K60 video while concurrently calculating cryptographic proof signatures not typically demanded from a regular camera. Without continuous airflow, the processors would overheat and throttle.
• A Unified Cooling Duct: To keep size, weight and power draw minimal, CAIM1 uses a single airstream. Air is drawn through front vents, routed across an alloy sensor backplate, pulled through the decoupled Noctua fan, blown across the CPU heatsinks, and expelled.
• Internal Component Density: Inside the enclosure sits a 4.3-inch touchscreen, a fully functioning Web3 hardware wallet featuring the Tropic Square TROPIC01 secure element, and a Micro Four Thirds sensor with accompanying imaging hardware pipeline.

To solve this thermal engineering challenge, the CAIM1 team turned to cooling experts Noctua and their NF-A4x10 5V PWM fan. Naturally, the Prusament in Noctua brand colors caught their eye, and we were happy to support them in celebrating the engineering ingenuity and synergy of Noctua cooling and Prusament structural integrity applied to photography devices.

However, styling considerations were not the main driver for this material decision. Traditional injection molding would have locked the design into expensive steel mould tooling before the intricate thermal engineering could be verified. With 3D printing using Prusament, the CAIM1 team is able to iterate the shell and internal ducting overnight, adjusting internal geometry by fractions of a millimeter to optimize airflow.

“Using Prusament allowed us to iterate on prototypes very quickly, and the designs change all the time when working with videographers and photographers in the field. If we need a replacement panel or receive feedback from a test device user we can slice it, and print it locally in a couple of hours to then try the new version,” explains Josh Cowell, creator of CAIM1.

Macro view of the 3D-printed cooling ‘gills’ air intakes on the CAIM1 housing

Why Prusament? Tolerances and Thermal Resilience

For an optical device, loose tolerances are unacceptable. An off-center lens mount or a shifting sensor plane ruins focal sharpness across the frame.

The CAIM1 shells are printed using Prusament PETG, finished in the iconic Noctua Beige and Noctua Brown palette, a direct nod to their thermal partners. Several key material properties made Prusament the standout choice:

• Industry-Leading ±0.02mm Diameter Tolerance: Diameter of every Prusament spool is measured with multi-axis optical laser sensors. This precision guarantees flawless flow consistency, eliminating gaps or layer swelling that could compromise dust seals or mounting tabs.
• Thermal Stability Near Hot Silicon: With processors running sustained cryptographic workloads, standard PLA would soften near the heatsink exhaust channels. Prusament PETG handles temperatures up to 68–75 °C without deforming, ensuring the internal ductwork maintains its aerodynamic profile even during long test shooting sessions.
• Increased toughness: Cameras spend their lives in the sun and on rough terrain. PETG provides the high impact strength and mechanical elasticity needed for outdoor field production prototypes.

“Myself and the team have poured an incredible amount of time and passion into making this [camera] a reality. Originally the device was designed only for a handful of enthusiasts’ personal use. To step up our game we wanted the best materials and support possible to take this concept towards the big stage. We were delighted to receive Prusa’s support for our ambition.” – Josh Cowell, creator of CAIM1.

CAIM1 chassis highlighting the Micro Four Thirds sensor behind which an Noctua NF-A4x10 5V PWM fan sits.

A Convergence of Open Hardware in Central Europe

There is something special about how this project is evolving right here in Central Europe, establishing the region as a unique powerhouse for open hardware innovation. To guarantee that CAIM1’s cryptographic attestation was genuinely trustworthy, the team refused to rely on closed, proprietary “black box” silicon. Instead, they partnered with Tropic Square, a semiconductor firm operating right alongside us here in Prague, to use their fully auditable, open-source RISC-V secure element. With Prusa Research materials securing the physical shell and Tropic Square securing the data, the foundation of the camera was sourced entirely in the Czech capital.

Having world-class thermal engineering from Noctua just across the border in Austria has fostered remarkable synergy between three innovators located so close to one another. CAIM1 is a testament to what this highly collaborative, regional ecosystem can achieve: open Czech silicon, Czech additive manufacturing, and Austrian acoustic and thermal precision, all converging into a single groundbreaking device.

What’s Next?

It’s important to highlight that while CAIM1 already functions end-to-end as a fully working device, it remains in the active development and testing phase. At Prusa3D, we love getting behind ambitious, visionary hardware projects early on, and we are thrilled to support the CAIM1 team as they iterate and dial in the production specifications.

The camera is the first revealed piece of a wider infrastructure CAIM1 is developing aimed at improving digital truth in the age of AI. The team has a small fleet of prototype devices that will continue to be showcased at upcoming events, with a batch ready for production in 2027.

If you would like more information, want to get involved, or wish to discuss early collaboration, you can contact the CAIM1 team directly through their contact details on their website at . More updates, behind-the-scenes engineering logs, and announcements will follow across their social platforms (including @CaimeraX on X and @caimera.one on Instagram). Or reach out to Josh himself over at @JoshatoshiOnX.

Happy printing!