Large Scale Additive Manufacturing redefining Yacht Manufacturing

Additive manufacturing is driving a transformation across air, land, and sea travel. While the aerospace and automotive industries have already embraced this technology to accelerate product development and improve component efficiency, its implementation is now becoming widespread in various companies within these sectors. However, the marine and maritime industries have been slower to adopt additive manufacturing, but a shift is underway, thanks to innovative companies in this space and Large Scale Additive Manufacturing .

Caracol, an Italian specialist in additive manufacturing. Caracol is utilizing its cutting-edge large-format 3D printing technology to lead the way in marine 3D printing applications. Their Heron AM system is proving to be a game-changer in creating more sustainable, efficient, and customized structures for water vessels, including luxurious superyachts.

With the progress being made by maritime players and additive manufacturing companies, the industry is witnessing the profound impact of 3D printing on the marine industry. This technology has impact on water vessels designed, manufactured, and operated, opening up new possibilities.

Initial Years of Additive Manufacturing in Maritine Applications

Over the past few years, there has been a growing fascination with additive manufacturing’s potential in the maritime and marine sectors. Major players in the industrial maritime sphere are actively exploring and adopting this technology for spare part production and structural repairs. By incorporating AM, maintenance processes for large ships can be accelerated, leading to minimized downtimes and smoother logistics operations.

The marine sector, which includes sailboats, racing boats, and yachts, has also warmly embraced 3D printing. Within this domain, we have witnessed numerous instances of AM’s application, such as the creation of large-scale molds for yacht structures and the direct production of lightweight components for racing boats. Moreover, 3D printing has enabled the customization of yacht parts, including large superstructures.

It is intriguing to note that additive manufacturing seamlessly aligns with several other trends prevalent in the marine industry. These trends include the utilization of carbon fiber-reinforced polymers (CFRP), the exploration of sustainable materials, and the adoption of more efficient energy systems, like hydrogen fuel cells. All of these developments are propelling the industry forward in its quest to manufacture faster, higher-performing watercraft while also fostering greater sustainability. The convergence of these innovations promises a brighter and more eco-conscious future for maritime and marine applications.

Role of Large Scale Additive Manufacturing (LSAM)

Large-format additive manufacturing (LFAM) has emerged as a pivotal force driving advancements in marine 3D printing applications, surpassing other technologies in its significance. Given the substantial size requirements of boats, especially larger vessels, the capability to print on a large scale becomes indispensable. Beyond its sheer size capacity, LFAM offers several other advantages in the marine sector, which are as follows:

• Complex Component Production: LFAM facilitates the creation of intricate components that are optimized for both weight and performance, ensuring superior functionality.
• Agile Customization: The agile nature of LFAM allows for scalable and cost-efficient part customization, catering to specific requirements without compromising on quality.
• Streamlined Assemblies: Large assemblies can be consolidated into single-piece parts through LFAM, thereby reducing post-processing and assembly steps, leading to enhanced efficiency.
• Accelerated Production: LFAM expedites production schedules by directly printing parts, eliminating the need for expensive tools or molds, thus reducing time and costs.
• Material Compatibility: LFAM supports a wide range of durable and marine-ready materials, including sustainable options like recycled polypropylene with glass fiber reinforcement, promoting environmental responsibility.

As a result of these benefits, LFAM finds extensive usage in various marine applications. It is employed in the production of racing boat parts, meticulously engineered to optimize weight and speed. Moreover, LFAM contributes to the creation of composite hulls or hull molds and plays a significant role in fabricating customized luxury yacht structures that cater to specific client preferences. The technology’s suitability for these areas is enhanced by its ability to efficiently handle small-batch production needs. The adoption of LFAM in the marine industry continues to push the boundaries of innovation and craftsmanship.

Caracol’s Heron AM platform stands out prominently among LFAM technologies. Developed entirely in-house by the Caracol team, this LFAM solution employs a 6-axis robotic arm equipped with a compact extruder. Using polymer or composite pellet materials, the system can precisely and rapidly deposit material, enabling the construction of large-scale structures. What sets the Heron AM system apart is its adaptability; it can be customized to suit a diverse range of project requirements and shop environments.

The combination of Caracol’s Heron AM platform and its robust materials, such as recycled PP and ABS + CF or GF, has proven immensely successful in marine applications. The technology has been effectively employed to manufacture significant marine components, including boat tooling, prototypes, and end-use superstructures. Numerous international enterprises, Tier 1, and Tier 2 OEMs have leveraged this technology to advance their marine projects, attesting to its efficiency and reliability.

Heron AM and reduction in lead times

Caracol has directed its attention primarily towards the yachting industry, reaping the benefits of LFAM, which include enhanced design freedom, customization options, improved fuel efficiency, shorter lead times, and cost optimization. In the luxury market of yacht and superyacht production, where bespoke designs are highly valued, AM has proven to be a perfect match. It enables luxury vessels to effortlessly incorporate one-of-a-kind fittings and superstructures that precisely mirror the client’s individual preferences, elevating yacht performance and overall appeal.

This Caracol case study perfectly exemplifies the opportunities and advantages presented by its Heron AM LFAM solution for yacht makers. Collaborating with international boatbuilders, Caracol successfully facilitated the production of lightweight 3D printed air grids on a significantly expedited timeline compared to traditional manufacturing methods.

Air grids entail intricate designs that incorporate non-flat geometries, serving the purpose of controlling air flow in specific ways. Typically, these components are manufactured using a labor-intensive lamination approach, involving molds and various fiberglass or metal sheet working processes like laser cutting, bending, and machining. This multistep process can take up to 10 weeks to yield the final product.

Given the complexity of superstructure design and the limitations of conventional production methods, air grids emerge as an ideal use case for LFAM, particularly Caracol’s Heron AM solution. The robotic LFAM system employed by the company is capable of printing at various angles, including 45°, and adeptly fabricates intricate, hollow structures with remarkable ease. This advanced technology has revolutionized the production of air grids, streamlining the process and significantly reducing lead times for enhanced efficiency.

A sea-worthy technology

Undoubtedly, with LFAM specialists like Caracol actively collaborating with customers in the maritime and marine industries, the widespread adoption of 3D printing for boat production is inevitable. The close partnership between technology providers and industry players ensures that the benefits and potential of 3D printing become increasingly apparent and accessible to all sectors, including racing boats, cruise ships, and superyachts. As this collaboration continues to flourish, 3D printing will gradually transition from being an innovative approach to becoming a standard and integral part of boat manufacturing processes. The future holds great promise for the normalization of 3D printing in the marine industry, revolutionizing the way boats are designed, built, and operated.

Caracol a specialist in  Robotic Large Scale Additive Manufacturing (LSAM) is joining the upcoming AM Conclave event, as one of the premium sponsor. The company plans to showcase their cutting edge technology at the event for wide range of industries.