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Reinforce3D brings a new approach to additive manufacturing to increase the strength and stiffness of 3D printed polymer parts. CFIP (Continuous Fiber Injection Process) technology allows already printed parts to be additionally reinforced with continuous carbon fiber without the need to redesign, change the material used or modify the 3D printing process itself.

The result is significantly stronger and stiffer components that can be easily integrated into existing manufacturing workflows, and which in many applications allow metal parts to be replaced with polymer parts while maintaining mechanical reliability.

How CFIP works - strengthening from within, without compromise

Unlike conventional 3D composite technologies, Reinforce3D does not integrate reinforcement during printing, but after the part is printed. A special Reinforce3D device injects continuous carbon fibre into the internal structure of the part, precisely following a digitally defined trajectory and at the points with the highest mechanical load.

With this post-processing approach, the fundamental advantage of CFIP technology applies: first you design and print the part purely according to geometry and function - and only then do you target reinforcement where it is really needed.

Reinforce3D uses design verification software that checks the feasibility of the designed filament paths with respect to the specific technology. Based on this simulation, the reinforcement process itself can then be optimized, in particular the filament embedding parameters such as speed and resin dosage, which contributes to high repeatability and production stability.

At the same time, Reinforce3D has its own material model for composite reinforcement, which allows the structure of the optimized part to be precisely defined and used in advanced simulation tasks, such as FEM analyses or other computational methods.

Key benefits of Reinforce3D CFIP technology

• Significant increase in strength and stiffness (orders of magnitude over unreinforced parts) with minimal weight increase
• No need to redesign the part or change the material or 3D printing technology
• Compatibility with common industrial polymer 3D printers (MJF, FDM/FFF, DLP, SLA, SLS, SLM, MoldJet, etc.
• Targeted reinforcement only in critical areas - without unnecessary weight and material increase throughout the part
• Preservation of internal structures, cavities and design freedom
• Suitable for functional and mass production, not only for prototypes
• Possibility to replace metal parts with polymer parts while maintaining mechanical safety

CFIP acts as a performance post-process layer on top of existing 3D printing - easy to integrate but with a significant impact on the mechanical properties of the part.

Industrial applications

Reinforce3D technology is designed for industrial applications requiring increased strength, stiffness and structural integrity while maintaining low weight. It is typically used in the automotive industry for functional parts and assembly fixtures, in industrial tooling for increased durability and mechanical strength, in robotics and automation for lightweight load-bearing structures, in UAV (unmanned aerial vehicle) designs where strength-to-weight ratio is key, and in electronics for parts with well-defined mechanical properties. The technology is also suitable for high-performance applications where conventional polymer 3D printing no longer achieves the required mechanical parameters.