Aprios Insights | Expert Perspectives on Manufacturing Innovation

Power of Carbon DLS in Rapid Prototyping

Written by Nick Erickson | Oct 17, 2025 1:15:00 PM

In the modern product development landscape, speed and agility are not just advantages; they are necessities. The ability to quickly move from a digital concept to a physical object for testing and feedback is the cornerstone of rapid prototyping. This crucial phase allows engineering teams to validate designs, mitigate risks, and refine products before committing to expensive production tooling. While many manufacturing methods can create prototypes, Carbon Digital Light Synthesis (DLS) technology has elevated the process, transforming it from a simple form-and-fit check into a comprehensive stage of functional validation.

This advanced approach to additive manufacturing services provides an unmatched combination of speed, precision, and material diversity. For engineers, particularly those in the demanding medical device sector, this means the ability to create prototypes that not only look like the final product but also perform like it, dramatically accelerating the path to innovation.

What Is Carbon Digital Light Synthesis?

Carbon Digital Light Synthesis (DLS) is a breakthrough additive manufacturing technology that utilizes three core elements to build parts: a digital light projector, oxygen-permeable optics, and a broad portfolio of programmable liquid resins. The process works by projecting a sequence of UV images through an oxygen-permeable window into a bath of resin. The UV light causes the resin to solidify, or cure, while a thin, persistent layer of oxygen at the window's surface prevents the part from sticking to it.

This continuous liquid interface production allows the part to be drawn from the resin without the discrete layering steps seen in many other 3D printing methods. The result is a process that is exceptionally fast and produces parts with a smooth, high-quality surface finish. More importantly, it creates components that are isotropic, meaning they possess consistent mechanical properties in all directions, a vital characteristic for functional testing.

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How Does Carbon DLS Accelerate the Iterative Design Process?

The primary advantage of using Carbon DLS for rapid prototyping is the dramatic compression of the iterative design cycle. In a traditional development workflow, producing a single high-fidelity prototype via a method like CNC machining could take weeks. In contrast, Carbon DLS can produce a comparable part in a matter of hours or days.

This speed fundamentally changes the dynamic of product development. Instead of cautiously planning a limited number of iterations, engineering teams can adopt a more agile approach. A typical cycle looks like this:

  1. An engineer creates or modifies a digital design file.
  2. The file is sent directly to the Carbon DLS Prototyping system, which begins building the part almost immediately without any need for tooling.
  3. A functional, high-resolution prototype is ready for testing in a fraction of the time of traditional methods.
  4. The team gathers feedback from physical testing and evaluation.
  5. The design is refined based on this feedback, and the cycle begins again.

By shrinking this loop from weeks to days, teams can conduct more iterations, explore more design possibilities, and resolve potential issues early in the process. This leads to a more optimized and reliable final product while significantly shortening the overall project timeline.

Can Prototypes from Carbon DLS Be Used for Functional Testing?

A prototype is only as valuable as the data it helps generate. This is where Carbon DLS truly distinguishes itself from many other rapid prototyping services. The combination of production-grade materials and high-precision printing allows for the creation of prototypes that can withstand the rigors of real-world functional testing.

Achieving Production-Part Properties

Carbon DLS offers a wide spectrum of materials, from rigid and durable urethanes to flexible and tear-resistant elastomers. These resins are engineered to produce parts with mechanical properties, such as tensile strength and heat deflection temperature, that are comparable to those of common injection-molded plastics. Because the parts are isotropic, they behave predictably under load, making them reliable surrogates for final production parts in mechanical and performance testing.

Ensuring High Fidelity and Accuracy

For a prototype to be useful for testing fit and assembly, it must be dimensionally accurate. Carbon DLS excels at producing parts with fine features and tight tolerances. This high level of precision is indispensable for medical device prototyping, where the exact fit of components can be directly related to the device's safety and efficacy. Engineers can test assemblies with confidence, knowing the prototype accurately represents the intended design.

Bring your next product to life with high-fidelity, functional prototypes — talk to our additive manufacturing experts.


What Design Advantages Does This Technology Unlock?

Beyond speed and material properties, Carbon DLS liberates engineers from the constraints of traditional manufacturing methods. This design freedom encourages innovation and often leads to better-performing products.

The technology’s ability to produce complex geometries, internal lattices, and consolidated parts means engineers can Design for Additive Manufacturing (DfAM) and optimal function rather than for manufacturability. This capability is made economically feasible by the tool-less nature of the process. Without the need to create expensive molds or fixtures for each iteration, the cost of experimenting with a complex, innovative design is drastically reduced. This lowers the financial barrier to entry, making advanced rapid prototyping accessible even for startups and small businesses, while allowing larger organizations to minimize material waste and development costs.

Conclusion

Carbon DLS additive manufacturing solutions are essential for Rapid Prototyping Services due to their speed, precision, material versatility, cost-effectiveness, and design flexibility. Its broad range of applications—from 3D Printed Prototypes to injection molding tooling—makes it a crucial tool for design for manufacturing solutions and modern product development.

Explore the benefits of Carbon DLS for your rapid prototyping needs and contact Aprios for expert guidance and support in leveraging this cutting-edge technology.