3D Printing Basics: From Prototyping to Production
3D printing — also known as additive manufacturing — has evolved from a prototyping tool into a full-scale production method. Its ability to create complex geometries and accelerate innovation makes it a valuable option for many industries.
How 3D Printing Works
The process begins with a digital CAD model, which is sliced into thin layers that a printer builds sequentially using materials such as plastics, resins, metal powders, or composites. This layer-by-layer approach allows for extraordinary design freedom, making it possible to create internal channels, lattice structures, and custom shapes with minimal waste. For a comprehensive overview of additive manufacturing technologies, the Additive Manufacturing Users Group (AMUG) offers valuable resources.
Summarized Overview of the 3D Printing Process
Layer-by-Layer Construction: Digital CAD models are sliced into layers, then printed using materials such as:
Plastics (PLA, ABS, nylon)
Resins
Metals (titanium, stainless steel, aluminum)
Composites
Rapid Prototyping: Designers can test and refine concepts quickly without expensive tooling.
Customization: 3D printing excels at producing unique or complex shapes that traditional methods struggle with.
Applications Across Modern Industries
3D printing has expanded far beyond prototyping and is now used in full-scale production across industries such as aerospace, healthcare, automotive, and consumer goods. In healthcare, for example, additive manufacturing enables the creation of custom implants, prosthetics, and surgical guides tailored to individual patients. In aerospace, lightweight printed components help reduce fuel consumption and improve performance. Consumer brands use 3D printing to produce personalized products and small-batch runs without the need for expensive tooling. For industry-specific case studies, the National Institute of Standards and Technology (NIST) provides helpful insights.
How Tandem Global Helps Buyers Choose the Right 3D Printing Partner
While 3D printing offers significant advantages in speed, customization, and design flexibility, it also has limitations. Material options, while expanding, are still narrower than those available in traditional manufacturing. Surface finishes may require post‑processing, and per‑unit costs can be higher for large production volumes. This makes choosing the right supplier essential — and Tandem Global helps buyers do exactly that. The platform connects buyers with vetted additive manufacturing partners who specialize in the right technologies, whether FDM, SLA, SLS, DMLS, or composite printing. Buyers can compare suppliers based on materials, equipment, tolerances, finishing capabilities, and past project experience, ensuring they select a partner who can deliver both the technical performance and cost efficiency their project requires. For a deeper look at the economics of additive manufacturing, the MIT Technology Review provides helpful analysis.
Advantages of 3D Printing
Faster design-to-market cycles
No need for molds or tooling
Reduced waste
High design flexibility
