rapidprototype

Rapid prototype refers to a preliminary version of a product or component produced quickly to explore design concepts, validate assumptions, and inform subsequent development. The goal is to test form, fit, and function early in the design process and to enable fast, iterative feedback cycles.

Methods and technologies used in rapid prototyping include additive manufacturing such as 3D printing (including fused deposition modeling, stereolithography, selective laser sintering, and multi-material approaches), subtractive manufacturing such as CNC milling, and other rapid fabrication techniques like vacuum casting and laser-cut sheet metal. Prototypes can range from low-fidelity, abstract models that emphasize geometry and ergonomics to high-fidelity, functional units that resemble the final product and can be used for user testing or pre-certification assessments. Digital tools such as CAD, CAM, and simulation software typically underpin rapid prototyping by enabling quick design changes and automatic generation of fabrication files.

In practice, rapid prototyping is part of an iterative design-build-test cycle. Early prototypes help identify usability issues, manufacturing constraints, and performance gaps, allowing teams to refine specifications before committing to tooling or full-scale production. Benefits include reduced development time, lower risk, and the ability to explore multiple concepts; drawbacks can include material and process differences from the final product, surface finish limitations, post-processing requirements, and potential overemphasis on form over underlying system behavior.

Best practices involve clearly defined prototype objectives, selecting the appropriate fidelity and fabrication method, planning iterations, involving cross-functional stakeholders, and documenting results for decision making. See also rapid prototyping in manufacturing, additive manufacturing, and design iteration.