Understanding Rapid Prototyping
Rapid prototyping is a group of techniques used to quickly fabricate a scale model of a physical part or assembly using three-dimensional computer aided design (CAD) data. Construction of the part or assembly is usually done using 3D printing or "additive layer manufacturing" technology.
The rapid prototyping process involves three simple steps:
- Prototyping
- Feedback
- Revision
Initially, the team creates one or more rapid prototypes which are visual representations of the design specifications. These prototypes can vary in terms of fidelity, being either low-fidelity or high-fidelity, and may be interactive or non-interactive. The prototype is then shared with stakeholders and end-users for evaluation of both design and usability before feedback is provided. Following this, prototypes are revised based on the feedback received.
Applications and Benefits
Rapid prototyping technology serves needs in several sectors such as automotive, aerospace, medical, and architecture. It involves creating a solid model that replicates the assembly or part and subjecting it to tests for efficacy to perfect the design or product before full-scale production.
Advantages of rapid prototyping include the ability to communicate ideas effectively. A prototype is much easier to understand compared to a written specification and ensures everyone shares a common understanding of the product’s desired look and feel. This reduces risk and leads to better feedback.
Process and Reiteration
You can use rapid 3D prototyping at any step of your product development process and repeat it as many times as necessary. This agility makes the approach suitable for optimizing characteristics like shape, size, and overall usability at every stage of development.
The fidelity of a prototype may vary according to the project requirements. Lower fidelity prototypes loosely match the final product to test overall fit or function, while higher fidelity prototypes more closely resemble the final product to evaluate usability and workflows.
Rapid prototyping is recognized for its efficiency and speed, allowing for quick iterations focused on delivering a product that meets user satisfaction.