3D printing lets innovators move from CAD model to physical part in hours rather than weeks. The right process depends on what you need to learn from the part.
FDM is fast and inexpensive for early form and fit checks. SLA gives smooth surfaces and fine detail, useful for ergonomic studies and housings. SLS produces durable parts suitable for functional testing.
Metal printing is useful for complex internal geometries and small-batch functional parts, though it needs more design care and post-processing.
Combining processes is common: quick FDM iterations early, then higher-fidelity prints once the design stabilises.
