3D Printing vs Injection Molding: Full Cost & Production Analysis
TL;DR: 3D printing wins for one-offs, prototypes, customization, and production runs up to roughly 50–1,000 units, depending on part size and complexity. Injection molding wins for mass production — the break-even point is usually in the hundreds-to-thousands of units, after which molding’s near-zero per-part cost dominates. Printing is a flexible low-volume tool; molding is a capital investment for scale. Quick Answer: When Does Printing Beat Molding? The decisive factors are volume, unit cost, and tooling investment: ...