Key principles.
None vs $20-100K
CNC: no tool. Injection mold: $20-100K. Crossover above 1000-5000 parts typically.
High vs low
CNC: $20-200/part typical. Molded: $0.50-10/part typical. 5-20× ratio.
Fast vs slow
CNC: 1-3 weeks. Mold: 8-12 weeks build + parts. Total 12-16 week ramp.
Any vs molded
CNC: any geometry. Molding: requires draft, no undercuts (or slides), uniform walls.
Any solid vs plastic
CNC: any. Molding: thermoplastics primarily. Material selection narrower.
±0.025 vs ±0.1
CNC: tighter. Molding: ±0.1-0.3 mm typical. CNC for precision.
FAQ
Typically 1000-5000 parts depending on complexity. Simple geometry: lower. Complex molded geometry: higher.
Rapid injection mold (aluminum tool, 14-day): bridges between CNC prototype and steel production tool.
Real production plastics in molding (PP, ABS, PC). CNC plastic bar stock similar but not identical.
Molding: draft 1-2°, uniform walls, no undercuts (or slides). CNC: any geometry within tool reach.
Molded: very repeatable, consistent. CNC: tight tolerance, sometimes more variation.
Common: CNC prototype, molded production. Use CNC for design iteration, switch to mold for production.
Get an instant quote
Send your CAD — we reply with detailed pricing, lead time, and DFM feedback within 4 working hours.
Talk to an engineer
WhatsApp our team directly. Most messages answered within 12 minutes during work hours.
Explore all services
CNC, 3D printing, injection molding, sheet metal, casting, finishing — one quality system, one partner.
Working on a live project? Send the STEP file and the two or three features you are unsure about — an engineer replies with DFM notes and a price, usually within four working hours.
