3D printing is everywhere, but does it really replace CNC turning? The answer: it depends. Both methods have clear strengths. Here we show you when each method makes economic sense.
The Big Comparison
| Criterion | CNC Turning | 3D Printing (Metal/SLM) |
|---|---|---|
| Tolerances | ±0.01 mm | ±0.1-0.2 mm |
| Surface | Ra 0.8 directly | Ra 6-12 (post-processing needed) |
| Unit cost at 1 pc | 50-200€ | 100-500€ |
| Unit cost at 100 pcs | 8-30€ | 80-400€ |
Best of Both Worlds: Hybrid Approach
3D print the prototype (fast, geometrically free), then CNC manufacture the series (cheap, precise, reproducible). This is exactly where we support you, from first prototype to cost-optimized series production.
Frequently Asked Questions
Is 3D printing cheaper than CNC turning?
Only for 1-3 highly complex prototypes. From 5 pieces, CNC is significantly cheaper: 8-30€/pc vs. 80-400€/pc for 3D printing. More in our single part vs. series cost comparison.
Can 3D printing match CNC quality?
No, 3D printing achieves ±0.1-0.2mm tolerances and Ra 6-12 surfaces. CNC delivers ±0.01mm and Ra 0.8 directly. Our tolerance guide explains the details.
Can I 3D print prototypes and CNC the series?
Yes, that's the recommended hybrid approach. Note: the design may need adaptation for CNC manufacturing, we advise on material selection.