Key differences
| SLS | FDM | |
|---|---|---|
| Supports | Not needed | Needed for overhangs |
| Strength | Similar in all directions | Lower between layers |
| Accuracy | ±0.3 mm / ±0.3 % | ±0.5 mm / ±0.5 % |
| Largest part | 335 × 335 × 600 mm | 300 × 200 × 200 mm (up to 914 × 610 × 914 mm on request) |
| Materials | Nylons, TPU | PLA, PETG, ABS, ASA, PC, PA, TPU, PEEK, ULTEM™ |
When to choose FDM
- A low-cost form prototype.
- A large part with a simple shape.
- You need PEEK or ULTEM™.
When to choose SLS
- A functional part under load.
- Complex geometry, internal channels.
- Series production.