Dimensional accuracy

3D Printing Dimensional Accuracy Standards (Client Version · 2025 Update)‌

1. Quick Selection Guide‌

Choose the appropriate technology based on your needs:

2. Key Factors Affecting Accuracy‌

1. ‌Material Properties‌: Resin shrinkage, metal thermal deformation (e.g., titanium alloy shrinkage: ‌0.08-0.15%‌).

2. ‌Equipment Grade‌: Industrial-grade machines achieve ‌2-3x higher accuracy‌ than desktop models (e.g., industrial SLA: ±0.03 mm).

3. ‌Post-Processing‌: CNC machining reduces errors by ‌30-50%‌.

3. Design Recommendations for Clients‌

1. ‌Design Compensation‌:

   • Enlarge holes by ‌0.1-0.3 mm‌ (e.g., +0.2 mm for FDM).

   • Minimum wall thickness: ‌1.5 mm‌ (metal) or ‌0.8 mm‌ (resin).

2. ‌Acceptance Criteria‌:

   • General parts: Follow ISO 2768 ‌Medium Tolerance (m)‌.

   • Precision parts: Request a ‌±0.05 mm inspection report‌.

‌4. 2025 Technology Highlights‌

• ‌AI-Driven Compensation‌: Auto-corrects deformations for ‌±0.03 mm accuracy‌ (ideal for medical devices).

• ‌Nano-Scale Photopolymerization (μSLA)‌: Achieves ‌±0.01 mm‌ precision for micron-level structures.