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Dimensional accuracy
Published on Friday, 14. January 2005
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3D Printing Dimensional Accuracy Standards (Client Version · 2025 Update)
Choose the appropriate technology based on your needs:
Technology | Accuracy Range (±) | Best For | International Standards |
|---|---|---|---|
FDM | 0.1-0.5 mm | Prototypes, low-cost parts | ISO 2768 (Medium Tolerance) |
SLA/DLP | 0.05-0.15 mm | High-detail models, transparent parts | ISO/ASTM 52902 |
SLS/MJF | 0.05-0.3 mm | Complex structures, small-batch production | ASTM F3122 |
Metal Printing | 0.02-0.1 mm | Aerospace, medical implants | ISO/ASTM 52901 |
Material Properties: Resin shrinkage, metal thermal deformation (e.g., titanium alloy shrinkage: 0.08-0.15%).
Equipment Grade: Industrial-grade machines achieve 2-3x higher accuracy than desktop models (e.g., industrial SLA: ±0.03 mm).
Post-Processing: CNC machining reduces errors by 30-50%.
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).
Acceptance Criteria:
General parts: Follow ISO 2768 Medium Tolerance (m).
Precision parts: Request a ±0.05 mm inspection report.
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.
Previous：3D Cosmetic standards
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