What is the minimum hole diameter and clearance requirement for SLM printed parts? | Justway

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What is the minimum hole diameter and clearance requirement for SLM printed parts?

Last updated on Apr 02, 2026

We can stably print holes with a minimum diameter of 1.5mm for SLM metal parts, with smooth inner walls and no residual metal powder. For part clearance, the minimum gap between independent metal structures (thin walls/columns) is 1mm for easy powder cleaning and support removal; we recommend a standard assembly clearance of 0.2mm for most metal part fitting needs, to ensure precise and smooth assembly without jamming.

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