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What design file formats and size limits do you accept for SLM printing?

Last updated on Apr 02, 2026

We accept common industrial 3D CAD file formats including .stl, .obj, .step and .stp for metal printing, with a single file size limit of 500MB. To ensure efficient order review and metal printing accuracy, please do not upload compressed ZIP/RAR folders, and make sure the design files have no broken holes or invalid geometric structures.