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How to Choose a Mold Type for Your 3D Model
Choose a mold workflow from the geometry, release direction and intended casting process—not from the visual shape alone.
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Blog | AutoMold3D
Practical AutoMold3D articles about mold generation, STL preparation and 3D-printing workflows.
BLOG
Prepare an STL Before Mold Generation
A small topology check before generating a mold prevents avoidable failures in splitting, clearance and printable walls.
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Split a Large Model for FDM Printing
Plan the fewest safe cuts that fit the real printer build volume, then place connectors only where the cut face has enough material.
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How to Turn an STL File into a 3D-Printable Mold
A practical STL-to-mold workflow starts with a sound mesh, a usable release direction, and printable clearance around the cavity.
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How to Make a Two-Part Mold from an STL File
A two-part mold works when the model can separate along a deliberate parting line without trapping geometry.
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How to Repair a Non-Manifold STL for 3D Printing
Non-manifold edges can make a slicer or mold workflow ambiguous, so inspect the mesh before attempting a repair.
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How to Split a Large STL for 3D Printing
When an STL is too large for a printer, plan cuts around the real build volume and assemble from strong interfaces.
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How to Reduce STL File Size Without Losing Needed Quality
Reduce STL polygon count gradually and compare the result so the details that matter to the final mold remain intact.
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3D-Printed Mold Wall Thickness Guide
Mold wall thickness should protect the cavity and registration features while staying practical for the chosen printer and material.
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How to Choose a Parting Line for a Two-Part Mold
A well-chosen parting line lets both mold halves release cleanly while keeping seams away from critical detail.
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STL vs OBJ vs 3MF for 3D Printing and Mold Making
Choose the file format that preserves the information your workflow needs, then confirm scale and mesh health before making a mold.
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