What File Formats Do 3D Scanners Produce? STL, OBJ, PLY & STEP
Quick answer: The file you need depends on what happens after scanning. A printable mesh, a colored visualization, and an editable CAD model are different deliverables.
Practical guide for industrial scanning and optical metrology.
STL: surface mesh for manufacturing workflows
STL stores triangles describing a surface and is widely accepted by 3D-printing software. It normally does not preserve color, material, dimensions as semantic features, or an editable CAD history.
OBJ and PLY: richer scan meshes
OBJ can reference texture coordinates and image files. PLY can store point or mesh geometry and additional attributes such as color. Actual content depends on the scanner export options.
Point clouds: measured points
Formats such as PTS, XYZ, or E57 may carry point data rather than a triangulated surface. For large-area scanning and registration, point clouds can be the right handoff.
STEP and IGES: reconstructed CAD
An optical scanner does not typically output a clean parametric STEP model directly. The mesh or point cloud is used to fit or rebuild surfaces and solids in reverse-engineering software.
Create a better handoff brief
Specify whether the recipient needs millimeters or inches, watertight geometry, a color texture, an inspection report, or fully editable parametric features.
Related 3D scanning guides
Once you choose the file format, learn how to reconstruct editable CAD from a scan, which scanner to use for your deliverable, and how to prepare parts for reliable capture. These articles cover the next steps in the same workflow.
Frequently asked questions
Can I send an STL to a machine shop?
Sometimes as a geometric reference, but manufacturing may require STEP, a drawing, datums, and tolerances.
Can OBJ be used for 3D printing?
Often, provided the slicer supports it and the mesh is repaired and correctly scaled.
Next step: Contact our 3D scanning team. For target compatibility and chemical handling, verify the manufacturer's current documentation.
How we select and verify technical sources ↗
Technical guidance is general. Check your scanner documentation and the relevant manufacturer's current technical and safety data sheets before applying products to sensitive parts.
