STEP
Extensions: step, stp6 tools
STEP (ISO 10303) is an international standard for CAD data exchange, preserving precise geometry with NURBS and solid modeling. Widely used in mechanical design and manufacturing, it retains parametric features and assembly structures, unlike mesh formats (STL/OBJ), enabling lossless transfer between CAD software.
STEP suits engineering precision, not real-time rendering. Browsers and game engines require conversion to mesh. Recommended workflow: design in CAD, export STEP for archiving, then convert to STL/GLB for preview or printing. .stp and .step are identical variants.
Format Details
- Full Name
- STEP (Standard for the Exchange of Product Model Data)
- Type
- CAD Model
- Open With
- Notes
- CAD software required for editing parametric features
- Not suitable for real-time or web rendering
- Supported Features
- ISO-standard CAD exchange format
- Precise parametric surface modeling
- Widely supported by CAD/CAM/CAE software
- Suitable for engineering and manufacturing

