Drag and drop components from a library. Input each part's dimensions and tolerances, including GD&T (e.g., shaft shoulder perpendicularity of 0.02 mm).
| Feature | Basic Spreadsheet | Mid-Range Software | High-End (Exclusive) | | :--- | :--- | :--- | :--- | | | Manual dims | CAD import | Full 3D PMI import | | Method | RSS | RSS/Worst-Case | Monte Carlo / 3D vector | | GD&T Support | Limited | Yes | Full ASME Y14.5 support | | Visualization | None | 2D diagrams | 3D interactive models | tolerance stack up calculator exclusive