MicroStation PowerDraft CONNECT Edition Help

Export STL File Dialog

Used to write stereolithography (STL) files from MicroStation PowerDraft surface and solid geometry. STL files are basically lists of triangles.

You can access this dialog from the following:
  • Ribbon: select File > Export > 3D Modeling File Types > Stereolithography (*.stl) and select an element

The Export STL command triangulates input geometry using the Facet Parameters settings, then outputs the triangles to an STL file.

Facet Parameters These settings control the quality of the triangulation that is computed to approximate each input element.
  • Chord Tolerance — Defines the distance tolerance (in master units) between the input element and its triangular facets.
  • Angle Tolerance — Defines the angular tolerance (in degrees) between normals on the input element and on its triangular facets.
  • Max Edge Length — Defines the maximum length (in master units) of a side of a triangular facet.
File Format These settings control the output size and file format.
  • Scale — Sets the scale factor of the output file relative to the design model. The scale values are the same values that are in the scales.def file. Select Custom to input values that are not on the list.
  • Export to — Sets the type of file format for the STL file: binary or ASCII. The binary format is much more compact. Chose ASCII format only if it is necessary for a human-readable output file.