You can change the unit system using the Unit System Selector or the Preferences. When importing "discrete mesh" files (.stl, .nas, .fem) with unspecified units, select the model unit in the Import
Options dialog.
Change the default unit system, create custom units, and measure geometry
features.
Define the Unit System
You can change the unit system using the Unit System Selector or the Preferences. When importing "discrete mesh" files (.stl, .nas, .fem) with unspecified units, select the model unit in the Import Options dialog.
Measure Features
Use the Measure tool to measure geometry features including a length, an angle, and the dimensions of a bounding box.
Measure Weight
Use the Measure Weight tool to estimate the weight distribution of an original model or an optimized shape on a set of point supports.