You do not need to be familiar with using SpaceClaim to use Additive Prep. The application is mostly self-contained within one tab in the SpaceClaim interface. However, for reference, refer to the SpaceClaim documentation.

The units system assumed in the Additive Prep application is the Metric system using millimeters.

Regardless of whether your part is a design body (.scdoc) or a faceted body (.stl), dimensions of the part must be in units of millimeters (mm) for Additive Prep’s internal calculations. While .stl files are unitless, the SpaceClaim application has to assign a unit system to .stl files for certain functionality to work. If you are creating new geometry in SpaceClaim it will use the units that are set under SpaceClaim Options > Units. This should be set to millimeters if you will be working in Additive Prep. However, there is also an option to override units when saving an .stl file from SpaceClaim. So if you are starting with an existing .stl file, it is possible it may have been saved from SpaceClaim in units other than millimeters. If this is the case, you will need to re-save the .stl file from SpaceClaim in millimeters before bringing it into Additive Prep.

Occasionally there may be known limitations associated with a particular feature in Additive Prep. Those will be noted in this guide where applicable.