In mold making, among other domains, you may need to convert from a part to the mold geometry. This is done in TransMagic using the Split/Trim function:
- Import a Cube in the correct location in your CAD system
- Open the Cube into TM
- Import the Part into the same view as the Cube
- Select the Part solid geometry and right click ans say use as Split/Trim Geometry
- Select the Cube and say Change/Split.