When you create a block-based part, you associate a pre-drawn 3D model block with basic information such as part behavior, placement of connectors, and custom data. Block-based parts represent individual part sizes. Using Content Builder, you define a part family and one or more part sizes. You can also create part sizes in an existing part family. It is important to analyze the catalog hierarchy to decide the best place to add new part families. It is also important to notice the relationships between the different part sizes you want to create. Some may be similar in type and should belong to the same part family, while others may be unique and require their own part family.
The following sections provide an overview for creating block-based parts using Content Builder.