Homework
Lecture
Rationale
Desired File Structure
Parametric Model Creation
Family Validation & Creation
Candidates for Part Families
Part Families
Part families can be useful when it is necessary to produce several models that share common characteristics. Generally, parts that are defined by “chart drawings” are good candidates for part families.
To use part familes, you need to create parameters that will define part geometry. For instance, for a family of cylinders, you might define expressions called “DIAMETER” and “LENGTH”.
- Tools -> Expressions to create the parameters
Next, create a cylinder and use the expressions DIAMETER and LENGTH to define the dimensions of the cyinder. You can enter any values for the parameters. Be sure to assign units of length.
- Insert -> Design Feature -> Cylinder
Now, use the part family tool to create a spreadsheet to define the family.
- Tools -> Part Families
Add columns for DIAMETER and LENGTH
Excel should load. Enter values for the family of parts.
Notice that Excel now has an add-in called “part families.” This gives you new Excel commands that will generate the family of parts through NX.
See also: Deformable Parts
