1 First, you need to determine which parameters you want to change. These parameters can change the whole part, define them as expression variables and give them initial values.

2. Create the whole model of this part. The input of the variable parameters of the model should be realized by the formula with the main parameters you choose, instead of the definite values, that is, the variable parameters you choose should be used as variables.

3. Then create a model through top-down design, create a blank model and load it into the component model, create the lower-level parts through WAVE, then copy the component model link to each part, and remove the unnecessary parts of each part through specific surface segmentation (surface or slice is divided by features, and if the main parameters need to be changed, create them together in the complete component model and wave them to the lower-level parts together, see notes), and only keep the required parts.

In fact, modeling is a top-down design. When you finish each part, you can see the complete part at the top, and all the parts overlap. By hiding the part, you can see the part equivalent to the assembled part.

This is equivalent to fulfilling your requirements. You only need to change the variable initial values of those main parameters, and all parts will be updated accordingly, and the assembly relationship will remain unchanged.

Note: If the component relationship has influence, the surface or page of the divided part created should also come from the variable formula of the main parameter.