I like to follow the modular approach in my design. So in an assembly where there are multiple parts, I'll go to the one which requires changes and make changes accordingly. Keeping sldprt (f3d in case of fusion) files from the start is of great help to navigate changes. In many cases, the push/pull command is helpful for making changes to a part after everything is done.

With modern CAD feature recognition and direct mesh editing, no design is set in stone. Making necessary revisions to features or dimensions can be simplified with design tables and by changing the sequence of operations in the timeline (Fusion360). The real issue lies in validating that the revised design still achieves the requirements and applicable standards. This is where communication is critical, as its easy for both parties to assume that minor changes do not need further analysis.

The essence of engineering design lies in testing, iterating, and refining until reaching the best solution. A strong CAD model must be adaptable, able to accommodate client changes seamlessly. Flexibility is key—excellent designers build room for adjustments from the start. A practical approach I recommend is to "divide and conquer" by breaking down the model into independent parts or assemblies. Each element should function autonomously, free from restrictive interdependencies, so that any single part can be updated without disrupting the whole. When design engineers master the art of creating such assemblies, they ensure that every element remains easily interchangeable—ready to meet new requirements without starting from scratch.

Em todos os meus projetos, adoto a utiliza??o de blocos dinamicos com o maior número possível de parametros para ajustes. Essa abordagem facilita modifica??es, especialmente em projetos com muitos componentes repetitivos. Além disso, é possível alterar facilmente os parametros e informa??es desses blocos utilizando Macros em VBA, otimizando ainda mais o processo para possíveis mudan?as.

To handle client changes in CAD design without starting over, use modular and parametric modeling, so individual parts can be adjusted. Keep track of revisions, anticipate change-prone areas, and set up a clear change management process. These strategies maintain flexibility and save time.