Before we do step 7 of the design process, we will actually jump first to Step #8: Redesign and optimize.

Engineering design is an iterative process - we first came up with the best design to meet the criteria under the time frame specified, and then (assuming we have the opportunity and time) we refine the design based on results of experimentation, user feedback, etc. In reality, we would brainstorm, build, test, redesign, build, test, and so on..... until we reach our final time constraint, or until we are completely satisfied with our final design.

Once this redesign takes place, we have completed each of the basic steps involved in the engineering design process.

Revisit your prototype. Consider what you have learned about your design. What did you learn about your design by conducting a buckling check? What might you change? Make note of your ideas.

Remember, the Engineering Design Process is iterative and designs must be always be revisited and refined!

Use the iterative process to refine your prototype, and build your Final Physical Prototype.

Your final prototype does NOT need to be a completely new one. You can use your 1st prototype and make minor changes to it! It is all up to you! You can completely rebuild the prototype or just make some minor changes!