Every great designer knows this truth — the first version is never the final one.
Even professional engineers and product designers refine their 3D models multiple times before releasing or printing them. This process of reviewing, testing, and improving is called iteration.

In this lesson, you’ll learn how to identify design flaws, fix printability issues, and apply peer feedback to make your design stronger, smoother, and ready for real-world use.

Good design is not just about looks — it’s about function, reliability, and precision. Refinement helps you get there.