> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Optional Conformal Ribbing Test Problem

Now that you have learned how to create conformal ribbing in nTop try this optional test problem by reviewing the answer in the following lesson.

Add a conformal ribbing to the part provided below. The height and beam thickness of the ribbing should be 3 mm, and the unit cell should be a hexagonal honeycomb with U, V,and W divisions of 12x15x1.

<Frame>
  <img src="https://files.learn.ntop.com/lessons/optional-conformal-ribbing-test-problem/311_5_optconformalribbing.jpg" />
</Frame>

**Estimated Time to Complete:** 15 minutes

**Example File:**

[311\_5\_Starter — Conformal Ribbing Test Problem.ntop](https://files.learn.ntop.com/Courses/311%20Ribbing%20and%20Texturing/nTop%20Files/311_5_Starter%20--%20Conformal%20Ribbing%20Test%20Problem.ntop)

*This file was last updated in nTop 5.13.2*