> ## 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: Export Meshing Test Problem

Now that you have learned ways to export a mesh out of nTop, feel free to try this optional problem with a review of the answer in the following lesson.

Given the variable “Final Body” in the starter file, export this implicit body as a 3MF with a file size smaller than 10,000kB. The final mesh should have a closed, edge manifold, and oriented mesh that is not self-intersecting. The mesh tolerance should be 0.1mm, and you do not need to check Sharpened.

<Frame>
  <img src="https://files.learn.ntop.com/lessons/optional-export-meshing-test-problem/102_16_TestProblem.jpg" />
</Frame>

**Estimated Time to Complete:** 25 minutes

**Example File:**

[102\_16\_Starter — Export Mesh Test Problem.ntop](https://files.learn.ntop.com/Courses/102%20Guide%20to%20Meshing/nTop%20Files/102_16_Starter%20--%20Export%20Mesh%20Test%20Problem.ntop)

*This file was last updated in nTop 5.12.2*