> ## 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.

# Perforations

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#### Description

This training takes you through the process of creating perforations in nTop. After completing this training, you will have developed an understanding of the different methods for perforations and how to implement them in a workflow.

**Prerequisites:** [101: nTop Essentials](/courses/101-ntop-essentials/), [210: Intro to Lattices](/courses/210-intro-to-lattices/)

**What is covered:**

* Cell Map on CAD Face
* Cell Map on Quad Mesh
* Orient Object
* Branched Lattice Body
* Using a perforation custom block
* Using perforations in 3D printing

Please download the files attached to follow along with the video.

**Downloadable Files:**

[Perforation\_Training.zip](https://files.learn.ntop.com/Courses/Recorded%20Trainings/Perforations%20Training/Perforation_Training.zip)