Trelis Tutorials


Let us help make learning Trelis easier.

We are dedicated to helping you succeed. Below are several "how-to" videos and PDF tutorials for learning how to use Trelis.

Getting started.

Installation - Standalone

Instructions for installing a node-locked license of Trelis on a standalone computer.

Installation - Network

Instructions for installing a floating license of Trelis on a network.

Trelis GUI Overview

Overview of the Trelis GUI, including toolbars, command panels, etc.

Video tutorials.

ITEM Wizard

Using the ITEM Wizard to guide you through the meshing process from importing to preparation to exporting.


Creating meshable volumes in Trelis.

Extended Selection

Using Python to create filters for the Extended Selection tool.


Using power tools to clean up a model in preparation for meshing.

Cube With Hollow Sphere

Using symmetry to mesh a cube volume that has a hollow sphere inside.

Boolean Operations

Using powerful Boolean operations to intersect, subtract, and unite volumes in Trelis.

Journal Files

Understanding the powerful use of journal files to save and share Trelis commands.

IDless Journal Files

Sandia National Laboratories' CUBIT tutorial on using IDLess journal files. Applicable to Trelis.

Vertex Types

Sandia National Laboratories' CUBIT tutorial on vertex types. Applicable to Trelis.
Sample files: example19_1.cub, example19_2.cub


Sandia National Laboratories' CUBIT tutorial on pillowing. Applicable to Trelis.
Sample files: example20_1.cub, example20_2.cub

Localizing the GUI

Create Qt translation source and message files for localizing the Trelis GUI, such as changing menus, tooltips, and prompts to another language.

X-ray Selection

Using X-Ray selection to select entities that are hidden behind other entities.

Partial Sphere

One method for meshing a partial sphere using Trelis. See the journal file.


Using the midsurface command to create multisurfaces midway between pairs of surfaces.

Suggest a Video

Want to learn more about using Trelis? Suggest a video tutorial.

Step-by-step tutorials.

Visit our forum.

Have a question about Trelis? Post it on our forum.