> For the complete documentation index, see [llms.txt](https://help.qonic.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.qonic.com/documentation/qonic-application/measure-and-quality/laser-tool.md).

# Laser Tool

Measure distances on planar faces easily using the laser tool.

1. Under the *Measure* icon, click *Laser Tool* or use the <kbd>M</kbd> shortcut.
2. Left-click any surface to place the laser origin. From this location, a visible laser line will be shot in the local X- and Y-directions along the indicated surface. The laser line will continue along the surface, even across multiple parts if these parts have surfaces aligned with the indicated face. If available, a laser line perpendicular to the indicated face (local Z-direction) will be shot towards the nearest object. If the surface is not perfectly horizontal or vertical, the slope will be indicated in degrees, and a black arrow will indicate in which the direction surface slopes down.

<figure><img src="https://929210962-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZKeCFTBZzqUt4lpmhUdS%2Fuploads%2FmqeMbEqjDEiw7YVor9Y5%2Fimage.png?alt=media&amp;token=6013156e-662e-4b57-9f59-e552416d2481" alt="" width="375"><figcaption></figcaption></figure>

3. Left-click any surface to place the laser origin in a new location, **or** grab the laser origin by left-clicking and holding, and drag it around for precise placement.
4. (optional) Enable the Thickness Measure toggle to measure the thickness of the selected product.

{% hint style="info" %}
The direction of the laser lines is based on a local analysis of the geometry, and in case of rectangular surfaces with straight angles the laser lines should always align with this surface. For more complex geometry (e.g. a pentagon), you can redirect the laser lines by moving the laser origin close to the edge you want to align with.
{% endhint %}

{% hint style="info" %}
Distances are displayed in the length unit of the project. Project owners can change the length unit in the [project units](/documentation/qonic-dashboard/projects.md#project-units).
{% endhint %}