# Perimeters

C6 always recommends using a minimum of two perimeters.

#### Perimeters <a href="#perimeters" id="perimeters"></a>

Defines the minimum number of outlines that form the wall of a model. C6 always recommends a minimum of two perimeters.&#x20;

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**Increasing model strength**\
The strength of a model is mostly defined by the number of perimeters (not infill). If you want to have a stronger print, increase the number of perimeters.
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<figure><img src="https://2725271476-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F2Q7lAVMQdQQOQTm1U60O%2Fuploads%2FSzG91wsZMsERGuSnJxeB%2FInkedWalls.jpg?alt=media&#x26;token=35e014ad-c029-4df3-8c28-25eda194a8b5" alt=""><figcaption><p>C6 - Different wall counts example.</p></figcaption></figure>

The number of walls is a major factor in how strong the print will be. Since the walls are adjacent, they can reinforce each other leading to a stronger part. For larger prints, this can be a much more effective way to get a strong object than adjusting the infill, depending on the shape.

Generally, Increase in wall count helps to reduce the shine-through effect where the infill pattern is visible on the outside. It also Improves overhangs and makes the model watertight more easily.

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Increasing the wall count greatly increases the printing time and material usage of the print.&#x20;
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