How to DISPLAY EDGE LENGTHS in Blender

Introduction

Sometimes it is necessary to know the length of the edges in Blender, for example when we are modeling parts from a schematic or building a model for 3D printing, in this article we will see how to display the length of the selected edges.

All the IMPORTANT information is summarized in the following TUTORIAL FROM MY YOUTUBE CHANNEL




We start with the 3D model shown in figure 1, to activate the display of the edge lengths you can be in object mode or in edit mode, in this case, with the model selected, I will enter in edit mode and select an edge of the model, as shown in figure 2.

3d model of inclined planes made in blender
Fig. 1: 3D model whose edge length needs to be known.
3d model of inclined planes made in blender
Fig. 2: In edit mode an edge of the model is selected.

Let’s locate the icon over the cursor in figure 3, when we click on it the “Viewport Overlays” window is displayed, which allows us to configure which elements overlap in the Blender’s 3D working space, here we will activate the “Edge Length” checkbox, which is shown in figure 4.

Window of overlapping elements in the Viewport.
Fig. 3: Window of overlapping elements in the Viewport.
Option to display the length of the edges of a model in Blender.
Fig. 4: Option to display the edge lengths of a model in Blender.

In doing so, the edge lengths of the selected model are now displayed, as shown in Figure 5.

3d model of inclined planes with edge length in blender
Fig. 5: The 3D model now has the lengths of the selected edges overlapped in the Viewport.



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