Turn Edge (Ctrl+E)Example 1
Turning an edge is a very useful tool. The first example that is shown is from a scenario that you will arrive at regularly, its a case where turning an edge results in a symmetrical model which is always the best way to work in 3D. Its not strictly necessary but it results in a model that looks tidier and is therefore easier to work with. From this image you can see the front and perspective views of an abstract 3D shape. On the left is the front view, in it you can see the wireframe that composes the 3D model that is seen in the perspective view. In this image you can see that I have highlighted the faces in question and labeled them Face 1 (yellow) and Face 2 (red) respectively. What we want is to make the model symmetrical, we want Face 1 to look like Face 2 (or it could be the opposite if you wish). What we have to do is select both triangles of Face 1 and perform the turn edge command. As you can see now the wireframe view (front) shows a symmetrical model. The model in the perspective view however, has remained unchanged, as is the case when turning edges on flat surfaces such as in this example. Example 2
In this example we are going to make the model look different in the perspective view by turning the edge of the notch in the middle of the previous model. First we select the two faces that compose the notch in the middle of the model (highlighted blue). Once these two triangles are selected you can perform the turn edge command which will then make the model look like this: This example shows that the angle at which two faces lie against each other determines what the Turn Edge command will produce. A solid bar was produced from a bar with a notch in it. Summary
The Turn edge command will take the line that joins the two selected triangles and place it on the 2 opposing vertices. This is best seen in the following image. The Turn Edge command is a useful tool, it is useful when you have spent a long time creating faces then realise some are not as you would like them to be. The turn edge tool is also useful when you want to create a different shape from an existing one.
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