Various auxiliary lines will be needed in order to draw the part. Since these
auxiliary lines must not appear in the final drawing, they will be in a
different layer from the one used for the finished model.
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Open the layer management window, which is found in the Utilities
Layers
menu.
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Create two new layers called “aux” and “ok”. Enter the name for each layer in
the Layers window (Figure 1) and click New .
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Choose “aux” as the activated layer. To do this, click on "aux" to highlight it
and then click on the Layer To Use button. (The name of the activated
layer will appear next to the button, "aux" in this case.) From now on, all the
entities created will belong to this layer.
Figure 1. The
Layers window
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