CREATING A HOLE IN THE PART |
In the previous sections we drew the profile of the part and we created the surface. In this section we will make a hole, an octagon with a radius of 10 units, in the surface of the part. First we will draw the octagon.
- Select from the menu Geometry->Create->Object->Polygon
to create a regular polygon.
- Enter 8 as the number of sides of the polygon.
- Enter (0,0,0) as the center of the polygon.
- Enter or select (0,0,1) (Positive Z
) as the normal of the polygon.
- Enter 10 as the radius of the polygon and press ENTER
. Press ESC
to finish the action.
We get the result as shown in figure 20. As we only need the boundary we should remove the associated surface. Select the option Geometry->Delete->Surfaces
and then select the surface of the octagon. Press ESC
to finish.
Figure 17. Regular 8-sided polygon
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Creating a hole in the surface of the mechanical part |
- Choose the option Geometry->Edit->Hole NURBS Surface
.
- Select the surface in which to make the hole (Figure 18).
- Select the lines that define the hole (Figure 19) and press ESC
.
Figure 18. The selected surface in which to create the hole
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Figure 19. The selected lines that define the hole
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- Again, press ESC
to exit this function.
Figure 20. The model part with the hole in it
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