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Step 4. Developing the Cage Further with Key Facial Zone Object Rails

Key facial zone object rails are one step forward in visualising the initial rail mold. There is no definitive benefits over the initial spline rail mold except it lets you color coordinate certain aspects of the mold to correspond with the initial 2D plans, which have colored key facial zones marked on them.

Giving the spline rails volume develops the rail molds further. A primitive shape (square) was quickly lofted along each rail in turn. This allows you to mark off the facial zones, resulting in a fully colored 3D representation of our initial 2D plans, which can be seen in Figure 4.

Figure 4 Key facial zone object rails created from rail mold.

This gives a clear indication where to start building the actual geometry. Again, the proportions can be tweaked further. The 3D work time for a cage mold from the 2D plans to a fully colored cage representation is approximately two hours; a small price to pay for clear direction.

TIP

When lofting your primitive shape along a desired rail try and keep the segmentations as low as possible. This will allow easier editing of the cage if need be. Alternatively, you can go back and edit your spline cage and re-loft the primitive shape.

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