Freedom Surface

 It is relatively complex to generate freedom surface .you should pick up some profile curves to generate surface.

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1. Revolve Surface: Creates a surface by revolving a profile curve that defines the surface shape around an axis

Steps:

1 Click Menu【Surface >Revolve Surface】.

2 Select the curve of bottle.

3 Pick the start point of the revolving vector.

4 Pick the end point of the revolving vector.

5 Key in the parameter of start angle and end angle.

6 Click Ok to finish operation.

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2. Loft Surface: Creates a surface fit through selected cross curves that define the surface shape

Steps:

1 Click Menu【Surface > Loft Surface】.

2 Select the curves in the order in which the surface should pass through them.

3 Click right button to finish operation.

Option:

Rule Surface:  the sections between the curves are straight line.

Quadric Surface: the sections between the curves are quadric curve.

Rotate 2D curve to vertical plane: 2d curve automatically turns into 3D space curve to generate loft surface.

Besides curve, surface edge curve also can be selected. Eg: pick up a point and circle edge curve .the result is shown.

Note：the selected curves are shown with arrow. mouse clik the section curves again, will reverse the curve.

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3. Rail Surface: Sweep 1 rail surface and sweep 2 rails surface

Sweep 1 rail surface: Creates a surface through profile curves that define the surface shape and one curve that defines a surface edge.

Steps:

1 Click Menu【Surface > Sweep 1Rail Surface】.

2 Select cross –section curve and  rail curve

3 Click right button to finish operation.

options: when cross curve move along the rail

Scale：the cross curve will be scaled. 1: mean not scaling.

Rotate:the cross curve will roated with rail curve; 1: mean
rotating 360 degree.

Note：

1) the selected curves are shown with arrow. mouse clik the section curves again, will reverse the curve.

Sweep 2
Rails Surface:
Creates a surface through profile curves that define the surface shape and two curves that define the surface edges.

Steps:

1 Click Menu【Surface > Sweep 2Rail Surface】.

2 Select two curves as the rails.

3 Select cross-section curves in the order in which the surface will pass through them.

4 Click right button to finish operation.

Option:

Constant Height: when cross curve move along the rail, the height of cross is always same.

Note：the selected curves are shown with arrow. mouse clik the section curves again, will reverse the curve.

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4. Pipe surface: Create a pipe surface through appointed center curve and radius. In fact, pipe surface is a sweep 1 rail surface

Steps:

1 Click Menu【Surface > Pipe Surface】.

2 Pick center curve

3 Key in radius of pipe on status bar.

4 Press Enter on keyboard to finish operation.

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5. Offset Surface: Copies a surface so that locations on the copied surface are the same specified distance from the original surface.

Steps:

1 Click Menu【Surface > Offset Surface】.

2 Select a surface

3 Key in offset distance on status bar.

4 Press Enter on keyboard to finish operation.

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6. Boundary Surface: Creates a surface from two, three, or four selected curves.

Steps:

1 Click Menu【Surface > Boundary Surface】.

2 Select curves.

3 Click right button to end operation.

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7. Curve Plane: generate one or more plane with boundary through pick up one or more closed contour which located in one plane.

Steps:

1 Select curve

2 Click Menu【Surface > Curve Plane】.

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8 .Blend surface

Draws a curve that blends between two curves keeping continuity with the curves

Steps:

1 Click Menu【Surface > Blend Surface】.

2 Adjust mix line.

3 Click the OK button to finish operation.