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Manipulating Curves(Surfaces) Edit Curves > Curve Editing Tool

Drag closest solid blue cube to draw handle along the curve. Click theopen box in the center to adjust the curve.

Edit Curves > Open/Close CurveCloses and opens the curve at the first vertex (The U)

Modifying Existing CurvesEdit Curves > Add Points Tool

Adds points to the end of a curve

Edit Curves > Insert Knot

Adds points between verticesRight-Click curve > Curve Point, Left-Click curve to add a point, Insert

Knot.

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Refining NURBS Surfaces

Adding IsoparmsSimilar to adding edge loops in polygons, useful for having more controlwhen modifying a NURBS shapeRight-click object, select isoparm, left-click and drag to temporarily createnew ones, Edit NURBS > Insert Isoparmsto create it

Cutting with Isoparms

Drag to create temporary isoparm, Edit NURBS > Detach Surfaces

Attach Surfaces(on the moved detached surface):

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Revolve

Create your curve, Surfaces > Revolve

LoftCreate at least 2 curves, Shift-Select the curves in order, Surfaces > Loft

ExtrudeCreate 2 curves: one thats a path and one thats an outline

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PlanarClips out a flat shape from a curve shapeDraw a curve, Surfaces > Planar

Stitching NURBS togetherEdit NURBS > Stitch > Stitch Edges Tool, Select Two Edges, Press Enter

View both planes in Control Vertex Mode, Edit NURBS > Stitch Surface Points