Surfacing > Flattening and Bending Features > To Flatten Surfaces, Quilts, or Solid Surfaces
  
To Flatten Surfaces, Quilts, or Solid Surfaces
1. Click Model > Surfaces > Flatten Quilt. The Flatten Quilt tab opens.
2. Select the source surfaces, quilts, or solid surfaces to flatten. If needed, on the References tab, click Details to open the Surface Sets dialog box.
3. To select the origin point at which the flattened quilt or surface will be tangent to the source quilt or surface, click the Origin collector and select a point on the quilt or surface or an on-surface coordinate system.
4. To define an alternate location for the flattened quilt or surface, select the Specify Placement check box, and perform the following actions:
a. To define the plane for the flattened quilt or surface, click the Target collector and select a coordinate system. The flattened quilt or surface will lie on the xy-plane of the coordinate system. The origin of the target coordinate system will coincide with the origin point on the source quilt or surface.
b. To define the x-direction, click the Direction Point collector and select a datum point or a vertex. The x-direction is the direction from the origin point to the projection of the direction point onto the surface.
 
* If an on-surface coordinate system is selected as the origin point, the x-direction of the flattened quilt or surface coincides with the x-axis of the target coordinate system. You can select a datum point or vertex to override this default direction.
5. To define alternate parameterization for the surface or quilt being flattened, on the References tab, click the Parametrization Surface collector, and then select a surface.
6. To define a symmetry plane, on the References tab, click the Symmetry Plane collector, and then select a plane. The symmetry plane must pass through the origin point.
7. Click .