Surfacing > Creating Solid Geometry Using Quilts > About Creating Solid Geometry Using Quilts
  
About Creating Solid Geometry Using Quilts
To create solid geometry using quilts, you must first select the quilts before using the required commands. There are three methods of creating solid geometry by using quilts:
Replace an entire part surface with a quilt. Surface replacement differs from protrusions and cuts because it can add material in some places and remove it in others. Surface replacement is a surface deformation feature, and is created using Model > Offset.
Create a "patch", a feature that replaces a portion of a solid surface (or surfaces) with a quilt whose boundaries lie on the surfaces being patched. This feature is created using Model > Solidify.
Create a construction feature (protrusion, cut, or slot) by using a quilt as the solid feature’s boundaries. Geometry will be added or subtracted up to the border of the quilt used. This is done using Model > Solidify.