of five different pipe joint primitives. Radius, angle, and other parameters can be changed in the Tool Shelf . Gears Adds a gear or a worm with many parameters to control the shape in the Tool Shelf . Retrieved from " http://wiki.blender.org/index.php/Doc:2.6/Manual/Modeling/Meshes/Primitives " Categories : Meshes | Mesh Primitives Doc:2.6/Manual Unversioned