In the example above, the cylinder's center point is attached to the sphere, pointing "up" from the perspective of the sphere's surface. For a sphere, a surface normal is defined everywhere that ...

Some objects provide named attachable parts that you can select instead of using the main geometry for the object. One important kind of attachable part is the inside of a tube. The anchors are all on ...

The sewing machine given to me by my grandma with zigzag stitch and buttonholer attachments (Photo by Justin Myers) Though from the late-1950s, it only required a simple tune-up to get it back in ...