Defining the rim

Completing the form When a successful form is pulled, it is completed with refinements of the lip (also called the rim) and removal from the wheel head. During both of these activities, speed of rotation varies according to the stability of each shape thrown - greater stability allows faster rotation. Horizontal ware, such as bowls, will require a considerably slower speed. Fifty rpm is a starting point to experiment with for slow rim refinement. Refining the rim Once the shape of the rim is defined, it is finished with a wet chamois, a wet sponge, or a lubricated finger. The finishing action leaves a smooth clay surface and may also make subtle adjustments in lip thickness and shape. Uniform lubrication is important for maintaining a centered rim during finishing.