Abstract: A power toothbrush appliance (10) which includes a user interface assembly (24) having a hidden interface panel (26) and a method of making same, the appliance including a handle (12, 40) and a brushhead assembly (18) with a brush member (24) for cleaning teeth. The user interface assembly is structured so that when the appliance is in the off condition, the user interface panel is blank, and when the appliance is in an on condition, the indicia associated with the selected operating mode of the toothbrush is illuminated and visible to the user. The interface panel includes a first paint layer of gray or black paint (42) on a translucent handle (40). The mode indicia are etched (44) to the handle in the first paint layer. A second paint layer of white paint (46) is applied over the first layer and is light-transmitting so that when the toothbrush is on, the selected indicia are visible to the user.

Abstract: A composite part program post-processor that produces a composite part program for use with a computer-numerical control (CNC) multihead composite material application machine. The post-processor includes a definition receiver, a route delineator, an approach and departure profiler, a machine axis solution computer, and an output file composer. The definition receiver receives material application path definitions, for example, from a composite part program generator. The route delineator delineates tool carriage and manufacturing tool routes. In addition, the approach and departure profiler adds approach and departure profiles to the paths, and the machine axis position computer computes machine axis positions to control the composite material application machine and guide the composite material application heads along the paths. The output file composer then composes a CNC composite part program.

Abstract: A composite part program generator includes a computer-aided design (CAD) system interface, a path generator, a course head manager, a post-processor and a machine simulator. The composite part program generator produces composite part programs for use on a multihead composite material application machine, such as a composite tape lamination machine or an automated fiber placement (AFP) machine, to manufacture a complex composite parts, including relatively flat, contoured, or generally cylindrical composite parts. This programming method can reduce the labor and time required to produce a composite part program for a multihead composite material application machine by an order of magnitude with respect to manual or existing automated programming methods.