A method of manufacturing a button-enabled housing assembly includes pre-forming a composite button component or insert having an elastically flexible button membrane that is mounted on a rigid frame, and thereafter molding a housing over the button insert. The composite button insert is formed in a co-molding operation and can include a rigid island in the flexible button membrane for supporting a cosmetic keycap.

There is provided a polymer fabrication method for forming 3-dimensional shapes from a sheet polymer blank (10) by machining at least one re-entrant, elongate groove forming a reduced thickness portion (25) permitting the blank to be folded and having opposed edges (12) at the surface, folding the blank about the groove to form at least a portion of the 3-dimensional shape, the re-entrant of the groove forming an elongate chamber (21) adjacent the reduced thickness portion and opening through an elongate gap (20) between the opposed edges, hot air welding the opposed edges across the gap with filler rod (22), and heating the reduced thickness portion to a selected thermo-reforming temperature via the chamber.

A method of manufacturing a button-enabled housing assembly includes preforming a composite button component or insert having an elastically flexible button membrane that is mounted on a rigid frame, and thereafter molding a housing over the button insert. The composite button insert is formed in a co-molding operation and can include a rigid island in the flexible button membrane for supporting a cosmetic keycap.

A component of an eyeglass frame and a method for additive manufacturing of such a component are by stereolithography. The component includes an eyeglass frame with an inner edge. An inner support structure is manufactured together with the eyeglass frame to support the eyeglass frame. The inner support structure of the manufactured component is connected to the inner edge at two opposite points so that the points are supported with respect to one another. The surface of the component has a connection region that is hidden in a use position of the finished eyeglass frame. An outer support structure is provided, which is manufactured together with the component. A connection between the outer support structure and the component is established in the connection region. The manufacturing of the inner support structure is started once the connection between the outer support structure and the component has been established.