Systems and methods are disclosed for machining an eyewear frame. One method includes receiving a coupon of material for making the eyewear frame, the frame comprising a perimeter, a front portion and a rear portion; cutting the coupon along the perimeter of the eyewear frame, the cut being from the rear portion of the frame to a predetermined depth from the front portion of the frame; and creating a plastic seam around the frame by further cutting the coupon from the front portion of the eyewear frame.

A method of manufacturing is provided, including forming a metal frame of a head-mounted computing device shaped as a pair of eyeglasses. Forming the metal frame may include additively manufacturing the metal frame of the head-mounted computing device by performing laser sintering on aluminum powder or titanium powder. Forming the metal frame may further include removing an outer surface of the metal frame via a reductive process.

Systems and methods are disclosed for machining an eyewear frame. One method includes receiving a coupon of material for making the eyewear frame, the frame comprising a perimeter, a front portion and a rear portion; cutting the coupon along the perimeter of the eyewear frame, the cut being from the rear portion of the frame to a predetermined depth from the front portion of the frame; and creating a plastic seam around the frame by further cutting the coupon from the front portion of the eyewear frame.

A method of making a pre-aligned optical mount, including: mounting a desired optical element onto a housing; securing the housing onto a stage having at least four degrees of freedom; aligning the optical element with a specified optical axis by adjustment of the stage; machining the housing to match an optical platform onto which the housing is be mounted; wherein the housing is machined such that an optical axis of the optical element is aligned with a predefined optical axis with respect to the optical platform when the housing is mounted onto the optical platform.

The invention relates to a method for manufacturing parts of acetate eyeglass frames from an acetate plate. The plate is designed with length and height dimensions defining a surface area that encompasses the perimeter boundary of the body of the frame part to be manufactured, and with a thickness the value of which is at least equal to the maximum transverse dimensions of the three-dimensional shape of the body of the frame part itself and extends evenly over the entire surface defined by the length and the height of the plate. The method also comprises the step of forming a cut within the surface dimensions of the plate along the perimeter boundary of the body of the eyeglass part to be manufactured, excepting a pair of portions of said boundary, thereby leaving said portions connected to the plate, and the step of forming the three-dimensional shape of the frame part body by removing material from the thickness of the plate. The same method also comprises the step of forming the lens seats, the grooves for receiving lenses within their seats, a nose bridge, bridge arms, and the endpieces for connection to the temples. The invention further relates to an apparatus for carrying out the process and an eyeglass frame so manufactured.

A milling device having a first milling station with a first workpiece spindle capable of rotating about a first spindle axis A1 intended to receive a first lens blank and with a first milling tool with first cutters capable of rotating about a first milling axis FA1 intended for machining a received first lens blank. At least one second milling station with a second workpiece spindle capable of rotating about a second spindle axis A2 receives a second lens blank, and with a second milling tool with second cutters capable of rotating about a second milling axis FA2 machining the received second lens blank, the spindle axes A1, A2 being aligned parallel to one another, the milling axes FA1, FA2 being aligned parallel to one another, and obliquely aligned to the spindle axes A1, A2. The invention also includes a method for the operation of the milling device.

A method of making a pre-aligned optical mount, including: mounting a desired optical element onto a housing; securing the housing onto a stage having at least four degrees of freedom; aligning the optical element with a specified optical axis by adjustment of the stage; machining the housing to match an optical platform onto which the housing is be mounted; wherein the housing is machined such that an optical axis of the optical element is aligned with a predefined optical axis with respect to the optical platform when the housing is mounted onto the optical platform.

A method of processing a workpiece with a first surface and a second surface facing away therefrom includes the following principal steps: (i) blocking the workpiece with the aid of a blocking material on a blocking member with the blocking material between blocking member and first surface, (ii) processing the workpiece by a geometrically defined cutting edge at the second surface for achieving the desired macrogeometry, (iii) processing the workpiece by a geometrically undefined cutting edge at the second surface for achieving the desired microgeometry and (iv) deblocking the workpiece from the blocking member. The principal step (ii) includes a plunge-cutting sub-step (ii.2) in which by a geometrically defined cutting edge an encircling plunge cut is produced which extends through the first surface as far as into the blocking material so that the workpiece with a predetermined edge profile remains on the blocking member radially within the plunge cut.

A method for machining an optical lens via a trimming machine, includes: a step of locking the optical lens, a step of acquiring shape characteristics of the optical faces of the optical lens, a step of generating an instruction for trimming the optical lens, and a step of trimming the optical lens along a desired contour. The method also includes the following steps: a step of generating an instruction for etching the optical lens depending on the acquired shape characteristics, and a step of etching the optical lens along a line located inside the desired contour, during which a pointed etching tool of the trimming machine is controlled according to the etching instruction in such a way that the point of same continually slides against the optical face in order to score same along the line.

The invention relates to a machine for processing plastic workpieces. A machine housing surrounds a working chamber located between a workpiece spindle for rotationally driving the workpieces about a workpiece axis of rotation and a fast tool servo for producing an oscillating feeding movement of a rotary tool in the direction of the workpieces. The workpiece spindle is provided with a carriage which can be driven and is guided on at least two guide surfaces of a guiding arrangement in order to produce a relative advancing movement between the workpiece and the rotary tool. The advancing movement runs transversely with respect to the feeding movement and defining therewith a processing plane in which during processing the rotary tool engages with the workpiece. The guiding arrangement is mounted on the machine housing such that the processing plane extends between the two guide surfaces.