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.

Dual cutting milling tools for removing material from a workpiece include two cutting portions, with one cutting portion being configured for ruled milling, and the other cutting portion being configured for hemstitch milling. In this manner, the number of tool changes for a given manufacturing process may be reduced. Dual cutting milling tools include a first cutting portion and a second cutting portion both formed in a shank, with the first cutting portion being configured to perform hemstitch milling on the workpiece, and the second cutting portion being configured to perform ruled milling on the workpiece. Methods of removing material from a workpiece may include both hemstitch milling the workpiece with the first cutting portion of the dual cutting milling tool and performing ruled milling of the workpiece with the second cutting portion of the dual cutting milling tool, without changing tools in the milling machine.

Dual cutting milling tools for removing material from a workpiece include two cutting portions, with one cutting portion being configured for ruled milling, and the other cutting portion being configured for hemstitch milling. In this manner, the number of tool changes for a given manufacturing process may be reduced. Dual cutting milling tools include a first cutting portion and a second cutting portion both formed in a shank, with the first cutting portion being configured to perform hemstitch milling on the workpiece, and the second cutting portion being configured to perform ruled milling on the workpiece. Methods of removing material from a workpiece may include both hemstitch milling the workpiece with the first cutting portion of the dual cutting milling tool and performing ruled milling of the workpiece with the second cutting portion of the dual cutting milling tool, without changing tools in the milling machine.

A bit for drilling a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a cutter including: a substrate mounted in a pocket formed in the blade; and a cutting table made from a superhard material, mounted to the substrate, and having a non-planar working face with a cutting feature; and a cutter orienting system including: a keyway formed in the substrate and angularly located opposite from the cutting feature; and a key formed in or mounted to the pocket and engaged with the keyway.

A bit for drilling a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a cutter including: a substrate mounted in a pocket formed in the blade; and a cutting table made from a superhard material, mounted to the substrate, and having a non-planar working face with a cutting feature; and a cutter orienting system including: a keyway formed in the substrate and angularly located opposite from the cutting feature; and a key formed in or mounted to the pocket and engaged with the keyway.

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 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 chamfering device includes: a main body including, at a proximal end side thereof, a shank to be attached to a main shaft of a machine tool, the main body including, at a distal end side thereof, a shaft portion extending in a rotational axis direction; a movable body whose proximal end portion is mounted to the shaft portion, the movable body being configured to rotate together with the shaft portion and be movable in the rotational axis direction; an urging member configured to urge the movable body in a direction toward the distal end of the main body; a chamfering tool mounted to a distal end portion of the movable body and configured to rotate together with the movable body to perform chamfering on an edge portion of a workpiece; and a following member mounted to the movable body such that a position of the following member relative to the movable body in the rotational axis direction is invariable and the following member is rotatable relative to the movable body, the following member being configured such that a distal end thereof comes into contact with a surface of the workpiece.

A chamfering device includes: a main body including, at a proximal end side thereof, a shank to be attached to a main shaft of a machine tool, the main body including, at a distal end side thereof, a shaft portion extending in a rotational axis direction; a movable body whose proximal end portion is mounted to the shaft portion, the movable body being configured to rotate together with the shaft portion and be movable in the rotational axis direction; an urging member configured to urge the movable body in a direction toward the distal end of the main body; a chamfering tool mounted to a distal end portion of the movable body and configured to rotate together with the movable body to perform chamfering on an edge portion of a workpiece; and a following member mounted to the movable body such that a position of the following member relative to the movable body in the rotational axis direction is invariable and the following member is rotatable relative to the movable body, the following member being configured such that a distal end thereof comes into contact with a surface of the workpiece.

The invention relates to a machine tool, in particular a milling machine for dental purposes, with a workpiece magazine for receiving workpieces, optionally with the aid of a housing. The workpiece magazine (22) is also moveably mounted with respect to the machine tool (10) and has a fitting position (30) for fitting a new workpiece (18) in the magazine (22). The machine tool also has a housing (40), in particular a partial housing, for each workpiece (18), the housing at least partially receiving the workpiece (18), and/or has a lifting platform (32), which is arranged adjacent to the fitting position (30) and on which the housing (40) together with the workpiece (18) can be received and displaced. The invention also relates to a system comprising a machine tool and a workpiece.