A fence post jig assembly includes a frame that has a plurality of intersecting sides such that the frame defines a rectangle. In this way the frame can be positioned around a fence post. The frame has a lip extending outwardly therefrom and the lip extends around each of the intersecting sides. Thus, the lip defines a guide surface that is oriented on a horizontal plane when the frame is positioned around the fence post. Moreover, the guide surface can guide a saw to cut the fence post along the horizontal plane thereby enhancing precision of cutting the fence post. A plurality of screws each extends through a respective one of the intersecting sides of the frame and each of the screws extends toward a center of the frame when the screws are tightened. In this way each of screws can engage the fence post for retaining the frame on the fence post at a desired height on the fence post.

A fence post jig assembly includes a frame that has a plurality of intersecting sides such that the frame defines a rectangle. In this way the frame can be positioned around a fence post. The frame has a lip extending outwardly therefrom and the lip extends around each of the intersecting sides. Thus, the lip defines a guide surface that is oriented on a horizontal plane when the frame is positioned around the fence post. Moreover, the guide surface can guide a saw to cut the fence post along the horizontal plane thereby enhancing precision of cutting the fence post. A plurality of screws each extends through a respective one of the intersecting sides of the frame and each of the screws extends toward a center of the frame when the screws are tightened. In this way each of screws can engage the fence post for retaining the frame on the fence post at a desired height on the fence post.

The instant-mount aspect of the present invention allows a user to rapidly accurately dismount a mounted CNC calibration device from a CNC work table, and rapidly replace the CNC calibration device to its previously mounted position within 0.0001, in seconds. The alignment aspect of the present invention allows faster and more robust high-accuracy alignment of a CNC calibration device once it is mounted on a CNC work table. The remote nest aspect of the present invention allows rapid re-positioning of a CNC calibration device within a CNC milling machine cabinet in a way that does not disrupt the data connection between the CNC control computer and the CNC calibration device, and allows for utilization of more of the worktable surface during milling operations.

A workpiece fixing device for fixing a workpiece by vacuum for machining thereof includes a support device on which the workpiece can be laid for fixing, and at least one vacuum chamber which is formed starting from the support device. The workpiece fixing device has a first fixing region and a second fixing region different from the first fixing region. The support device has a first support channel profile in the first fixing region and a second support channel profile different from the first support channel profile in the second fixing region.

A locating fixture that includes a base, an adjustable locating member, a plurality of indicia, a restraining member and a lower substructure. The base includes a raised platform having a mounting aperture. The adjustable locating member is disposed within the mounting aperture and includes a part locating feature and a position indicator fixedly attached to the adjustable locating member. The plurality of indicia is located on the raised platform adjacent to the adjustable locating member. The position indicator cooperates with the plurality of indicia to determine a vertical position of the adjustable locating member. The restraining member is cooperatively engaged with the adjustable locating member. The lower substructure is configured to allow for longitudinal and lateral translation of the base. The base is translatably mounted to the lower substructure.

A locating fixture that includes a base, an adjustable locating member, a plurality of indicia, a restraining member and a lower substructure. The base includes a raised platform having a mounting aperture. The adjustable locating member is disposed within the mounting aperture and includes a part locating feature and a position indicator fixedly attached to the adjustable locating member. The plurality of indicia is located on the raised platform adjacent to the adjustable locating member. The position indicator cooperates with the plurality of indicia to determine a vertical position of the adjustable locating member. The restraining member is cooperatively engaged with the adjustable locating member. The lower substructure is configured to allow for longitudinal and lateral translation of the base. The base is translatably mounted to the lower substructure.

An embodiment of the present invention simplifies the configuration of a suction positioning device. An embodiment of the present invention includes: an output rod (3) having an air discharge passage (11); a sleeve (4) which has a tapered outer circumferential surface (12) and is elastically deformable so as to have a reduced diameter; a transmission member (5) having a tapered inner circumferential surface (13); a plurality of balls (B) which are inserted between the tapered inner circumferential surface (13) and the tapered outer circumferential surface (12); and a suction pad (7) attached to the output rod (3) so as to communicate with the air discharge passage (11).

An embodiment of the present invention simplifies the configuration of a suction positioning device. An embodiment of the present invention includes: an output rod (3) having an air discharge passage (11); a sleeve (4) which has a tapered outer circumferential surface (12) and is elastically deformable so as to have a reduced diameter; a transmission member (5) having a tapered inner circumferential surface (13); a plurality of balls (B) which are inserted between the tapered inner circumferential surface (13) and the tapered outer circumferential surface (12); and a suction pad (7) attached to the output rod (3) so as to communicate with the air discharge passage (11).

A gripping device is provided in a turret-type tool magazine of a machine tool and grips a tool or a tool holder that holds the tool. The gripping device includes: a pair of arms configured to grip the tool or the tool holder by pinching the tool or the tool holder between the arms, a main body part configured to support the pair of arms so that each of the paired arms swings in the pinching directions to pinch the tool or the tool holder between the arms; and an angle detector configured to detect a physical quantity indicating a swing angle of the arm.

A substrate holder for a lithographic apparatus has a main body having a thin-film stack provided on a surface thereof. The thin-film stack forms an electronic or electric component such as an electrode, a sensor, a heater, a transistor or a logic device, and has a top isolation layer. A plurality of burls to support a substrate are formed on the thin-film stack or in apertures of the thin-film stack.