A spectacle lens processing device includes a drilling tool and a processor. The processor acquires a position of a hole formed in a lens and a pantoscopic angle. The pantoscopic angle is an angle in a vertical plane between a visual axis of a user and an optical axis of the lens when the user wears spectacles in which the lens after processing is mounted and faces forward. The processor determines, based on the acquired pantoscopic angle, a relative angle between the drilling tool and the lens when the hole is formed in the lens in the position of the hole.

Computer aided design software for designing a building or other structure of brick construction, where in addition to the usual three dimensional modelling and rendering typical of CAD software, tabular data describing the spatial location and orientation of each brick is provided, including information regarding which bricks are cut to length so as to be shortened, and where they are located along each course, and which bricks are machined, drilled or routed for services or other special fittings. Data pertaining to this is compiled in a database for access by control software to control a brick laying machine to build a building or other structure from bricks. The database may receive via interface with a scanner data being a measure of the elevation of the footings and/or concrete pad that has been constructed according to the building plan and for each brick of the first course, to determine how much material must be machined off the bottom of each brick so that when the first course is laid, the tops of the bricks of the first course are at the same level. This machining data is stored for each brick with the tabular data produced by computer aided design software, so that the control software can control the brick laying machine to machine and cut each brick as per the stored data, and convey each brick to the stored position on the footing, pad or previously laid course of bricks, with application of adhesive prior to positioning of the brick.

A method to control a power tool, especially a core drill, including a motor as the drive for the power tool, a control unit, a power display, a transmission having at least a first gear and a second gear, a first sensor to detect the rotational speed of at least one component of the transmission and a second sensor to detect the rotational speed of the motor. The method includes the following steps: ascertaining a first rotational speed of the at least one component of the transmission when the transmission has been put into a gear, ascertaining a first rotational speed of the motor when the transmission has been put into a gear, ascertaining the selection of the gear on the basis of a first prescribed ratio of the first rotational speed of the at least one component of the transmission and of the first rotational speed of the motor on the basis of a look-up table, and setting the limit value of the power display on the basis of the look-up table as a function of the gear that has been selected. A power tool for purposes of using the method.

A core drill bit 1 includes a tubular shaft 12, a mounting platform 34 provided on a proximal end of the tubular shaft 12 for mounting the core drill bit on a power tool 35, and an annular cutting section 2 provided with abrasive cutting segments 3 arranged at a distal end of the tubular shaft 12. The core drill bit 1 further includes a transponder 24 and a slit 27 in the tubular shaft 12. The slit 27 forms a slit antenna 26 for the transponder 24.

A control system is described for a base supporting a telescoping articulated boom assembly indicated generally at 15, comprising long telescopic boom 17 and telescopic stick 19. Mounted to the remote end 21 of the stick 19 is an end effector in the form of a head 23 that supports a 6 axis robot arm 25 that moves a further end effector 27 to manipulate the items. The robot arm 25 has a robot base 31, and mounted above the robot base 31 is a first target in the form of a 6 degree of freedom (6 DOF) high data rate position sensor 33, that provides 6 DOF position coordinates, relative to a fixed ground reference 35, to a control system. Mounted on the end of the robot arm 25 immediately above the end effector 27 is a second target in the form of a 6 degree of freedom (6 DOF) high data rate position sensor 37, that provides 6 DOF position coordinates, relative to the fixed ground reference 35, to the control system. The fixed ground reference 35 tracks the sensor 33 and feeds data to the control system to move the head with slow dynamic response within range of work for the robot arm, and tracks the sensor 37 to control movement of the robotic arm 25 and end effector 27 with fast dynamic response.

The self-propelled construction machine comprises a machine frame 2, supported by a chassis 1, which has wheels or tracks 1A, 1B. A milling drum 4 is arranged on the machine frame. The wheels or tracks and the milling drum are driven by a drive unit 8. A control unit 19 controls the drive unit 8 and a signal-receiving unit 18 detects at least one measurement variable M(t) which is characteristic of an operating state of the milling drum. The rotational speed of the milling drum is adapted, based on at least one measurement variable M(t), to the operating conditions of the construction machine in such a way that the milling drum is operated in a non-critical operating state. The adaptive open-loop control of the milling drum rotational speed allows the construction machine to be operated at an optimum operating point with respect to the milling drum rotational speed.

The invention relates to an automatic tile cutter (1) comprising a cutting table (31) for receiving a tile (21) to be cut, and at least one cutting tool (59) that is translatably movable along a guide rail (61) and is to cut the tile along a cutting line such that a cut tile and scraps are obtained, characterized in that the tile cutter additionally comprises: at least a first conveyor (11) for conveying the tile (21) from a tile loading zone (5) to a tile cutting zone (7); at least two abutments (15) for blocking the movement of the tile (21) in a predefined tile position in the cutting zone; and an electronic control unit (57) configured to control the positioning of the abutment elements (15) and the cutting tool (59) relative to each other in accordance with predefined cutting parameters and actuate the cutting tool.

A controller of a cutting apparatus includes: a storage section configured to preliminarily store as a threshold an arbitrary value based on a load current value of a motor detected when a cutting blade is rotated at a predetermined rotational speed while supplying a predetermined quantity of cutting water in a state in which a cutting water supply nozzle is positioned in an appropriate position; and a judgment section configured to judge normality or abnormality according to the result of comparison between a load current value detected when the cutting blade is rotated at the predetermined rotational speed while supplying the predetermined quantity of cutting water and the threshold stored in the storage section.

A glass plate processing system includes a first aligning means. When first and second glass plates different upper and lower surface areas are processed, the first aligning means aligns a first side edge extending in a front-rear direction on one side in a width direction of a first glass plate to be processed first with a first side edge extending in the front-rear direction on the one side in the width direction of a second glass plate to be processed later. The glass plate processing system causes the first aligning means to align the first side edge of the second glass plate at a position of the first side edge of the first glass plate to perform processing on the second glass plate. The glass plate processing system shortens a moving distance and arrival time for a processing device and shortens cycle time of processing.

Computer aided design software for designing a building or other structure of brick construction, where in addition to the usual three dimensional modelling and rendering typical of CAD software, tabular data describing the spatial location and orientation of each brick is provided, including information regarding which bricks are cut to length so as to be shortened, and where they are located along each course, and which bricks are machined, drilled or routed for services or other special fittings. Data pertaining to this is compiled in a database for access by control software to control a brick laying machine to build a building or other structure from bricks. The database may receive via interface with a scanner data being a measure of the elevation of the footings and/or concrete pad that has been constructed according to the building plan and for each brick of the first course, to determine how much material must be machined off the bottom of each brick so that when the first course is laid, the tops of the bricks of the first course are at the same level. This machining data is stored for each brick with the tabular data produced by computer aided design software, so that the control software can control the brick laying machine to machine and cut each brick as per the stored data, and convey each brick to the stored position on the footing, pad or previously laid course of bricks, with application of adhesive prior to positioning of the brick.