Abstract: Improved methods and systems for operating moveable architectural elements (e.g., furniture) are described. The method includes performing a first part of a movement of the moveable architectural element along a portion of a length of actuation using a motor. The method includes performing a second part of the movement of the moveable architectural element with a desired movement profile and, based thereon, measuring an operation parameter. The method includes comparing the measured operation parameter to a profile of the operation parameter. The method includes incrementing a first counter if a first differential between the measured operation parameter and the profile of the operation parameter exceeds a differential threshold. The method includes adjusting the second part of the movement of the moveable architectural element if the first counter exceeds a counter threshold. Many other improvements and features are contemplated and described.

Abstract: An abnormality detection system includes: shape data acquisition means for acquiring shape data of a surface of a structure; reference shape calculation means for calculating a reference shape for the shape data acquired by the shape data acquisition means; abnormality candidate extraction means for extracting an abnormality candidate area of the surface based on a difference between the reference shape calculated by the reference shape calculation means and the shape data corresponding to the reference shape; degree of roughness calculation means for calculating a degree of roughness of the abnormality candidate area extracted by the abnormality candidate extraction means and an area near the extracted abnormality candidate area; and abnormality determination means for determining that there is an abnormality in an area where the degree of roughness calculated by the roughness calculation means exceeds a threshold among the abnormality candidate areas extracted by the abnormality candidate extraction means.

Abstract: A computer-implemented system and method relate to object discovery. The system and method include receiving a source image and generating input data by associating each pixel of the source image with predetermined phase values. An encoder encodes the input data to generate latent representation data in spherical coordinates. A decoder decodes the latent representation data to generate spherical reconstruction data of the source image. The spherical reconstruction data includes a radial component and a plurality of phase components. A reconstructed image is generated based at least on the radial component. The reconstructed image is a reconstruction of the source image.

Abstract: A crack estimation device which accurately estimates a crack inside a structure is provided. The crack estimation device includes: a measurement unit which measures deformation of a measurement plane as a measurement plane deformation vector; a model generation unit which sets deformation of the measurement plane when a crack is generated in a crack generation plane, as a measurement plane estimated change vector for multiple types of crack candidates; and a crack state analysis unit which obtains a similarity between the measurement plane deformation vector and the measurement plane estimated change vector, normalizes the similarity, and estimates the crack generated in the crack generation plane from a result obtained by multiplying a vector of a state quantity indicating a state of the crack generation plane by the normalized similarity for each crack candidate, and adding together results of the multiplication for all the crack candidates.

Abstract: A coated structure with a monitoring system includes a base having a base surface, a coating system having one or more layers of cured coat providing protection against surface degradation and being joined to the base surface in a base interface and extending in a thickness direction to an outer coating surface, at least one electrode made from a conductive material embedded in the coating system. The monitoring system is configured to generate an input signal in the at least one electrode and to read an output signal from the at least one electrode, and from the output signal, to determine cracking of the one or more layers of cured coat.

Abstract: A method is disclosed for detecting the wear of a cutter in a key-duplicating machine, the cutter being provided with cutting sections to obtain bitting cuts on a key and being put in rotation by an electric motor. The method includes measuring, during at least one cutting cycle carried out by means of the cutter, the values of current and/or voltage absorbed/required by the motor for rotation of cutter and/or motor torque values exerted by the motor. The values thus detected are used to determine if there is wear of the cutting portions of the cutter and/or to quantify the wear of the cutting portions of the cutter.

Abstract: A worktable for laser processing includes a lower plate, internal blocks, and external blocks. The lower plate includes a first area, a second area surrounding the first area, and a third area surrounding the second area. The internal blocks are disposed on the lower plate in the first area and the external blocks are disposed on the lower plate in the third area. The external blocks surround the internal blocks.

Abstract: An article attaching device to be attached to an apparatus including a movable member includes a holder configured to hold an article, a base to be secured to the apparatus, and a rotator to support the holder on the base. The rotator supports the holder to rotate in conjunction with a movement of the movable member.

Abstract: A method for evaluating rock drillability by a nano-indentation test on a rock cutting includes: conducting a nano-indentation test on a rock cutting sample, acquiring a displacement-load curve of an indenter, and calculating a micro-hardness under the nano-indentation test; calculating mineral composition of the rock cutting sample based on a statistical distribution characteristic of the micro-hardness, and transforming the micro-hardness under the nano-indentation test on the rock cutting sample into a macro-hardness; and calculating a rock drillability grade characterized by the micro-hardness under the nano-indentation test on the rock cutting sample based on a correlation between the macro-hardness of the rock cutting sample and the rock drillability grade. In the context of few downhole rock samples and high cost, the method overcomes the limitation of sample size and shape on conventional testing and solves the difficult problem of mechanical parameter testing of deep rocks.

Abstract: A machine tool (1) includes: a front spindle (10) having a front chuck (12); a rear spindle (20) having a rear chuck (22); a controller (50) configured to cause the rear chuck (22) to perform a fastening operation for fastening a work (W) fastened to the front chuck (12) to the rear chuck (22); and a detector (60) configured to detect an abnormality caused by the fastening operation by the rear chuck (22), based on measurement data associated with a vibration of at least one of the front chuck (12) and the rear chuck (22).

Abstract: A technique for synthesizing a shape includes generating a first plurality of offset tokens based on a first shape code and a first plurality of position tokens, wherein the first shape code represents a variation of a canonical shape, and wherein the first plurality of position tokens represent a first plurality of positions on the canonical shape. The technique also includes generating a first plurality of offsets associated with the first plurality of positions on the canonical shape based on the first plurality of offset tokens. The technique further includes generating the shape based on the first plurality of offsets and the first plurality of positions.

Abstract: An edge inspection apparatus includes a guide bracket and a camera mount. The guide bracket includes at least one contact surface and an abradant retainer. The contact surface makes contact with a corresponding surface of a target object and aids in positioning the guide bracket relative to an edge of the target object. The abradant retainer secures an abradant to the guide bracket and secures the abradant in a position relative to the edge of the target object. The camera mount secures a camera in a fixed position relative to the guide bracket and orients the camera lens toward the edge of the target object.

Abstract: A measuring method includes storing thickness data of each of chips held on a holding surface of a holding table, the thickness data being obtained by measurement of thicknesses of portions of the chip at a plurality of measurement points and representing the thicknesses measured at the measurement points in association with positions of the measurement points in a predetermined plane corresponding to a reverse side of the wafer, storing positions of central lines of dividing grooves in the predetermined plane in captured images of reverse sides of the chips, setting, in a periphery of each of the chips, a thickness data unreferencing zone including measurement points where the thickness data will not be referenced in calculating the thickness of the chip, and calculating, for each of the chips, an average value of thicknesses at the measurement points except for the measurement points included in the thickness data unreferencing zone.

Abstract: A detection system for detecting a virus or the like. The detection system includes an autonomous collection device that is capable of moving on a floor surface and for collecting an object on the floor surface, and a station device for detecting an analyte from the object collected from the floor surface by the autonomous collection device. The autonomous collection device includes a moving part for moving on the floor surface, a primary electric blower for sucking the object on the floor surface, and a dust container for storing the sucked object. The station device includes a transfer pipe fluidically connected to the dust container of the autonomous collection device when the autonomous collection device is positioned in a home position, and a virus detection part for detecting the analyte from the object transferred from the dust container through the transfer pipe.

Abstract: A structure for cooling a rake face of a cutting insert in a region near a tip of a cutting edge. The cutting insert includes a rake face, a cutting edge formed on an outer periphery of the rake face, a base portion that supports the rake face, and an internal cooling path through which fluid for cooling the rake face flows. The internal cooling path includes an introduction flow path and a cooling flow path, and the cooling flow path is disposed behind a region in which a chip of a workpiece comes into contact with rake face. The cooling flow path is provided at a depth of less than or equal to 1.5 mm from the rake face.

Abstract: The invention relates to a method for determining the degree of wear of at least one component of a machining device (10), wherein at least one actual condition (19) of the machining device (10) is established and the at least one actual condition (19) is compared to at least one comparative condition (18) of the machining device (10), and a conclusion is drawn as to the degree of wear of the at least one component as a function of a deviation determined between the at least one actual condition (19) and the at least one comparative condition (18), wherein, to establish the at least one actual condition (19) and/or the at least one comparative condition (18), sound emissions (16) of the machining device (10) are captured.

Abstract: A tool received in a tool holding fixture of a tool holder includes a tool shank defining a recess and a force sensor arranged in the recess. During operation of the tool, the force sensor measures a tool force exerted by the tool shank onto the tool holder. A method for measuring a tool force by using the tool includes the steps of: arranging the force sensor between the tool shank and the tool holding fixture; clamping the force sensor by means of a clamping device of the tool holding fixture; operating the tool; and using the force sensor to measure the tool force exerted by the tool shank onto the tool holder.

Abstract: A system for detecting a thickness and a bow of a large-sized wafer and a method for detecting a thickness and a bow of a large-sized wafer are provided and relate to wafer detection, the system includes a transportation mechanism, a handling mechanism and a detection mechanism. The transportation mechanism includes a transportation belt and is configured to transport the wafer. The handling mechanism includes a mechanical arm, an end of the mechanical arm is provided with multiple vacuum suction cups, and the handling mechanism is configured to transport the wafer from the handling mechanism to the detection mechanism. The detection mechanism includes a bearing structure and an optical detection structure, and is configured to detect the thickness and the bow of the wafer. The bearing structure includes multiple strings configured to bear the wafer. The optical detection structure includes a camera and a liquid crystal display (LCD) panel.

Abstract: A device including a first layer, a MEMS component and/or an ASIC component on the first layer, and a second layer having a cavity receiving the MEMS component and/or the ASIC component. The second layer has a feedthrough for transmission of at least one of an electrical signal, an electromagnetic signal, a fluid, and a force.

Abstract: A casting method includes pouring a molten metal in a ladle into a mold, analyzing at least one of a composition and a physical property of a test piece generated based on the molten metal sampled from inside the ladle, and performing appearance inspection of a casting product taken out from the mold, wherein in the performing appearance inspection, the at least one of the composition and the physical property of the test piece obtained in the analyzing is displayed on a display.

Abstract: The present invention generally relates to assigning and reporting the cleanliness of objects and areas, and particularly relates to utilization of object and area cleanliness states as determined by the opposing processes of cleaning and dirtying detected through various methods to provide an indication of the state of cleanliness potentially utilized to alter the process of cleaning and/or dirtying to reach a desired state of cleanliness. Detection of the cleaning and dirtying operations can be performed automatically through image processing and behavior detection of still images/video indicating the activity taking place in the area of interest and time. The state of cleanliness can then be reported to interested parties as textual reports and/or augmented reality overlays on still images/video.

Abstract: A method for detecting and compensating CNC tools being implemented in an electronic device, receives from a detector first parameters and second parameters in respect of a first tool. Such first parameters include at least one of service life, blade break information, and blade chipping information of the first tool, and such second parameters include at least one of length extension information, length wear information, radial wear information, and blade thickness wear information of the first tool. Based on the first parameters, instructions to process the workpiece are transmitted or not. Upon receiving the second parameters, instructions to adjust operation of the first tool are transmitted, to compensate for deterioration in normal use.

Abstract: A method for the surface treatment of flat products made of aluminium alloys. The method includes pickling the flat product, in particular for degreasing the flat product. The method includes carrying out a colour measurement on the surface of the flat product to determine at least one measured colour value after pickling the flat product. The method includes generating output information on the basis of the at least one measured colour value. The output information is indicative of compliance with at least one rule for the measured colour value and outputting or triggering the output of the output information. The invention further relates to a device for the surface treatment of flat products made of aluminium alloys and to a use of a colorimeter which is configured to determine at least one measured colour value in a surface treatment of flat products made of aluminium alloys.

Abstract: The present disclosure relates to a method for online monitoring defect of a milling tool, comprising the steps of: 1) installing a vibration sensor module on a machine tool spindle; 2) acquiring initial sample data; 3) setting a threshold value ?S0 with a time interval of T; 4) measuring vibration signals of n blades in x, y and z directions in each period T0; 5) shaping to obtain n strong vibration cutting wave data respectively formed by n blades in x and y directions in each period T0; 6) analyzing and processing the strong vibration cutting wave data to obtain the difference ?S0/ between the cutting strong vibration wave areas formed by each blade in each period T0; 7) outputting a blade wear or defect signal to a display alarm module according to the constraint conditions by a data comparing and analyzing module, and giving an alarm by a display alarm module.

Abstract: A conductive roller includes: a core member including an outer surface along and about an axial line thereof; and a surface layer arranged along the outer surface of the core member. The surface layer includes a conductive portion, and a surface roughness imparting material in a form of particles dispersed in the conductive portion. An average particle size of the surface roughness imparting material is in a range of 6 micrometers or greater and less than 10 micrometers. The number of particles of the surface roughness imparting material per unit area of the surface layer is in a range of 3.5×105 particles per mm2 or greater and 7.5×105 particles per mm2 or less. An average thickness of the surface layer is in a range of 0.2 micrometers or greater and 5.5 micrometers or less.

Abstract: A turning tool includes a tool body extending along a tool axis and having a base on a tip of the tool body, a cutting insert detachably attached to the base, and a measurement device attached to the tool body. The measurement device has a first distance sensor which measures a distance to an object located radially outward of the tool axis.

Abstract: A detection system including an autonomous collection device that is capable of moving on a floor surface and for collecting an object on the floor surface, and a station device for detecting an analyte from the object collected from the floor surface by the autonomous collection device. The autonomous collection device includes a moving part for moving on the floor surface, a primary electric blower for sucking the object on the floor surface, and a dust container for storing the sucked object. The station device includes a transfer pipe fluidically connected to the dust container of the autonomous collection device when the autonomous collection device is positioned in a home position, and a virus detection part for detecting the analyte from the object transferred from the dust container through the transfer pipe.

Abstract: An assembly method and a fixing device for an electric motor are provided. The assembly method includes: carrying out preparation, wherein a stator of the electric motor is segmented, in the circumferential direction, into at least two stator segments, and a rotor of the electric motor is segmented, in the circumferential direction, into at least two rotor segments; carrying out pre-assembly, wherein the stator segments and the rotor segments are coaxially fixed to fixing devices to form segment modules, and predetermined gaps are maintained radially between the stator segments and the rotor segments; carrying out adjustment, wherein at least two fixing devices are moved and adjusted such that the stator segment and the rotor segment of the adjacent segment modules are mutually attached and aligned with each other along segmental end faces in the circumferential direction; carrying out assembly; and carrying out dismounting, and dismounting the fixing devices.

Abstract: An implant-trialing instrument for objectively determining a recommended implant size based at least in part on results of inserting a pressure sensitive trial implant into the intervertebral space. The trial implant instrument can include a handle coupled to a pressure sensitive trial. The handle can include an elongate shaft. The pressure sensitive trial implant can be disposed on a distal end of the elongate shaft and include a superior end plate surface configured to engage a first end plate of a first vertebral body and an inferior end plate configured to engage a second end plate of a second vertebral body. The pressure sensitive trial implant also includes a pressure sensitive film disposed on at least one of the superior end plate and the inferior end plate.

Abstract: A machine tool includes a machine element, an active vibration damper arranged on a region of the machine tool for damping a vibration of the machine element, and a vibration sensor facility arranged to detect the vibration of the machine element at a first point and at a second point of the machine tool, with the vibration of the machine element to be detected being smaller at the second point than at the first point. The active vibration damper is designed to damp the vibration of the machine element as a function of a variation between a first actual value detected by the vibration sensor facility at the first point and a second actual value detected by the vibration sensor facility at the second point.

Abstract: Tool for machining a workpiece, comprising a cutting insert having at least one cutting edge, a cutting insert holder comprising a cutting insert receptacle for receiving the cutting insert, a clamping element acting as a clamping wedge, which can be fastened in the cutting insert receptacle for clamping the cutting insert in the cutting insert holder, a fastening element for fastening the clamping element in the cutting insert holder and simultaneously clamping the cutting insert in the cutting insert holder, and a sensor configured to generate a measurement signal that is dependent on a force acting on the cutting insert, wherein the clamping element comprises a recess in which the sensor is arranged.

Abstract: A data storage device (DSD) includes a base-deck, a disc above the base-deck, and a shaft extending perpendicular from the base-deck. The DSD also includes a head stack assembly (HSA) including a head gimbal assembly having a load beam and a head at a first end of the HSA. The head interacts with a surface of the disc. The HSA also includes a second end movably mounted on the shaft. The DSD additionally includes an elevator that linearly moves the HSA along the shaft to adjust a distance between the load beam and the surface of the disc in response to receiving a feedback signal associated with the interaction of the head with the surface of the disc. The feedback signal is one of a plurality of feedback signals employed by the elevator to adjust the distance between the load beam and the surface of the disc.

Abstract: A sensor package comprises a MEMS sensor chip, a cover arranged over a first main surface of the MEMS sensor chip, said cover being fabricated from a mold compound, and an electrical through contact extending through the cover and to electrically couple the sensor package to a circuit board arranged over the cover.

Abstract: An automatic knife sharpening machine may include a vice to grip a blade of a knife and a pair of grind wheels to grind material from the blade. The machine may include a scanner to determine a profile of an edge of the blade, and a sharpness sensor to determine a sharpness level of the edge. The machine may include a controller. The controller may perform a first sharpening pass on the knife by moving the grind wheels into contact with the blade, and advancing the grind wheels longitudinally along the blade from adjacent the vice towards a tip of the blade with the grind wheels in contact with the blade. The controller may determine, using the sharpness sensor, the sharpness level of the edge after the first sharpening pass and perform at least one second sharpening pass when the determined sharpness level is less than a threshold sharpness level.

Abstract: A recognition processor performs recognition processing to recognize an external environment of a mobile object, based on image data acquired by an imaging unit that takes an image of an external environment of the mobile object. The recognition processor includes a plurality of arithmetic cores. The plurality of arithmetic cores include a recognition processing core that performs the recognition processing, and an abnormality detection core that detects an abnormality of a data processing system including the imaging unit and the recognition processor, based on the abnormality of the output from the recognition processing core.

Abstract: An electronic component inspection apparatus includes: a holding unit that holds an electronic component having a component body and terminals; light sources and reflection plates that irradiate reflected light at least on the terminals of the electronic component held by the holding unit, from the side of a back face opposite to a mounting face of the electronic component; a camera that captures an image of the electronic component under irradiation of the reflected light, from the side of the mounting face; and a control unit that controls processing related to inspection of the electronic component, on the basis of the image of the electronic component captured by the camera.

Abstract: In one example, a semiconductor device comprises a substrate comprising a conductive structure, an electronic component over a top side of the substrate and electrically coupled with the conductive structure, a lid structure over the substrate and over the electronic component, and a vertical interconnect in the lid structure extending to a top surface of the lid structure and electrically coupled with the conductive structure. Other examples and related methods are also disclosed herein.

Abstract: A light table apparatus and inspection methods are provided for detecting fluid-transmitting defects in heat exchanger plates using light. The method includes positioning the heat exchanger plate on top of a support frame of the apparatus, and covering peripheral portions of the heat exchanger plate with at least one light-shielding element. In some examples, the light-shielding element may be edge mats that cover peripheral portions of the plate, or alternatively, may be a gasket-like template that engages a resilient light seal with profiles of the heat exchanger plate surrounding a central portion thereof. The ambient environment is darkened and illumination units in the support frame are activated, and light energy can only be transmitted through defects in the central portion. Thus, a quick manual inspection process is provided for such plates, and defects as small as 15 microns are accurately detected when using the light table apparatus and inspection methods.

Abstract: Disclosed are example embodiments of a milling bur specifically designed to mill a dental prosthesis from a full-sintered zirconia blank. The milling bur comprises a milling tip configured to have a factor of safety of at least 2 by having a first coverage-percentage of grinding particles covering a surface area of the tip of the milling bur. The factor of safety is a number of time the milling bur can fully mill a dental prosthesis from a fully-sintered zirconia blank.

Abstract: A computer-implemented method for fitting a spectacle lens, which has a first spectacle lens surface, a second spectacle lens surface, and at least one dioptric power to be obtained, to a spectacle frame with a certain frame edge curve is made available. In the method, a free-form surface formed on a first spectacle lens surface is fitted to the frame edge curve of the spectacle frame. The free-form surface is fitted to the frame edge curve by virtue of the free-form surface and the second spectacle lens surface being optimized with regard to minimizing the difference between the free-form surface edge curve and the frame edge curve and with regard to achieving the at least one dioptric power to be obtained with the spectacle lens.

Abstract: A tactile and/or optical distance sensor includes a housing, which has at least one elongate portion, a measurement arm, which is arranged in the housing, at least partially extends through the elongate portion and has a tactile and/or an optical probe element at one end, a transducer, which is configured to capture a position of the tactile probe element or a signal of the optical probe element and to generate associated probe element measurement signals, and an advance unit, with which the housing is linearly dis-placeable along an advance direction. A strain sensor is located in the region of the measurement arm extending through the elongate portion or at an adjacent region directly adjoining said region. In addition, a system for measuring the roughness of a surface of a workpiece and a method for calibrating a distance sensor or a system are provided.

Abstract: A monitoring process for a grease lubricated rotating system having a processing unit linked to a measurement system for measuring the water content within lubrication grease. A learning period is performed that establishes upper and lower thresholds based on current measurements. If at least a first number of measurements out a second number of last measurements are above the upper threshold then if such is the case, emitting a first event. If at least the first number of measurements out the second number of last measurements are below the lower threshold, then if such is the case, emitting a second event, if at least a first event has been emitted, if such is the case emitting an alarm function of the at least first event.

Abstract: Tool wear monitoring is critical for quality and precision of manufacturing of parts in the machining industry. Existing tool wear monitoring and prediction methods are sensor based, costly and pose challenge in ease of implementation. Embodiments herein provide method and system for monitoring tool wear to estimate Remaining Useful Life (RUL) of a tool in machining is disclosed. The method provides a tool wear model, which combines tool wear physics with data fitting, capture practical considerations of a machining system, which makes the tool wear prediction and estimated RUL more stable, reliable and robust. Further, provides cost effective and practical solution. The disclosed physics based tool wear model for RUL estimation captures privilege of physics of tool wear and easily accessible data from CNC machine to monitor and predict tool wear and RUL of the tool in real-time.

Abstract: There may be provided a machining monitor that may include (i) a sensing unit that comprises a thermal sensor, (ii) a processor, (iii) a communication unit, and (iv) a housing. The thermal sensor is configured to (a) thermally sense a sensed region related to the machining during a machining, and while being rotated by a mechanical coupling to a rotation of a cutting tool, and (b) generate thermal detection signals. The processor is configured to determine a temperature parameter related of the sensed region based on the thermal detection signals.

Abstract: A cemented carbide may include a hard phase including W and C, and a binder phase including cubic Co. The binder phase may include Zr. The Co may include a lattice constant of more than 3.5575 ? and not more than 3.5600 ?. A coated tool may include a coating layer located on a surface of the cemented carbide. A cutting tool may include a holder that is extended from a first end toward a second end and may include a pocket on a side of the first end, and the coated tool located in the pocket.

Abstract: A crack detection method includes a crack forming step of applying a laser beam to a plate-shaped workpiece that has a first side and a second side opposite to the first side linearly from the first side with a focal point of the laser beam positioned inside the workpiece, the laser beam being of a wavelength having a transmitting property to the workpiece, to thereby form a modified layer inside the workpiece and further form a crack extending from the modified layer toward the second side, a coating material applying step of applying a coating material to the second side, and a crack detecting step of detecting the crack by searching for a portion where the coating material is linearly repelled.

Abstract: Various embodiments include apparatus and methods to estimate properties of rock, drill bit, or a combination thereof associated with a drilling operation. The properties can include, but are not limited to, rock chip size, drill bit dullness, drilling efficiency, or a combination selected from rock chip size, drill bit dullness, and drilling efficiency. The estimate may be accomplished from correlating detected acoustic emission with detected electromagnetic emissions. In various embodiments, formation brittleness may be determined. The various estimates may be used to direct a drilling operation. Additional apparatus, systems, and methods are disclosed.

Abstract: An inspection system for a drug container is provided to identify foreign matter, such as particles or fibers, within the drug container prior to filling with a drug. The system includes a camera device aligned with an axis of the drug container and captures a series of images of an interior surface of a sidewall of the drug container while the robot causes relative movement between the drug container and the camera device along a linear path. Atypical lighting, which improves contrast between particles and the background in images is employed to aid detection. A control circuit then processes the series of images to identify foreign matter within the drug container.

Abstract: A method for non-destructively determining a mechanical property of a solid rocket motor propellant grain may comprise applying a force to a surface of the solid rocket motor propellant grain, wherein a deformation is formed on the surface of the solid rocket motor propellant grain in response to the applying, and calculating a value of the mechanical property of the solid rocket motor propellant grain based on the deformation. This process may be performed over time to determine a lifespan of the propellant grain.

Abstract: The present inventive concept relates to a system, and related methods, for facilitating practice of bowling, wherein the system comprises: a data storing device configured to store oil pattern data corresponding to a set of oil patterns for bowling lanes; a projecting arrangement configured to project graphics onto a bowling lane; and a processing unit configured to send, from the data storing device to the projecting arrangement, oil pattern data corresponding to one oil pattern of said set of oil patterns, whereby graphics representing the one oil pattern of said set of oil patterns is projected onto the bowling lane.