Abstract: A beam director for use in 3D printers comprises a first mirror rotating about its longitudinal axis for redirecting a beam onto a second mirror and then onto a work surface, which may result in a beam with a distorted shape. A beam corrector, e.g. a lens or a reflective surface, is used to ensure the beam has the same desired dimensions in the first and second perpendicular direction when striking the work surface.

Abstract: An invention for 2D and/or 3D scanning devices. The invention discloses a method and an apparatus for precise control and regulation of laser processing in order to provide a desired energy density delivered by the scanner across the work surface for printing and/or sensing applications.

Abstract: A beam steering system in which the printhead follows a printpath along a curve, such as printing of a heat exchanger thin walls, typically undergoes errors due to varying beam angles, beam focus and beam speed. The present disclosure provides solutions to error reduction and increases reliability for printing rings and hollow objects related to 3D printing. Accordingly, a wall described by a curve function, may be fabricated using a printhead, which is moved in a print path that keeps the print lines orthogonal to the print path and tangent to the inner center line curve between the outer wall and the inner wall.

Abstract: A beam director for use in 3D printers comprises a first mirror rotating about its longitudinal axis for redirecting a beam onto a second mirror and then onto a work surface, which may result in a beam with a distorted shape. A beam corrector, e.g. a lens or a reflective surface, is used to ensure the beam has the same desired dimensions in the first and second perpendicular direction when striking the work surface.

Abstract: To provide stationary bicycle users and training exercise equipment, such as rowing machines or stationary bicycles with the ability to track their exercise form, and offer corrective action for proper form and better machine usage, the present system and methods describe an activity tracking system. The system includes sensors configured to monitor changes in force distribution of the user on the exercise equipment. The sensors can be configured and positioned to match the majority of stationary bikes and exercise equipment. Responsive to detecting activity data, a computer controller connected to the sensors can associate the data with a baseline and produce suggestive corrective actions for the user to correct their balance and enhance their workout.

Abstract: To provide stationary bicycle users and training exercise equipment, such as rowing machines or stationary bicycles with the ability to track their exercise form, and offer corrective action for proper form and better machine usage, the present system and methods describe an activity tracking system. The system includes sensors configured to monitor changes in force distribution of the user on the exercise equipment. The sensors can be configured and positioned to match the majority of stationary bikes and exercise equipment. Responsive to detecting activity data, a computer controller connected to the sensors can associate the data with a baseline and produce suggestive corrective actions for the user to correct their balance and enhance their workout.

Abstract: A beam director, typically comprises a first mirror rotating about a longitudinal axis, with a reflective surface at an acute angle to the longitudinal axis, which enables a laser beam to be transmitted along the longitudinal axis and redirected onto a work surface, which is typically perpendicular to the longitudinal axis. A second stationary arcuate mirror segment may be used to reflect the beam along an arcuate path on the work surface. Previous beam director systems can be improved or simplified by: 1) elimination of the second mirror with a 90° reflection to the work surface; 2) fixing the Tangent factor when drawing/rendering/sintering/cutting using f-theta like lens; and 3) fixing the Tangent factor by controlling the amount and/or the duration of energy.

Abstract: A beam director for use in 3D printers comprises a first mirror rotating about its longitudinal axis for redirecting a beam onto a second mirror and then onto a work surface, which may result in a beam with a distorted elliptical shape. A beam corrector, e.g. a lens or a reflective surface, is used to ensure the beam has the same dimensions in first and second perpendicular directions.

Abstract: A beam director for use in 3D printers comprises a first mirror rotating about its longitudinal axis for redirecting a beam onto a second mirror and then onto a work surface, which may result in a beam with a distorted elliptical shape. A beam corrector, e.g. a lens or a reflective surface, is used to ensure the beam has the same dimensions in first and second perpendicular directions.

Abstract: A beam director, typically comprises a first mirror rotating about a longitudinal axis, with a reflective surface at an acute angle to the longitudinal axis, which enables a laser beam to be transmitted along the longitudinal axis and redirected onto a work surface, which is typically perpendicular to the longitudinal axis. A second stationary arcuate mirror segment may be used to reflect the beam along an arcuate path on the work surface. Previous beam director systems can be improved or simplified by: 1) elimination of the second mirror with a 90° reflection to the work surface; 2) fixing the Tangent factor when drawing/rendering/sintering/cutting using f-theta like lens; and 3) fixing the Tangent factor by controlling the amount and/or the duration of energy.

Abstract: A beam director comprising; a first reflector mounted towards the center of a horizontal rotatable platform, the platform rotatable by an actuator, the beam director configured to receive a vertical beam from a beam source perpendicular to the ratable platform and the first reflector configured to rotate the beam as the platform rotates and to reflect the beam horizontally to a second reflector mounted on the rotatable platform; the second reflector configured to reflect the beam vertically towards a work surface so that when the beam is activated and the actuator rotates the platform, the vertical beam strikes the rotating first reflector rotating the beam as the platform rotates and reflects the beam to the second reflector which reflects the beam to the work surface; the beam then following a curve path relative to the work surface and trace out an arc on the work surface.

Abstract: The various embodiments herein provide a 3D printing apparatus with a sensor device. The apparatus comprises a base platform, a support frame mounted on the base platform and a print head mounted on the support frame. The print head is aligned with a working surface on which the 3D object to be printed is placed. A sensor device is configured to determine and adjust a spatial parameter between the working surface and a print head. The sensor device is mounted on the print head and detects misalignment in the position of the working surface with the print head. The sensor device employs photo detection method for determining a desired orientation of the working surface. The printing apparatus comprises a controller unit for receiving the input from the sensor device to correct the orientation of the working surface.

Abstract: The various embodiments herein provide a 3D printing apparatus with a sensor device. The apparatus comprises a base platform, a support frame mounted on the base platform and a print head mounted on the support frame. The print head is aligned with a working surface on which the 3D object to be printed is placed. A sensor device is configured to determine and adjust a spatial parameter between the working surface and a print head. The sensor device is mounted on the print head and detects misalignment in the position of the working surface with the print head. The sensor device employs photo detection method for determining a desired orientation of the working surface.

Abstract: PDASync is a module that allows a handheld computing device to communicate with a database running on a host computer. When the PDA is returned to its docking cradle, or is in wireless range, the Sync application, running on a PC, allows the user to select a database which will then have its data updated with data stored on the PDA, and vice-versa.

Abstract: ClientSync is a module that allows a client computer or workstation to communicate with a central database stored on a server. When a network connection is present between the client and the server, the Sync application, running on a PC, allows the user to select a database which will then have its data re-created on the server. The data from the server will then be written back to the local database, thus ensuring all records are up-to-date.