# Method for laser-computer breadboarding

FIELD: computer-laser breadboarding.

SUBSTANCE: using a system for three-dimensional geometric modeling, volumetric model of product is made, separated on thin transverse layers and hard model is synthesized layer-wise, thickness A of transverse layers is picked from condition, where A≤F, where F is an allowed value for nominal profile of model surface and generatrix of model surface profile passes through middle line of transverse layers.

EFFECT: shorter time needed for manufacture of solid model.

1 dwg

The invention relates to a compact intellectual production, in particular to the technology layer forming part of a system of rapid prototyping on the basis of laser-computer layout.

The known method of laser-computer modeling, including the creation of three dimensional geometric model of the product, which splits into thin transverse layers; the control program implements on the actuator trajectory flat sections, connecting the last in the three-dimensional model (see "Technology layer-by-layer synthesis in the creation of three dimensional models for the procurement of production", Svistunov. W-l journal of engineering, No. 1, 1998, p.20-28).

The known method of laser-computer modeling, including the creation by the system of three-dimensional geometric modeling of the virtual three-dimensional model of the future product, its breakdown into thin transverse layers and layer-by-layer synthesis of solid models (see "Gemma-3D and rapid prototyping". M. Lavrov. W-l "CAD and graphics", No. 6, 2002, p.45-47).

In the known methods to ensure the accuracy of dimensions, it is necessary that the thickness of the layer was equal to or less than half the magnitude of the tolerance on the nominal surface profile model, and this leads to an increase in the number of layers and lots of time on the manufacturing firm m is Delhi.

The goal is to reduce the time for manufacturing the solid model.

This object is achieved in that in the method of laser-computer modeling, including the creation by the system of three-dimensional geometric modeling of the virtual three-dimensional model of the future product, its breakdown into thin transverse layers and layer-by-layer synthesis of solid models, the thickness And transverse layers are selected from the conditions under which A≤PD, where PD is the field of tolerance on the nominal surface profile model, and forming a surface profile model passes through the middle line of the transverse layers.

The claimed method is characterized by the following distinctive characteristics: the thickness And transverse layers are selected from the conditions under which A≤PD, where PD is the field of tolerance on the nominal surface profile model", and "forming a surface profile model passes through the middle line of the transverse layers.

Produced research on the patent and scientific literature revealed a number of technical solutions for a similar purpose, however, the distinctive features of the proposed method is not in them. From here it is possible to draw a conclusion on the conformity of the proposed method the eligibility criteria of the invention. The feasibility of the proposed method is illustrated by the attached drawing, where schematic is shown on the model is disaggregated into thin layers.

Using system three-dimensional geometric modeling (damn. not shown because they are well known) create a virtual volumetric model of the future product, and then break it up into layers and produce a layer-by-layer synthesis of solid models using laser (damn. not shown, as is also well known). The thickness And layers are selected from the conditions under which A≤PD, where PD is the field of tolerance on the nominal profile of the NP surface model, the nominal profile of the NP surface model through Central line CL of the transverse layers, and get the actual profile of AF.

The method of laser-computer modeling, including the creation by the system of three-dimensional geometric modeling of the virtual three-dimensional model of the future product, its breakdown into thin transverse layers and layer-by-layer synthesis of solid models, characterized in that the thickness And transverse layers are selected from the conditions under which A ≤ PD, where PD is the field of tolerance on the nominal surface profile model, and forming a surface profile model passes through the middle line of the transverse layers.

**Same patents:**

FIELD: computer-laser breadboarding.

SUBSTANCE: using a system for three-dimensional geometric modeling, volumetric model of product is made, separated on thin transverse layers and hard model is synthesized layer-wise, thickness A of transverse layers is picked from condition, where A≤F, where F is an allowed value for nominal profile of model surface and generatrix of model surface profile passes through middle line of transverse layers.

EFFECT: shorter time needed for manufacture of solid model.

1 dwg

FIELD: technology for layer-wise shape generation as part of accelerated modeling systems based on laser-computer modeling.

SUBSTANCE: in the method by means of three-dimensional geometric modeling system a volumetric model of product is formed, split onto thin transverse layers and layer-wise synthesis of solid model is performed, while transverse layers Coefficient are made of different thickness A, which is determined from appropriate mathematical formula.

EFFECT: less time required for manufacture of solid model.

1 dwg

FIELD: method and equipment for creation of three-dimensional images from sequence of two-dimensional images.

SUBSTANCE: two-dimensional image is analyzed to find out its type of scene. Depending on the type of scene deformation corresponding to this type of scene is chosen. The chosen deformation is used to transform the two-dimensional image and to put it into at least one channel of view. In addition, different transient functions are defined and these functions provide smooth transition without any interference from one deformation to every new deformation.

EFFECT: creation of a method and device which can create three-dimensional images with natural three-dimensional impression almost without operator or viewer interference.

14 cl, 3 dwg

FIELD: information technologies.

SUBSTANCE: method of the formation property analysis contains stages, on which: obtain bore hole diameter data on set of depths of measurements, receive a data set of measurements along the bore hole, display the first layer of three-dimensional model of the bore hole, and the sizes on a circle of the given model of the bore hole correspond to mentioned diameters of the bore hole, display the second layer stretched outside in a radial direction from the first layer, and the second layer represents, at least, some of the mentioned data set of measurements along a trajectory of the bore hole on corresponding depths of measurements, make the analysis mentioned, at least, some of the mentioned data set concerning three-dimensional model of the chink and are made by corrections being based on diameter of the bore hole for reception of the result and give out the given result to the user.

EFFECT: simplification of the analysis the various data sets connected with three-dimensional object and to provide correct perception of geometrical communications between data of measurements and three-dimensional object.

20 cl, 13 dwg

FIELD: information technology.

SUBSTANCE: method involves manually defining at least two contours delineating the structure of interest, the at least two contours lying in two different contouring planes that are different and non-parallel with respect to each other; and automatically fitting a three-dimensional polygonal mesh to the structure of interest in a three-dimensional image or map while respecting the manually defined contours as constraints on vertices of the polygonal mesh.

EFFECT: high accuracy of segmentation of structures of interest.

24 cl, 5 dwg

FIELD: printing.

SUBSTANCE: present invention relates to toner cartridge for use in electrophotographic image forming apparatus. Disclosed toner cartridge for use in image forming apparatus comprises a housing having an upper side, bottom side, front and rear side, located between first lateral side and second lateral side of case; body determines toner storage tank, outlet port, communicated with tank and directed downwards at front side of housing near first lateral side, a gate arranged on outlet port and to displace between open position allowing toner come out from outlet port, and closed position, preventing output of toner from outlet port, toner feed system for transfer of toner of tank through outlet port, containing main gear interface to transmit rotation to toner feed system, a portion of main gears interface is naked on front side of housing near top of second lateral side and is configured to engage with mating drive gear of image forming device facing backwards hole located near first lateral side of housing to receive first interacting element in image forming apparatus for opening and closing gate, and facing forward slot located near first lateral side of housing to receive second interacting element for locking and unlocking of gate.

EFFECT: reduced premature replacement of components, as well as prevention of unwanted escape of toner cartridge through gate in cartridge having position control elements, which provide possibility of accurate positioning cartridge, at same time preventing insertion of cartridge in image forming device at different angles.

26 cl, 28 dwg

FIELD: computer-laser breadboarding.

SUBSTANCE: using a system for three-dimensional geometric modeling, volumetric model of product is made, separated on thin transverse layers and hard model is synthesized layer-wise, thickness A of transverse layers is picked from condition, where A≤F, where F is an allowed value for nominal profile of model surface and generatrix of model surface profile passes through middle line of transverse layers.

EFFECT: shorter time needed for manufacture of solid model.

1 dwg

FIELD: technology for layer-wise shape generation as part of accelerated modeling systems based on laser-computer modeling.

SUBSTANCE: in the method by means of three-dimensional geometric modeling system a volumetric model of product is formed, split onto thin transverse layers and layer-wise synthesis of solid model is performed, while transverse layers Coefficient are made of different thickness A, which is determined from appropriate mathematical formula.

EFFECT: less time required for manufacture of solid model.

1 dwg

FIELD: device for data acquired by shooting at many angles playback, information-carrying medium, which carries this data; machine-readable medium, which carries program code, which provides computer playback method.

SUBSTANCE: information medium contains audio-video data, separated into clips, which are recordings parts, and additional information that deals with transfer points. Playback of defined data device consists of read device and playback unit for defined data playback by searching and playing clip that corresponds to read data; every clip includes information about acquisition time and playback time. "Go to audio-video data acquired by shooting at another angle" command results in addressing the transfer point, which is the initial point of audio-video data acquired by shooting at defined angle.

EFFECT: saved data playback consistency even when angle is changed.

18 cl, 5 dwg

FIELD: navigation in three-dimensional scene on display, possible use together with computer image of three-dimensional object.

SUBSTANCE: in accordance to method, interesting point is connected to supporting form, supporting form tracks shape of observed three-dimensional object in observed three-dimensional scene, and interesting point is held within limits of observed three-dimensional object, and scene is displayed in accordance to navigation action requested by user in observed three-dimensional scene, while holding interesting point within limits of supporting form and within limits of observation area. Navigation actions in two-dimensional representation of three-dimensional object include turn, movement and dimensional scaling.

EFFECT: holding of interesting point on an object during any manipulations with this object, to keep the object in the center of window in display.

2 cl, 10 dwg

FIELD: technology for displaying three-dimensional polygon on display, wherein three-dimensional polygon, which is geometrically incomplete and therefore may not be displayed on screen by means of automatic triangulation in common three-dimensional graphics library, may be shown on screen.

SUBSTANCE: method includes operation of input of three-dimensional models for producing three-dimensional models with three-dimensional coordinates for area, subject for usage on screen, determined on basis of basic positioning coordinates, determined by positioning of vehicle; operation of reproduction of polygons, during which three-dimensional models, introduced at three-dimensional model introduction stage, are classified, in accordance to whether all vertices of polygon are on one and the same plane for three-dimensional model, and polygons are reproduced for classified models based on aforementioned coordinates of basic position, and operation of displaying of polygons on screen, reproduced in operation of reproduction of polygons on screen.

EFFECT: decreased amount of calculations in common three-dimensional graphics library, improved efficiency of processing time usage.

3 cl, 13 dwg

FIELD: technology for imitating movement of virtual jointed object in virtual space.

SUBSTANCE: method for moving virtual mannequin (10) in virtual space includes executing a series of elementary movements. Virtual mannequin (10) contains a set of jointed elements (11), interconnected by a set of joints (12). Relative positions of jointed elements (11) are determined by joint angles in accordance to degrees of freedom.

EFFECT: increased precision of imitation of mannequin movement, prevented mutual collisions of all jointed elements of mannequin by ensuring sliding of various jointed elements over one another.

13 cl, 9 dwg

FIELD: information technology, possible use for designing complex technical products.

SUBSTANCE: method includes selecting data of computer mathematical model, for usage in construction of three-dimensional geometric model of product, series of automatic construction operations is set, data selected by user is read, aforementioned data is transformed to values of geometric parameters of product, from a previously created database, three-dimensional geometric primitive models are extracted, changes of their parameters are altered in accordance with computer mathematical model data, dynamic construction is performed for elements of product which are absent in database, resulting three-dimensional geometrical models of product elements are placed into three-dimensional geometrical models of product assembly and connections are applied, which hold the position of each element of the product in assembly.

EFFECT: reduction of time and computing resources.

1 dwg

FIELD: technology for imitating movement of virtual jointed object in virtual space.

SUBSTANCE: in the method, distance of interaction is computed between jointed object (10) and element of environment (13), on basis of aforementioned distances, interaction of first point (P1), belonging to one of jointed elements (11) of jointed object (10), and second point (P2), belonging to element of space surrounding it (13), deviation of jointed object (10) from element (13d) of environment (13) is determined on basis of first, second points (P1, P2) of unique deviation vector (V), by means of movement, determined in accordance to single deviation vector (V) and influencing global position and/or global orientation, and/or degrees of freedom of jointed object for preventing collision of jointed object (10) with element (13d) of environment.

EFFECT: increased speed of operation.

14 cl, 11 dwg