CN113386356B - Method, device, computer equipment and storage medium for determining printing starting point - Google Patents
Method, device, computer equipment and storage medium for determining printing starting point Download PDFInfo
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- CN113386356B CN113386356B CN202110591238.6A CN202110591238A CN113386356B CN 113386356 B CN113386356 B CN 113386356B CN 202110591238 A CN202110591238 A CN 202110591238A CN 113386356 B CN113386356 B CN 113386356B
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- 238000007639 printing Methods 0.000 title claims abstract description 159
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000003860 storage Methods 0.000 title claims abstract description 14
- 238000004590 computer program Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 claims description 13
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 238000010146 3D printing Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
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- 206010063385 Intellectualisation Diseases 0.000 description 1
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- 238000000016 photochemical curing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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Abstract
The application relates to a method, a device, a computer device and a storage medium for determining a printing start point. The method comprises the following steps: obtaining a model to be printed; slicing the model to be printed to generate a plurality of slice layers; generating a model contour map of each slice layer; and determining a printing starting point based on the model contour map. By adopting the method, a specific point on the model to be printed can be accurately obtained as a printing starting point, instead of being based on the approximate direction of the Z slit after Z slit alignment, so that the accuracy of the printing starting point is improved.
Description
Technical Field
The present application relates to the field of 3D printing technologies, and in particular, to a method and apparatus for determining a printing start point, a computer device, and a storage medium.
Background
Under the push of computer digital technology intellectualization, the application field of 3D printing technology is wider and wider, and meanwhile, 3D printers are also gradually rising. In the process of 3D printing by a 3D printer, a starting point of printing is set by slicing software on a 3D model to be printed, so that subsequent printing operation is finished.
When the existing slicing software sets a printing start point for a 3D model, after aligning the Z seam of the 3D model, a position approximately oriented with respect to the Z seam on the 3D model is generally selected as the printing start point, for example, a position on the 3D model at the left rear with respect to the Z seam is selected as the printing start point.
Therefore, the prior art has a problem that the 3D printing start point cannot be accurately set.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a method, apparatus, computer device, and storage medium for determining a print start point that can accurately set the print start point.
In a first aspect, the present application provides a method for determining a print start point, the method comprising:
Obtaining a model to be printed;
slicing the model to be printed to generate a plurality of slice layers;
generating a model contour map of each slice layer;
A print start point is determined based on the model contour map.
In one embodiment, the method further comprises:
determining a target slice layer from the plurality of slice layers;
A print start point is determined based on the model contour map of the target slice layer.
In one embodiment, the target slice layer includes any one of a preset default print slice layer, a print slice layer determined based on a user instruction, or an abnormal print slice layer.
In one embodiment, determining a print start point based on the model contour map includes:
And determining the printing starting point of each slice layer based on the model contour map of each slice layer.
In one embodiment, determining a print start point for each sliced layer based on the model contour map for each sliced layer includes:
Determining a printing starting point of any slice layer in each slice layer according to an operation instruction input by a user;
And determining the printing starting points of other slice layers in each slice layer according to the three-dimensional coordinates of the printing starting point of any slice layer.
In one embodiment, the three-dimensional coordinates of the printing start point of any slice layer are (x, y, z); according to the three-dimensional coordinates of the printing starting point of any slice layer, determining the printing starting point of other slice layers in each slice layer comprises the following steps:
judging whether the target surface of the model to be printed is perpendicular to a two-dimensional plane in a three-dimensional coordinate system; the two-dimensional plane is a plane formed by any two coordinate axes in the three-dimensional coordinate system;
If the printing start point of the previous slice layer of any slice layer is vertical, determining the printing start point of the previous slice layer of any slice layer as a point with the three-dimensional coordinate of (x, y, z+0.1), and determining the printing start point of the next slice layer of any slice layer as a point with the three-dimensional coordinate of (x, y, z-0.1).
In one embodiment, determining the print start point of the other slice layers in each slice layer according to the three-dimensional coordinates of the print start point of any slice layer includes:
If not, determining the printing starting point of the previous slice layer of any slice layer as the point closest to the x and y coordinates of the printing starting point of any slice layer, and determining the z coordinate value of the point closest to the printing starting point of any slice layer as z+0.1;
and determining the printing starting point of the previous slice layer of any slice layer as a point closest to the x and y coordinates of the printing starting point of any slice layer, and determining the z coordinate value of the point closest to the printing starting point of any slice layer as z+0.1.
In one embodiment, the printing starting point is determined according to an operation instruction input by a user based on the model contour map, wherein the operation instruction comprises position information of the printing starting point; or alternatively;
The print start point is a failure point.
In a second aspect, the present application provides a device for determining a print start point, the device comprising:
The acquisition module is used for acquiring the model to be printed;
The slice layer generation module is used for slicing the model to be printed to generate a plurality of slice layers;
the contour map generation module is used for generating a model contour map of each slice layer;
and the determining module is used for determining the printing starting point based on the model contour map.
In a third aspect, the present application provides a computer device comprising a memory storing a computer program and a processor implementing the steps of the method of any one of the embodiments of the first aspect described above when the computer program is executed by the processor.
In a fourth aspect, the present application provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the method of any of the embodiments of the first aspect described above.
The method, the device, the computer equipment and the storage medium for determining the printing starting point are used for obtaining a model to be printed; slicing the model to be printed to generate a plurality of slice layers; generating a model contour map of each slice layer; a print start point is determined based on the model contour map. The method and the device can accurately acquire a specific point on the model to be printed as a printing starting point instead of being based on the approximate direction of the Z seam after Z seam alignment, and improve the accuracy of the printing starting point.
Drawings
FIG. 1 is an application environment diagram of a method of determining a print start point in one embodiment;
FIG. 2 is a flow chart of a method for determining a print start point in one embodiment;
FIG. 3 is a schematic diagram of a model to be printed in one embodiment;
FIG. 4 is a schematic illustration of a model profile of a slice layer in another embodiment;
FIG. 5 is a flow chart of a method for determining a print start point in another embodiment;
FIG. 6 is a flow chart of a method for determining a print start point in another embodiment;
FIG. 7 is a schematic diagram of a model bounding box to be printed in one embodiment;
FIG. 8 is a flow chart of a method for determining a print start point in another embodiment;
FIG. 9 is a flow chart of a method for determining a print start point in another embodiment;
FIG. 10 is a schematic diagram showing the construction of a print start point determining apparatus in one embodiment;
Fig. 11 is a schematic structural view of a printing start point determining device in another embodiment;
fig. 12 is an internal structural diagram of a computer device in one embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The method for determining the printing starting point provided by the application can be applied to an application environment shown in fig. 1. The application environment includes a terminal 102 and a printer 104. Wherein the terminal 102 communicates with the printer 104 via a network. The terminal 102 may model the model to be printed; and slicing the model to be printed after modeling is completed, generating a plurality of slice layers, determining the start point of printing of the model to be printed by each slice layer, and then driving the printer 104 to start printing at the start point of printing through network communication. The terminal 102 may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices; the printer 104 may be, but is not limited to, a fused deposition rapid prototyping printer, a photo-curing prototyping printer, a three-dimensional powder bonding printer, a selective laser sintering printer, a split-into-solid fabrication printer, a die-less fabrication technology printer.
In one embodiment, as shown in fig. 2, a method for determining a printing start point is provided, and the method is applied to the terminal in fig. 1 for illustration, and includes the following steps:
S202, acquiring a model to be printed.
Specifically, when a user needs to perform 3D printing, firstly, a model to be printed can be constructed on modeling software; after the model is built, the model to be printed is imported into slicing software to confirm the printing starting point of the model to be printed, and the model to be printed is obtained.
S204, slicing the model to be printed to generate a plurality of slice layers.
Specifically, the model to be printed may be sliced horizontally according to the height of the model to be printed, so as to generate a plurality of sliced layers with equal thickness, or sliced layers with unequal thickness may be generated, which is not limited herein. The model to be printed may be vertically sliced according to the width of the model to be printed to generate a plurality of sliced layers with equal thickness, or sliced layers with unequal thickness may be generated, which is not limited herein. The model to be printed can be vertically sliced according to the length of the model to be printed to generate a plurality of slice layers with equal thickness, or slice layers with unequal thickness can be generated, which is not limited herein.
S206, generating a model contour map of each slice layer.
Specifically, after generating a plurality of slice layers, each slice layer has a model outline of the model to be printed. The terminal automatically generates an editable model contour map formed by coordinate points according to the graph of the model to be printed on each slice layer. Wherein the model contour map is an editable contour map composed of coordinate points. For example, as shown in fig. 3, fig. 3 is a schematic diagram of a model to be printed, and fig. 4 is a model outline of one layer of the model to be printed shown in fig. 3 after slicing.
S208, determining a printing starting point based on the model contour map.
Specifically, since the model contour map is an editable contour map composed of coordinate points. The user can obtain the coordinate information of any point of each model contour map by clicking the point based on the model contour map of each slice layer, and the point selected by the user is used as the printing starting point of each slice layer. It is also possible to first determine any one of the slice layers as the target slice layer, obtain coordinate information of any point on the model contour map corresponding to the target slice layer by the user based on the model contour map of the target slice layer, and use the point selected by the user as the printing start point of the target slice layer, which is not limited herein.
Optionally, determining the bounding box size of the model to be printed according to the model to be printed; and cutting the model to be printed into a plurality of slice layers with equal thickness along the horizontal direction according to the size of the bounding box.
Specifically, since the model to be printed is a 3D model, the model to be printed is a closed or semi-closed bounding box, and after the model to be printed is imported into slicing software, the bounding box size of the model to be printed, namely the length, width and height of the model to be printed, can be automatically determined. By way of example, fig. 5 is a schematic diagram of a bounding box of a model to be printed having dimensions of 75.36mm by 96.31mm by 5.00mm, wherein 75.36mm in length, 96.31mm in width, and 5.00mm in height.
After the bounding box size of the model to be printed is obtained, the model to be printed can be cut into a plurality of slice layers with equal thickness along the horizontal direction according to the height size in the bounding box size. For example, referring to fig. 5, the height of the surrounding size of the model to be printed is 5mm, and then the model to be printed may be cut into 5 sliced layers having a thickness of 1mm in the horizontal direction.
In the method for determining the printing starting point, a model to be printed is obtained; slicing the model to be printed to generate a plurality of slice layers; generating a model contour map of each slice layer; a print start point is determined based on the model contour map. The method and the device have the advantages that a specific point on the model to be printed can be accurately obtained as a printing starting point, instead of being based on the approximate direction of the Z seam after the Z seam is aligned, accuracy of the printing starting point is improved, meanwhile, the model to be printed can be sliced, a plurality of slicing layers are generated, after the model contour map of each slicing layer is generated, a user determines the printing starting point according to the model contour map, and accuracy of the printing starting point is further improved.
The foregoing embodiment describes a method for determining a print start point, in which, in the process of determining a print start point, a target slice layer may be first selected when generating a plurality of slice layers, and then the print start point of the entire model to be printed is determined based on the slice layer, and in one embodiment, the method for determining a print start point is further described, and in one embodiment, as shown in fig. 6, the method for determining a print start point further includes:
S602, determining a target slice layer from the plurality of slice layers.
Optionally, the target slice layer includes any one of a preset default print slice layer, a print slice layer determined based on a user instruction, or an abnormal print slice layer.
Specifically, when generating multiple slice layers, each slice layer has a layer identifier, a default print slice layer of the system may be taken as a target slice layer, for example, if the default print slice layer of the system is the 0 th layer, that is, the bottommost layer in the slice layers, the 0 th layer is taken as the target slice layer. The user instruction can also be triggered by selecting the designated slice to be printed by the user, wherein the user instruction comprises the layer identification of the target slice layer, and the slice layer selected by the user is taken as the target slice layer based on the user instruction. When the printer prints, the printer may stop printing, and the slice layer corresponding to the stop printing may be the target slice layer, which is not limited herein.
S604, determining a printing starting point based on the model contour map of the target slice layer.
Specifically, after the target slice layer is determined, and then the model contour map of the target slice layer is determined, at this time, the user may determine the printing start point by clicking any point on the model contour map formed by the coordinate points as the printing start point and recording the coordinate information of the printing start point.
In this embodiment, by determining a target slice layer from among a plurality of slice layers, a print start point is determined based on a model contour map of the target slice layer. The printing starting point of the target slice layer in the model to be printed can be accurately obtained, and the accuracy of determining the printing starting point is further improved.
The foregoing embodiment describes a method for determining a print start point, and the method for determining a print start point according to one embodiment is further described, in one embodiment, determining a print start point based on a model contour map, including:
And determining the printing starting point of each slice layer based on the model contour map of each slice layer.
Specifically, the coordinate information of the printing start point of each slice layer can be obtained on each model contour map by clicking any point on the model contour map by a user based on the model contour map corresponding to each slice layer, that is, the printing start point of each slice layer is determined. Here, the print start points of the slice layers may be set to the same point or the print start points of the slice layers may be set to different points, which is not limited herein.
Further, as shown in fig. 7, determining the print start point of each slice layer based on the model contour map of each slice layer includes:
S702, determining the printing starting point of any slice layer in each slice layer according to an operation instruction input by a user.
Specifically, clicking can be performed according to a model contour diagram of each slice layer, and the printing starting point of any slice layer, namely an operation instruction input by a user, can be randomly determined.
S704, determining the printing starting point of other slice layers in each slice layer according to the three-dimensional coordinates of the printing starting point of any slice layer.
Specifically, it may be first determined whether or not the target surface of the model to be printed is perpendicular to the xy plane in the three-dimensional coordinate system. If the printing start point of the previous slice layer of any slice layer is vertical, determining the printing start point of the previous slice layer of any slice layer as a point with the three-dimensional coordinate of (x, y, z+0.1), and determining the printing start point of the next slice layer of any slice layer as a point with the three-dimensional coordinate of (x, y, z-0.1).
Further, the previous slice or the next slice is taken as a new arbitrary slice, and the printing start point of the previous slice of the arbitrary slice is determined as a point with the three-dimensional coordinates of (x, y, z+0.1), and the printing start point of the next slice of the arbitrary slice is determined as a point with the three-dimensional coordinates of (x, y, z-0.1), until the printing start points of the other slices of each slice are all determined.
If not, determining the printing starting point of the previous slice layer of any slice layer as the point closest to the x and y coordinates of the printing starting point of any slice layer, and determining the z coordinate value of the point closest to the printing starting point of any slice layer as z+0.1;
and determining the printing starting point of the previous slice layer of any slice layer as a point closest to the x and y coordinates of the printing starting point of any slice layer, and determining the z coordinate value of the point closest to the printing starting point of any slice layer as z+0.1.
Further, the previous slice layer or the next slice layer is taken as a new arbitrary slice layer, the printing starting point of the previous slice layer of the arbitrary slice layer is determined as the point closest to the x coordinate and the y coordinate of the printing starting point of the arbitrary slice layer, and the z coordinate value of the point closest to the printing starting point of the arbitrary slice layer is determined as z+0.1; and determining the printing starting point of the previous slice layer of any slice layer as a point closest to the x and y coordinates of the printing starting point of any slice layer, and determining the z coordinate value of the point closest to the printing starting point of any slice layer as z+0.1 until the printing starting points of other slice layers of each slice layer are all determined.
In this embodiment, the print starting point of each slice layer is determined based on the model contour map of each slice layer, so that the accurate print starting point of the model to be printed can be obtained by directly determining the coordinate information of the print starting point on the model contour map by the user, the accuracy of determining the print starting point is improved, and meanwhile, the print starting point of other slice layers can be automatically determined according to the print starting point of any slice layer.
The above embodiment has described the determination of the print start point based on the model contour map in the determination method of the print start point, and further description will be made of how the print start point is determined based on the model contour map in one embodiment. In one embodiment, the printing starting point is determined according to an operation instruction input by a user based on the model contour map, wherein the operation instruction comprises position information of the printing starting point; or alternatively; the print start point is a failure point.
Specifically, the user can click on the model outline drawing, select any point as a printing starting point, trigger an operation instruction, wherein the operation instruction comprises coordinate information of the printing starting point, and send the coordinate information of the printing starting point to the printer driver printer to print the model to be printed according to the printing starting point. In the printing process, when the printing is abnormal, the printer records the slice layer where the fault point is located and the coordinate information of the fault point and sends the coordinate information to the terminal. Therefore, the terminal can take the failure point as a printing start point when printing again based on the model contour map of the slice layer where the failure point is located.
For the convenience of understanding of those skilled in the art, a method for determining a printing start point will be further described in one embodiment, and in one embodiment, as shown in fig. 8, the method for determining a printing start point includes:
S801, a model to be printed is acquired.
S802, determining the bounding box size of the model to be printed according to the model to be printed.
S803, cutting the model to be printed into a plurality of slice layers with equal thickness along the horizontal direction according to the size of the bounding box.
S804, generating a model contour map of each slice layer.
S805, determining the printing starting point of each slice layer based on the model contour map of each slice layer. Wherein the positions of the printing starting points of the slice layers are different. The printing starting point is determined according to an operation instruction input by a user based on the model outline drawing, and the operation instruction comprises position information of the printing starting point; or alternatively; the print start point is a failure point.
For a specific definition of the method for determining the printing start point, reference may be made to the definition of the method for determining the printing start point hereinabove, and the description thereof will not be repeated.
In the present embodiment, a model to be printed is acquired; slicing the model to be printed to generate a plurality of slice layers; generating a model contour map of each slice layer; a print start point is determined based on the model contour map. The coordinate information of a specific point on the model to be printed can be accurately obtained, the point corresponding to the coordinate information is determined to be the printing starting point, the coordinate information is not based on the approximate direction of the Z slit after Z slit alignment of the model to be printed, and the accuracy of the printing starting point is improved.
In another embodiment, as shown in fig. 9, the method for confirming the printing start point includes:
S811, obtaining a model to be printed.
S812, determining the bounding box size of the model to be printed according to the model to be printed.
S813, cutting the model to be printed into a plurality of slice layers with equal thickness along the horizontal direction according to the size of the bounding box.
S814, generating a model contour map of each slice layer.
S815, a target slice layer is determined from the plurality of slice layers.
S816, determining a printing starting point based on the model contour map of the target slice layer.
For a specific definition of the method for determining the printing start point, reference may be made to the definition of the method for determining the printing start point hereinabove, and the description thereof will not be repeated.
In the present embodiment, a model to be printed is acquired; slicing the model to be printed to generate a plurality of slice layers; generating a model contour map of each slice layer; a print start point is determined based on the model contour map. The coordinate information of a specific point on the model to be printed can be accurately obtained, the point corresponding to the coordinate information is determined to be the printing starting point, the coordinate information is not based on the approximate direction of the Z slit after Z slit alignment of the model to be printed, and the accuracy of the printing starting point is improved.
It should be understood that, although the steps in the flowcharts of fig. 2-9 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 2-9 may include multiple steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of the steps or stages in other steps or other steps.
The foregoing embodiment describes a method for determining a printing start point, and an embodiment describes a device for determining a printing start point, and in one embodiment, as shown in fig. 10, there is provided a device for determining a printing start point, including:
An acquisition module 901, configured to acquire a model to be printed;
The slice layer generating module 902 is configured to slice the model to be printed to generate a plurality of slice layers;
a contour map generating module 903, configured to generate a model contour map of each slice layer;
a determining module 904 for determining a print start point based on the model profile.
In this embodiment, since the determination means of the printing start point includes: the acquisition module acquires a model to be printed; the slice layer generation module performs slicing on the model to be printed to generate a plurality of slice layers; the contour map generating module generates a model contour map of each slice layer; the determination module determines a print start point based on the model contour map. The method and the device can accurately acquire a specific point on the model to be printed as a printing starting point instead of being based on the approximate direction of the Z seam after Z seam alignment, and improve the accuracy of the printing starting point.
In one embodiment, as shown in fig. 11, the apparatus for determining a print start point further includes:
A target slice layer determination module 905 for determining a target slice layer from a plurality of slice layers; the target slice layer may optionally include any one of a preset default print slice layer, a print slice layer determined based on a user instruction, or an abnormal print slice layer.
A print start point determination module 906 for determining a print start point based on the model profile of the target slice layer.
Optionally, the printing starting point is determined according to an operation instruction input by a user based on the model contour map, wherein the operation instruction comprises position information of the printing starting point; or alternatively; the print start point is a failure point.
In one embodiment, the determining module 904 is specifically configured to determine a print starting point of each slice layer based on the model contour map of each slice layer.
In one embodiment, the determining module 904 is specifically configured to determine, according to an operation instruction input by a user, a printing start point of any slice layer in each slice layer; judging whether the target surface of the model to be printed is perpendicular to an xy plane in a three-dimensional coordinate system; if the printing start point of the previous slice layer of any slice layer is vertical, determining the printing start point of the previous slice layer of any slice layer as a point with the three-dimensional coordinate of (x, y, z+0.1), and determining the printing start point of the next slice layer of any slice layer as a point with the three-dimensional coordinate of (x, y, z-0.1). If not, determining the printing starting point of the previous slice layer of any slice layer as the point closest to the x and y coordinates of the printing starting point of any slice layer, and determining the z coordinate value of the point closest to the printing starting point of any slice layer as z+0.1; and determining the printing starting point of the previous slice layer of any slice layer as a point closest to the x and y coordinates of the printing starting point of any slice layer, and determining the z coordinate value of the point closest to the printing starting point of any slice layer as z+0.1.
The specific definition of the means for determining the printing start point may be referred to as definition of the method for determining the printing start point hereinabove, and will not be described herein. The respective modules in the above-described printing start point determining means may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a terminal, and the internal structure thereof may be as shown in fig. 12. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method of determining a print start point. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in FIG. 12 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In an embodiment, a computer device is provided comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method of any of the embodiments described above when the computer program is executed.
In an embodiment, a computer readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method of any of the embodiments described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in various forms such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. A method of determining a print start point, the method comprising:
Obtaining a model to be printed;
slicing the model to be printed along the horizontal direction according to the size of the bounding box of the model to be printed, and generating a plurality of slice layers; the bounding box size comprises the length, width and height of the model to be printed; the thickness of each slice layer is the same;
Generating a model contour map of each slice layer according to the graph of the model to be printed on each slice layer; the model contour map is an editable contour map composed of a plurality of coordinate points with three-dimensional coordinate information;
Clicking an operation instruction input by any one coordinate point on the model contour diagram of any one slice layer in each slice layer according to the model contour diagram of each slice layer by a user, determining the any one coordinate point as a printing starting point of the any one layer, and determining coordinate information of the any one coordinate point as three-dimensional coordinates of the printing starting point of the any one layer;
judging whether the target surface of the model to be printed is vertical to an xy plane in a three-dimensional coordinate system according to the three-dimensional coordinates (x, y, z) of the printing starting point of any slice layer, if so, executing the steps of determining the printing starting point of the slice layer above the any slice layer as a point with the three-dimensional coordinates of (x, y, z+0.1) and determining the printing starting point of the slice layer below the any slice layer as a point with the three-dimensional coordinates of (x, y, z-0.1);
If not, determining the printing starting point of the previous slice layer of the arbitrary slice layer as a point closest to the x and y coordinates of the printing starting point of the arbitrary slice layer, and determining the z coordinate value of the point closest to the printing starting point of the arbitrary slice layer in the previous slice layer as z+0.1; and determining the printing starting point of the next slice layer of any slice layer as a point closest to the x and y coordinates of the printing starting point of any slice layer, and determining the z coordinate value of the point closest to the printing starting point of any slice layer in the next slice layer as z-0.1 until the printing starting points of other slice layers of each slice layer are all determined, so as to obtain the printing starting point of each slice layer.
2. The method according to claim 1, wherein the method further comprises:
determining a target slice layer from the plurality of slice layers;
and determining the printing starting point based on the model contour map of the target slice layer.
3. The method of claim 2, wherein the target slice layer comprises any one of a preset default print slice layer, a print slice layer determined based on a user instruction, or an abnormal print slice layer.
4. The method of claim 1, wherein the obtaining the model to be printed comprises:
And constructing the model to be printed on modeling software.
5. The method of claim 1, wherein slicing the model to be printed in a horizontal direction according to a bounding box size of the model to be printed, before generating a plurality of slice layers, further comprises:
and determining the bounding box size of the model to be printed according to the model to be printed.
6. The method according to claim 1, characterized in that the type of bounding box of the model to be printed is closed or semi-closed.
7. The method according to any one of claims 1 to 6, wherein the operation instruction includes position information of the printing start point; or alternatively
The printing starting point is a fault point.
8. A print start point determining apparatus, the apparatus comprising:
The acquisition module is used for acquiring the model to be printed;
The slice layer generation module is used for slicing the model to be printed along the horizontal direction according to the bounding box size of the model to be printed, so as to generate a plurality of slice layers; the bounding box size comprises the length, width and height of the model to be printed; the thickness of each slice layer is the same;
The contour map generation module is used for generating a model contour map of each slice layer according to the graph of the model to be printed on each slice layer; the model contour map is an editable contour map composed of a plurality of coordinate points with three-dimensional coordinate information;
The determining module is used for determining any one coordinate point as a printing starting point of any one layer according to an operation instruction input by a user on the basis of the model contour diagram of each slice layer by clicking any one coordinate point on the model contour diagram of any one slice layer, and determining coordinate information of any one coordinate point as three-dimensional coordinates of the printing starting point of any one layer;
judging whether the target surface of the model to be printed is vertical to an xy plane in a three-dimensional coordinate system according to the three-dimensional coordinates (x, y, z) of the printing starting point of any slice layer, if so, executing the steps of determining the printing starting point of the slice layer above the any slice layer as a point with the three-dimensional coordinates of (x, y, z+0.1) and determining the printing starting point of the slice layer below the any slice layer as a point with the three-dimensional coordinates of (x, y, z-0.1);
If not, determining the printing starting point of the previous slice layer of the arbitrary slice layer as a point closest to the x and y coordinates of the printing starting point of the arbitrary slice layer, and determining the z coordinate value of the point closest to the printing starting point of the arbitrary slice layer in the previous slice layer as z+0.1; and determining the printing starting point of the next slice layer of any slice layer as a point closest to the x and y coordinates of the printing starting point of any slice layer, and determining the z coordinate value of the point closest to the printing starting point of any slice layer in the next slice layer as z-0.1 until the printing starting points of other slice layers of each slice layer are all determined, so as to obtain the printing starting point of each slice layer.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 7 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.
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| CN115139528B (en) * | 2022-06-10 | 2024-04-16 | 深圳市纵维立方科技有限公司 | Slice processing method and device in 3D printing, storage medium and electronic equipment |
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| CN108297436A (en) * | 2017-12-08 | 2018-07-20 | 珠海赛纳打印科技股份有限公司 | Method of printing and printing device |
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