CN113370521A - Model printing method, model printing device, computer equipment and storage medium - Google Patents

Model printing method, model printing device, computer equipment and storage medium Download PDF

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Publication number
CN113370521A
CN113370521A CN202110572940.8A CN202110572940A CN113370521A CN 113370521 A CN113370521 A CN 113370521A CN 202110572940 A CN202110572940 A CN 202110572940A CN 113370521 A CN113370521 A CN 113370521A
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China
Prior art keywords
model
printed
printing
slice
keel structure
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CN202110572940.8A
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Chinese (zh)
Inventor
敖丹军
唐京科
唐琛剑
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Shenzhen Chuangxiang 3D Technology Co Ltd
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Shenzhen Chuangxiang 3D Technology Co Ltd
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Priority to CN202110572940.8A priority Critical patent/CN113370521A/en
Publication of CN113370521A publication Critical patent/CN113370521A/en
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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
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
    • 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
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • 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
    • 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
    • B33Y10/00—Processes of additive manufacturing
    • 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
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)

Abstract

The application relates to a model printing method, a model printing device, computer equipment and a storage medium, and is applicable to the technical field of 3D printing. The method comprises the following steps: receiving hardness or/and filling rate corresponding to the 3D model to be printed and input by a user; determining a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed; the keel structure is formed by a plurality of solid rectangular columns which are connected with each other; and carrying out layered printing on the 3D model to be printed containing the keel structure. By adopting the method, the printing time can be shortened and printing consumables can be reduced under the condition of ensuring the firmness of the 3D model.

Description

Model printing method, model printing device, computer equipment and storage medium
Technical Field
The present application relates to the field of 3D printing technologies, and in particular, to a model printing method and apparatus, a computer device, and a storage medium.
Background
As one of leading-edge technologies with a great development prospect and a wide application space, 3D printing has almost become "popular worldwide". At present, 3D printing is being applied deeply in the fields of education, medical treatment, automobiles, aerospace and the like, and the value of the printing in the business landing process is reflected continuously.
The types of technologies for 3D printing are increasing, such as FDM 3D printing technology, SLA3D printing technology, SLS3D printing technology, and the like. At present, research shows that the most popular is the FDM (fused deposition modeling) 3D printing technology.
In the conventional art, in order to ensure the firmness of the 3D model, the inside of the 3D model needs to be completely filled in the 3D model printing process, so as to ensure the hardness of the 3D model. Because, carry out whole packing to 3D model inside, consequently, above-mentioned conventional art has greatly increased printing time, has also consumed more printing consumables simultaneously, has increased the printing cost.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a model printing method, apparatus, computer device and storage medium, which can shorten the printing time and reduce the number of printing consumables while ensuring the robustness of a3D model.
In a first aspect, there is provided a model printing method, the method comprising: receiving hardness or/and filling rate corresponding to the 3D model to be printed and input by a user; determining a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed; the keel structure is formed by a plurality of solid rectangular columns which are connected with each other; and (4) carrying out layered printing on the 3D model to be printed containing the keel structure.
In one embodiment, determining a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed, includes: determining the bottom area of each solid rectangular column and the space between each solid rectangular column according to the hardness or/and the filling rate corresponding to the 3D model to be printed; determining the height of each solid rectangular column according to the height of the 3D model to be printed; the keel structure is determined based on the bottom area of each solid rectangular column, the height of each solid rectangular column and the spacing between each solid rectangular column.
In one embodiment, the 3D model to be printed, which includes a keel structure, is printed in layers, including: slicing the 3D model to be printed containing the keel structure to generate slice data, wherein the slice data comprises printing data corresponding to the external outline of the 3D model to be printed and printing data corresponding to the keel structure; and printing the 3D model to be printed containing the keel structure based on the slice data.
In one embodiment, slicing the 3D model to be printed containing the keel structure to generate slice data includes: cutting a to-be-printed 3D model containing a keel structure into a plurality of layers of slices with preset thicknesses, wherein each slice comprises an external outline and the keel structure of the to-be-printed 3D model; based on the external contour and the keel structure included in each slice, slice data corresponding to each slice is generated.
In one embodiment, printing a3D model to be printed containing keel structures based on slice data includes: printing the external contour corresponding to each slice based on the printing data corresponding to the external contour of the 3D model to be printed, which is included in the slice data corresponding to each slice; and printing the internal filling structures corresponding to the slices respectively based on the printing data corresponding to the keel structures included in the slice data corresponding to the slices respectively.
In one embodiment, printing the internal filling structure corresponding to each slice based on the print data corresponding to the keel structure included in the slice data corresponding to each slice includes: generating a plurality of solid rectangular areas corresponding to the slices respectively based on the printing data corresponding to the keel structures included in the slice data corresponding to the slices respectively; connecting the solid rectangular areas by using a preset number of printing strips to generate rectangular connecting layers; and printing the internal filling structures corresponding to the slices respectively based on the rectangular connecting layers.
In one embodiment, printing the internal filling structure corresponding to each slice based on each rectangular connection layer comprises: generating a profile layer corresponding to each external profile based on print data corresponding to the external profile included in the slice data corresponding to each slice; performing intersection operation on each rectangular connecting layer and each outline layer by using a preset graphic algorithm to generate a rectangular connecting layer corresponding to each outline layer; and printing the internal filling structures corresponding to the slices respectively based on the rectangular connecting layers corresponding to the outline layers.
In a second aspect, there is provided a model printing apparatus comprising:
the receiving module is used for receiving the hardness or/and the filling rate corresponding to the 3D model to be printed, which is input by a user;
the determining module is used for determining a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed; the keel structure is formed by a plurality of solid rectangular columns which are connected with each other;
and the printing module is used for printing the 3D model to be printed containing the keel structure in a layered manner.
In a third aspect, there is provided a computer apparatus comprising a memory storing a computer program and a processor implementing the model printing method as described in any one of the above when the processor executes the computer program.
In a fourth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a model printing method as in any one of the above.
According to the model printing method, the model printing device, the computer equipment and the storage medium, the hardness or/and the filling rate corresponding to the 3D model to be printed, which are input by a user, are received, and the keel structure filled in the 3D model to be printed is determined according to the hardness or/and the filling rate corresponding to the 3D model to be printed. And (4) carrying out layered printing on the 3D model to be printed containing the keel structure. In the conventional method, in order to ensure the hardness of the 3D model to be printed, the filling rate inside the 3D model to be printed is usually made to be high, even completely filled, so that a large amount of consumables and printing time are wasted. In the method, the keel structure filled in the 3D model to be printed is determined based on the hardness or/and the filling rate corresponding to the 3D model to be printed, wherein the keel structure can reduce the filling rate of the 3D model to be printed under the condition of ensuring the hardness of the 3D model to be printed. Therefore, the filling rate inside the 3D model to be printed can be made smaller under the condition that the hardness of the 3D model to be printed is ensured, and thus, the consumables of the 3D model to be printed are made smaller. In addition, assuming that the filling rate of the 3D model to be printed is determined to be 50%, in the conventional technology, the inside of the 3D model to be printed is filled in the air, so that the hardness of the 3D model to be printed is reduced. In the method, the keel structure is selected to fill the interior of the 3D model to be printed, so that the hardness of the 3D model to be printed is ensured under the condition of low filling rate. And to the 3D model of waiting to print that contains keel structure, when carrying out the layering and printing, not only make the consumptive material that contains keel structure waiting to print the 3D model less, and print time has also shortened. Therefore, the printing time is shortened, printing consumables are reduced, and the printing cost is reduced under the condition that the firmness degree of the 3D model to be printed is guaranteed.
Drawings
FIG. 1 is a diagram of an application environment of a model printing method in one embodiment;
FIG. 2 is a schematic flow chart diagram illustrating a method for printing a model in one embodiment;
FIG. 3 is a schematic flow chart diagram illustrating the model printing step in one embodiment;
FIG. 4 is a schematic flow chart diagram of a method of printing a model in another embodiment;
FIG. 5 is a schematic flow chart diagram of a method of printing a model in another embodiment;
FIG. 6 is a schematic flow chart diagram of a method of printing a model in another embodiment;
FIG. 7 is a schematic flow chart diagram of a method of printing a model in another embodiment;
FIG. 8 is a schematic view of a rectangular connection layer in a model printing method according to another embodiment;
FIG. 9 is a schematic flow chart diagram of a method of printing a model in another embodiment;
FIG. 10 is a schematic flow chart diagram of a method of printing a model in another embodiment;
FIG. 11 is a block diagram showing the construction of a model printing apparatus according to one embodiment;
FIG. 12 is a block diagram showing the construction of a model printing apparatus according to one embodiment;
FIG. 13 is a block diagram showing the configuration of a model printing apparatus according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The model printing method provided by the application can be applied to computer equipment shown in FIG. 1. The computer device may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, portable wearable devices, and smart printers. The internal structure of the computer device may be as shown in fig. 1. 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 comprises a nonvolatile 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 an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication 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 model printing method. 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, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 1 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment of the present application, as shown in fig. 2, there is provided a model printing method, which is described by taking the method as an example applied to the computer device in fig. 1, and includes the following steps:
step 201, a computer device receives hardness or/and filling rate corresponding to a3D model to be printed, which is input by a user.
Optionally, the user may input the 3D model to be printed and the hardness and the filling rate corresponding to the 3D model to be printed to the computer device by using an input component of the computer device. So that the computer device can receive the hardness and the filling rate corresponding to the 3D model to be printed, which are input by the user.
Optionally, the user may input the to-be-printed 3D model and the hardness corresponding to the to-be-printed 3D model to the computer device by using an input component of the computer device, and the computer device calculates the filling rate corresponding to the to-be-printed 3D model based on the internal filling volume of the to-be-printed 3D model and the hardness corresponding to the to-be-printed 3D model.
Optionally, the user may input the to-be-printed 3D model and the filling rate corresponding to the to-be-printed 3D model to the computer device by using an input component of the computer device, and the computer device calculates the maximum hardness corresponding to the to-be-printed 3D model when the filling rate corresponding to the to-be-printed 3D model is the filling rate input by the user based on the internal filling volume of the to-be-printed 3D model and the filling rate corresponding to the to-be-printed 3D model, and determines whether the maximum hardness meets the standard hardness requirement corresponding to the to-be-printed 3D model. And if the maximum hardness corresponding to the 3D model to be printed does not meet the standard hardness requirement corresponding to the 3D model to be printed, prompting a user to input the filling rate corresponding to the 3D model to be printed again until the calculated maximum hardness corresponding to the 3D model to be printed meets the standard hardness requirement corresponding to the 3D model to be printed according to the filling rate corresponding to the 3D model to be printed input by the user.
Step 202, the computer device determines a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed.
Wherein, keel structure comprises a plurality of solid rectangle post of interconnect. The keel structure can guarantee to treat the support degree of printing the 3D model under the less condition of consumptive material to guarantee to treat the hardness of printing the 3D model.
Optionally, after receiving the hardness or/and the filling rate corresponding to the 3D model to be printed, which is input by the user, the computer device may input the 3D model to be printed and the hardness and the filling rate corresponding to the 3D model to be printed into a preset algorithm, where the preset algorithm outputs a keel structure filled in the 3D model to be printed.
The preset algorithm may be a set of professional calculation method determined by a professional after repeated research.
Exemplarily, the keel structure filled in the 3D model to be printed can be obtained by calculation according to the internal filling volume of the 3D model to be printed, the hardness of the 3D model to be printed, the filling rate of the 3D model to be printed and the bearing condition of each solid rectangular column.
The preset algorithm can also be determined after deep learning network training. The training process of the preset algorithm can be inputting a training set, and training the deep learning network by using the training set to obtain the preset algorithm. The training set may include a plurality of 3D models, a hardness or/and a filling rate corresponding to each 3D model, and a keel structure filled inside each 3D model.
And 203, carrying out layered printing on the 3D model to be printed containing the keel structure by the computer equipment.
Specifically, after the computer equipment calculates the keel structure to be filled in the 3D model to be printed, the segmentation of the 3D model to be printed containing the keel structure can be divided into a plurality of slices, each slice is sequentially printed on the 3D model to be printed containing the keel structure according to the sequence from top to bottom or from bottom to top based on the plurality of slices, and finally, the printing of the 3D model to be printed is completed.
According to the model printing method, the computer equipment receives the hardness or/and the filling rate corresponding to the 3D model to be printed, which is input by a user, and determines the keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed. And the computer equipment carries out layered printing on the 3D model to be printed containing the keel structure. In the conventional method, in order to ensure the hardness of the 3D model to be printed, the filling rate inside the 3D model to be printed is usually made to be high, even completely filled, so that a large amount of consumables and printing time are wasted. In the method, the computer device determines the keel structure filled in the 3D model to be printed based on the hardness or/and the filling rate corresponding to the 3D model to be printed, wherein the keel structure can reduce the filling rate of the 3D model to be printed under the condition of ensuring the hardness of the 3D model to be printed. Therefore, the filling rate inside the 3D model to be printed can be made smaller under the condition that the hardness of the 3D model to be printed is ensured, and thus, the consumables of the 3D model to be printed are made smaller. . In addition, assuming that the filling rate of the 3D model to be printed is determined to be 50%, in the conventional technology, the inside of the 3D model to be printed is filled in the air, so that the hardness of the 3D model to be printed is reduced. In the method, the keel structure is selected to fill the interior of the 3D model to be printed, so that the hardness of the 3D model to be printed is ensured under the condition of low filling rate. And computer equipment is to the 3D model of waiting to print that contains keel structure, when carrying out the layering and printing, not only makes the consumptive material that contains keel structure's 3D model of waiting to print less, and printing time has also shortened. Therefore, the printing time is shortened, printing consumables are reduced, and the printing cost is reduced under the condition that the firmness degree of the 3D model to be printed is guaranteed.
In an embodiment of the present application, as shown in fig. 3, the step 202 of "determining a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed" may include the following steps:
step 301, the computer device determines the base area of each solid rectangular column and the distance between each solid rectangular column according to the hardness or/and the filling rate corresponding to the 3D model to be printed.
Optionally, the computer device may determine the base area of each solid rectangular column and the distance between each solid rectangular column according to the hardness corresponding to the 3D model to be printed.
The higher the hardness corresponding to the 3D model to be printed is, the larger the bottom area of the solid rectangular columns is, and the smaller the space between the solid rectangular columns is.
Optionally, the computer device may determine the bottom area of each solid rectangular column and the distance between each solid rectangular column according to the filling rate corresponding to the 3D model to be printed.
The filling rate corresponding to the 3D model to be printed is higher, the base area of the solid rectangular columns is larger, and the space between the solid rectangular columns is smaller.
Optionally, the computer device may determine the base area of each solid rectangular column and the distance between each solid rectangular column according to the hardness and the filling rate corresponding to the 3D model to be printed.
It should be noted that the bottom areas of the solid rectangular columns may be the same or different, and the distances between the solid rectangular columns may be equal or different. The bottom area of each solid rectangular column and the distance between each solid rectangular column are not particularly limited in the embodiments of the present application.
Step 302, the computer device determines the height of each solid rectangular column according to the height of the 3D model to be printed.
Specifically, in order to ensure the hardness of the 3D model to be printed and ensure that the 3D model to be printed does not collapse, the height of each position of the 3D model to be printed needs to be determined as the height of each solid rectangular column corresponding to each position.
Illustratively, the height corresponding to the upper right corner of the 3D model to be printed is 10cm, and the computer device determines the height of the solid rectangular column corresponding to the upper right corner of the 3D model to be printed as 10 cm; and the height corresponding to the upper left corner of the 3D model to be printed is 12cm, and the computer equipment determines the height of the solid rectangular column corresponding to the upper left corner of the 3D model to be printed to be 12 cm.
Step 303, the computer device determines a keel structure based on the base area of each solid rectangular column, the height of each solid rectangular column, and the spacing between each solid rectangular column.
Specifically, after determining the bottom area of each solid rectangular column, the height of each solid rectangular column and the distance between each solid rectangular column, the computer device constructs a keel structure needing to be filled inside the 3D model to be printed by using each solid rectangular column.
For example, the computer device may determine that the base area of each solid rectangular pillar is 5cm by 5cm, and determine that the height of each solid rectangular pillar corresponding to each position may be 10cm, 12cm, 13cm, and the interval between each solid rectangular pillar may be 3cm, 2cm, and 1cm, according to the height of each position of the 3D model to be printed. The computer can draw each solid rectangular column to the inside of waiting to print the 3D model through 3D drawing software to confirm to wait to print the inside keel structure of 3D model.
In the embodiment of the application, the computer device determines the bottom area and the distance between the solid rectangular columns according to the hardness or/and the filling rate corresponding to the 3D model to be printed, and determines the height of each solid rectangular column according to the height of the 3D model to be printed. The computer device then determines a keel structure based on the base area of each solid rectangular column, the height of each solid rectangular column, and the spacing between each solid rectangular column. In the method, the computer equipment determines the bottom area and the height of each solid rectangular column and the distance between each solid rectangular column according to the hardness or/and the filling rate corresponding to the 3D model to be printed, so that the keel structure in the 3D model to be printed is matched with the 3D model to be printed, the hardness of the 3D model to be printed is ensured under the condition of low filling rate, and the filling rate in the 3D model to be printed is low under the condition of low hardness of the 3D model to be printed. Thereby realized waiting to print under the condition of 3D model firmness degree, shortened the printing time, reduced the printing consumptive material, reduced and printed the cost.
In an embodiment of the present application, as shown in fig. 4, the "performing layered printing on the 3D model to be printed including the keel structure" in step 203 may include the following steps:
step 401, slicing the to-be-printed 3D model including the keel structure by the computer device to generate slice data.
The slice data comprise printing data corresponding to the external outline of the 3D model to be printed and printing data corresponding to the keel structure.
Specifically, the computer device may perform slicing processing on the 3D model to be printed including the keel structure by using slicing software, and cut the 3D model into a plurality of layers of slices. Wherein, the thickness of each section is for predetermineeing thickness, predetermines thickness and can set for according to the size of printer nozzle. Therefore, the number of slices and the thickness of the slices are not particularly limited in the embodiments of the present application.
After the 3D model to be printed containing the keel structure is cut into a plurality of layers of slices by the computer equipment, slice data corresponding to the slices can be generated according to a preset slicing algorithm. Because each slice includes the external contour of the 3D model to be printed and also includes the keel structure, the slice data includes the print data corresponding to the external contour of the 3D model to be printed and the print data corresponding to the keel structure.
Step 402, the computer device prints the to-be-printed 3D model containing the keel structure based on the slice data.
Specifically, after generating the slice data corresponding to each slice, the computer device may print the external contour of the 3D model to be printed based on the print data corresponding to the external contour of the 3D model to be printed included in the slice data, and print the keel structure filled in the 3D model to be printed based on the print data corresponding to the keel structure included in the slice data.
In the embodiment of the application, the computer equipment slices the to-be-printed 3D model containing the keel structure, generates slice data, and prints the to-be-printed 3D model containing the keel structure based on the slice data. Due to the fact that the slice data clearly represent the external outline of the 3D model to be printed and the keel structure filled inside the 3D model to be printed, when the computer device prints the 3D model to be printed containing the keel structure based on the slice data, printing time is saved, and the hardness of the 3D model to be printed is guaranteed.
In an embodiment of the present application, as shown in fig. 5, the "slicing the 3D model to be printed containing the keel structure to generate slice data" in step 401 may include the following steps:
step 501, cutting the to-be-printed 3D model including the keel structure into a plurality of slices with preset thickness by computer equipment, wherein each slice includes the outer contour and the keel structure of the to-be-printed 3D model.
Specifically, the computer device may cut the 3D model to be printed including the keel structure into several slices of a preset thickness using slicing software. Wherein, the preset thickness can be set according to the size of the printer nozzle. The preset thickness can be 2mm, still can be 3mm, and this application embodiment does not do specific restriction to preset thickness. After the 3D model to be printed including the keel structure is sliced into a plurality of slices with preset thicknesses, since the external contour and the keel structure of the 3D model to be printed included in each slice may be different, the computer device needs to determine the external contour and the keel structure of the 3D model to be printed included in each slice according to each sliced slice.
Step 502, the computer device generates slice data corresponding to each slice based on the external contour and keel structure included in each slice.
Specifically, the computer device generates print data corresponding to the outer contour of each slice according to the outer contour included in each slice based on a preset outer contour slice data generation algorithm. And then, generating printing data corresponding to the keel structures of the slices by the computer equipment according to the keel structures included in the slices based on a preset keel structure slice data generation algorithm.
And the computer equipment combines the printing data corresponding to the external outline in each slice and the slice data corresponding to the keel structure, so as to generate the printing data corresponding to each slice.
It should be noted that the preset external contour slice data generation algorithm and the preset keel structure slice data generation algorithm may be the same algorithm or different algorithms. In the embodiment of the application, a preset external contour slice data generation algorithm and a preset keel structure slice data generation algorithm are not specifically limited.
In the embodiment of the application, the computer device cuts the 3D model to be printed, which contains the keel structure, into a plurality of slices with preset thicknesses, and each slice includes the outer contour and the keel structure of the 3D model to be printed. The computer device generates slice data corresponding to each slice based on the outer contour and the keel structure included in each slice. Thereby can guarantee that the print data that the outside profile that waits to print the 3D model included in each section data corresponds and the print data that keel structure corresponds for according to the print data that the outside profile that waits to print the 3D model included in each section data corresponds and the print data that keel structure corresponds, the outside profile and the keel structure that wait to print the 3D model that print out are more accurate.
In an embodiment of the present application, as shown in fig. 6, the "printing the 3D model to be printed including the keel structure based on the slice data" in step 402 includes the following steps:
step 601, the computer device prints the external contour corresponding to each slice based on the print data corresponding to the external contour of the 3D model to be printed included in the slice data corresponding to each slice.
Specifically, the computer device may print the external contour corresponding to each slice in the preset direction according to print data corresponding to the external contour of the 3D model to be printed included in the slice data corresponding to each slice. The preset direction may be a clockwise direction or a counterclockwise direction, and the preset direction is not specifically limited in the embodiment of the present application.
Illustratively, the outer contour corresponding to the current layer in the 3D model slice to be printed is a circle with a diameter of 5cm, and the computer device may print a circle with a diameter of 5cm from any point in a preset direction according to print data corresponding to the outer contour of the 3D model to be printed included in slice data corresponding to the current layer.
Step 602, the computer device prints the internal filling structures corresponding to the slices based on the print data corresponding to the keel structures included in the slice data corresponding to the slices.
Specifically, after the external contour corresponding to each slice is printed, the computer device may print the internal filling structure corresponding to each slice in a preset direction based on the print data corresponding to the keel structure included in the slice data corresponding to each slice.
The preset direction can include left to right, right to left, top to bottom, bottom to top, top to bottom left, top to bottom right, bottom to top left, top to bottom right, top to bottom left, and top to left directions.
In this embodiment of the application, the computer device prints the external contour corresponding to each slice based on the print data corresponding to the external contour of the 3D model to be printed included in the slice data corresponding to each slice, and then prints the internal filling structure corresponding to each slice based on the print data corresponding to the keel structure included in the slice data corresponding to each slice. In the method, the outer contour of the 3D model to be printed is a closed image, and after the outer contour of the 3D model to be printed is printed, a limited range is provided for printing of the inner filling structure, so that the printing of the inner filling structure of the 3D model to be printed is more accurate. The inside filling structure of having avoided waiting to print the 3D model surpasss the outside profile scope to lead to extravagant consumptive material, and the influence is waited to print 3D model's pleasing to the eye.
In an embodiment of the present application, as shown in fig. 7, the step 602 of printing the internal filling structure corresponding to each slice based on the print data corresponding to the keel structure included in the slice data corresponding to each slice may include the following steps:
in step 701, the computer device generates a plurality of solid rectangular regions corresponding to the slices based on the print data corresponding to the keel structure included in the slice data corresponding to the slices.
Specifically, after determining the print data corresponding to the keel structure included in the slice data corresponding to each slice, the computer device may generate a plurality of solid rectangular regions corresponding to each slice according to the print data corresponding to the keel structure.
Illustratively, the print data characterization corresponding to the keel structure included in the slice data corresponding to the current layer includes 3 × 3 solid rectangular regions having a base area of 5cm × 5cm, and the interval between the solid rectangular regions is divided into 6 cm. And 3 multiplied by 3 solid rectangular areas with the base area of 5cm by 5cm are generated by the computer equipment according to the printing data corresponding to the keel structure, and the interval between every two solid rectangular areas is divided into 6 cm.
In step 702, the computer device connects the solid rectangular regions using a predetermined number of print bars to generate rectangular connection layers.
Specifically, to ensure stability between the solid rectangular regions, the computer device may connect the solid rectangular regions using a preset number of print bars, generating rectangular connection layers. The preset number can be obtained by calculation according to the hardness or/and the filling rate corresponding to the 3D model to be printed, the preset number can be 4, 5 or 6, and the preset number is not specifically limited in the application.
Wherein the length of the printing strip is equal to the spacing between the solid rectangular areas. The height of the print bar may be equal to or less than the thickness of each sliced layer. The width of the printing strip can be obtained by calculation according to the hardness or/and the filling rate corresponding to the 3D model to be printed, and can be 0.4mm, 0.3mm and 0.2mm, and the application does not specifically limit the width of the printing strip and the height of the printing strip.
Illustratively, the print data characterization corresponding to the keel structure included in the slice data corresponding to the current layer of the computer device includes 3 × 3 solid rectangular areas with a base area of 5cm × 5cm, and the interval between the solid rectangular areas is divided into 6 cm. As shown in fig. 8, the computer device may connect the solid rectangular regions using a preset number of print bars, generating rectangular connection layers.
And 703, printing the internal filling structures corresponding to the slices respectively by the computer equipment based on the rectangular connecting layers.
Specifically, the computer device may print the internal filling structures corresponding to the respective slices according to the generated respective rectangular connection layers.
Optionally, the computer device may print each solid rectangular region first according to a preset direction, and print a preset number of print bars between each solid rectangular region after printing each solid rectangular region, so as to complete printing of the internal filling structure corresponding to each slice.
The preset direction can include left to right, right to left, top to bottom, bottom to top, top to bottom left, top to bottom right, bottom to top left, top to bottom right, top to bottom left, and top to left directions.
Optionally, when the computer device prints each solid rectangular region according to the preset direction, it may print one solid rectangular region first according to the preset direction. When the first solid rectangular area is printed, the upper left corner coordinate and the lower right corner coordinate in the solid rectangular area are determined, and then the solid rectangular area is printed according to the upper left corner coordinate and the lower right corner coordinate in the solid rectangular area. Then, in this way, printing of the solid rectangular regions is sequentially completed.
After printing all the solid rectangular areas, printing the printing strips among all the solid rectangular areas in sequence according to a preset direction. Thereby completing the printing of the internal filling structure corresponding to each slice.
In this embodiment, the computer device generates a plurality of solid rectangular regions corresponding to the respective slices based on print data corresponding to the keel structures included in the slice data corresponding to the respective slices, and connects the solid rectangular regions by using a preset number of print bars to generate the respective rectangular connection layers. And the computer equipment prints the internal filling structures corresponding to the slices respectively on the basis of the rectangular connecting layers. In the method, the computer equipment can connect the solid rectangular areas by using the preset number of printing bars, so that the stability among the solid rectangular areas is ensured, and the hardness of each slice is ensured. The hardness of the 3D model to be printed can be guaranteed only when the hardness of each slice is guaranteed.
In an embodiment of the present application, as shown in fig. 9, the step 703 of printing the internal filling structure corresponding to each slice based on each rectangular connection layer may include the following steps:
in step 901, the computer device generates a profile layer corresponding to each external profile based on print data corresponding to the external profile included in the slice data corresponding to each slice.
In this embodiment, the computer device first inputs print data corresponding to the external contour included in the slice data corresponding to each slice into a preset contour layer generation algorithm, and generates a contour layer corresponding to each external contour.
Illustratively, the outer contour corresponding to the current layer in the 3D model slice to be printed is a circle with a diameter of 5cm, and the computer device may input print data corresponding to the outer contour of the 3D model to be printed included in the slice data corresponding to the current layer into a preset contour layer generation algorithm to generate a circle with a diameter of 5 cm.
And 902, performing intersection operation on each rectangular connecting layer and each contour layer by the computer equipment by using a preset graphic algorithm to generate the rectangular connecting layer corresponding to each contour layer.
Specifically, after generating the outline layer corresponding to each external contour based on the print data corresponding to the external contour included in the slice data corresponding to each slice, the computer device may superimpose each rectangular connection layer on each outline layer using a preset image algorithm, thereby ensuring that each outline layer intersects each rectangular connection layer, and removing the portions of each rectangular connection layer other than the outline layer, thereby generating the rectangular connection layer corresponding to each outline layer.
Illustratively, the computer device generates a contour layer having a circular shape with a diameter of 25cm based on print data corresponding to the outer contour included in the slice data corresponding to the current layer.
In the above steps, the computer device generates 3 × 3 solid rectangular regions having a base area of 5cm × 5cm based on the print data corresponding to the keel structure included in the slice data corresponding to the current layer, and the interval between the solid rectangular regions is 6cm, thereby generating a rectangular connection layer of 27cm × 27 cm. The computer device superimposes a circular outline layer having a diameter of 25cm and a rectangular connected layer having a diameter of 27cm by 27cm so as to define a circle having a diameter of 25cm in the rectangular connected layer having a diameter of 27cm by 27cm, and removes an excess portion of the periphery of the rectangular connected layer so as to generate a rectangular connected layer corresponding to the outline layer.
In step 903, the computer device prints the internal filling structures corresponding to the slices based on the rectangular connection layers corresponding to the contour layers.
Specifically, the computer device prints the internal filling structures corresponding to the slices respectively according to a preset direction based on the rectangular connecting layers corresponding to the outline layers.
Optionally, when the rectangular connection layer corresponding to each contour layer in each slice includes both the complete solid rectangular region and the incomplete solid rectangular region distributed around the complete solid rectangular region, the computer device may print the complete solid rectangular region in the preset direction. After printing the complete solid rectangular area, the computer device may print the incomplete solid rectangular area according to the position of the incomplete solid rectangular area and the outer contour corresponding to each slice. After the solid rectangular areas are printed, printing strips among the solid rectangular areas are sequentially printed according to a preset direction. Thereby completing the printing of the internal filling structure corresponding to each slice.
Optionally, when the computer device prints each complete solid rectangular region according to the preset direction, it may print one complete solid rectangular region according to the preset direction first. When the first complete solid rectangular area is printed, the upper left corner coordinate and the lower right corner coordinate in the complete solid rectangular area are determined, and then the solid rectangular area is printed according to the upper left corner coordinate and the lower right corner coordinate in the complete solid rectangular area. Then, in this way, printing of the solid rectangular regions is sequentially completed.
In the embodiment of the present application, the computer device generates a contour layer corresponding to each external contour based on print data corresponding to the external contour included in the slice data corresponding to each slice. And the computer equipment performs intersection operation on each rectangular connecting layer and each outline layer by using a preset graphic algorithm to generate the rectangular connecting layer corresponding to each outline layer. In the method, the computer device performs intersection operation on each rectangular connecting layer and each contour layer by using a preset image algorithm, so that the intersected part of each contour layer and each rectangular connecting layer is ensured, and the parts except for the contour layer in each rectangular connecting layer are removed, thereby generating the rectangular connecting layer corresponding to each contour layer. Make rectangle articulamentum and profile layer match, guarantee that rectangle articulamentum is within the profile layer to guarantee can not surpass the scope on profile layer when printing rectangle articulamentum, thereby make the printing of waiting to print the inside filling structure of 3D model more accurate. The inside filling structure of having avoided waiting to print the 3D model surpasss the outside profile scope to lead to extravagant consumptive material, and the influence is waited to print 3D model's pleasing to the eye.
To better explain the model printing method provided in the embodiment of the present application, as shown in fig. 10, it shows a schematic flow chart of the model printing method provided in the embodiment of the present application, where:
step 1001, a computer device receives hardness or/and filling rate corresponding to a3D model to be printed, which is input by a user.
Step 1002, the computer device determines the base area of each solid rectangular column and the distance between each solid rectangular column according to the hardness or/and the filling rate corresponding to the 3D model to be printed.
Step 1003, the computer device determines the height of each solid rectangular column according to the height of the 3D model to be printed.
At step 1004, the computer device determines a keel structure based on the base area of each solid rectangular column, the height of each solid rectangular column, and the spacing between each solid rectangular column.
Step 1005, cutting the to-be-printed 3D model containing the keel structure into a plurality of layers of slices with preset thickness by computer equipment, wherein each slice comprises the external contour and the keel structure of the to-be-printed 3D model.
Step 1006, the computer device generates slice data corresponding to each slice based on the external contour and the keel structure included in each slice.
Step 1007, the computer device prints the external contour corresponding to each slice based on the print data corresponding to the external contour of the 3D model to be printed included in the slice data corresponding to each slice.
Step 1008, the computer device generates a plurality of solid rectangular areas corresponding to the slices based on print data corresponding to the keel structures included in the slice data corresponding to the slices.
Step 1009, the computer device connects the solid rectangular regions using a preset number of print bars, generating rectangular connection layers.
In step 1010, the computer device generates a profile layer corresponding to each external profile based on print data corresponding to the external profile included in the slice data corresponding to each slice.
In step 1011, the computer device performs intersection operation on each rectangular connection layer and each outline layer by using a preset graphic algorithm to generate a rectangular connection layer corresponding to each outline layer.
At step 1012, the computer device prints an interior filling structure corresponding to each slice based on the rectangular connection layer corresponding to each contour layer.
It should be understood that although the various steps in the flowcharts of fig. 2-7 and 9-10 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-7 and 9-10 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or at least partially with other steps or with at least some of the other steps.
In an embodiment of the present application, as shown in fig. 11, there is provided a model printing apparatus 1100 including: a receiving module 1110, a determining module 1120, and a printing module 1130, wherein:
the receiving module 1110 is configured to receive a hardness or/and a filling rate corresponding to the 3D model to be printed, which is input by a user.
The determining module 1120 is configured to determine a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed; the keel structure is comprised of a plurality of interconnected solid rectangular columns.
And the printing module 1130 is configured to perform layered printing on the 3D model to be printed, which includes the keel structure.
In an embodiment of the present application, as shown in fig. 12, the determining module 1120 includes: a first determining unit 1121, a second determining unit 1122, and a third determining unit 1123, wherein:
the first determining unit 1121 is configured to determine a base area of each solid rectangular column and a distance between each solid rectangular column according to the hardness or/and the filling rate corresponding to the 3D model to be printed.
And a second determining unit 1122 for determining the height of each solid rectangular column according to the height of the 3D model to be printed.
A third determination unit 1123 for determining a keel structure based on the bottom area of each solid rectangular column, the height of each solid rectangular column and the spacing between each solid rectangular column.
In an embodiment of the present application, as shown in fig. 13, the printing module 1130 includes a slicing unit 1131 and a printing unit 1132, where:
the slicing unit 1131 is configured to slice the 3D model to be printed, which includes the keel structure, to generate slice data, where the slice data includes print data corresponding to an external contour of the 3D model to be printed and print data corresponding to the keel structure;
and a printing unit 1132, configured to print, based on the slice data, the 3D model to be printed that includes the keel structure.
In an embodiment of the present application, the slicing unit 1131 is specifically configured to cut the 3D model to be printed, which includes the keel structure, into a plurality of slices with preset thicknesses, where each slice includes an outer contour and the keel structure of the 3D model to be printed; based on the external contour and the keel structure included in each slice, slice data corresponding to each slice is generated.
In an embodiment of the present application, the printing unit 1132 is specifically configured to print the external contour corresponding to each slice based on print data corresponding to the external contour of the 3D model to be printed, where the print data is included in slice data corresponding to each slice; and printing the internal filling structures corresponding to the slices respectively based on the printing data corresponding to the keel structures included in the slice data corresponding to the slices respectively.
In an embodiment of the present application, the printing unit 1132 is specifically configured to generate a plurality of solid rectangular regions corresponding to each slice based on print data corresponding to a keel structure included in slice data corresponding to each slice; connecting the solid rectangular areas by using a preset number of printing strips to generate rectangular connecting layers; and printing the internal filling structures corresponding to the slices respectively based on the rectangular connecting layers.
In an embodiment of the present application, the printing unit 1132 is specifically configured to generate a contour layer corresponding to each external contour based on print data corresponding to the external contour included in slice data corresponding to each slice; performing intersection operation on each rectangular connecting layer and each outline layer by using a preset graphic algorithm to generate a rectangular connecting layer corresponding to each outline layer; and printing the internal filling structures corresponding to the slices respectively based on the rectangular connecting layers corresponding to the outline layers.
For specific definition of the model printing apparatus, reference may be made to the above definition of the model printing method, which is not described herein again. The respective modules in the above-described model printing apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment of the present application, there is provided a computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the following steps when executing the computer program: receiving hardness or/and filling rate corresponding to the 3D model to be printed and input by a user; determining a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed; the keel structure is formed by a plurality of solid rectangular columns which are connected with each other; and (4) carrying out layered printing on the 3D model to be printed containing the keel structure.
In one embodiment of the application, the processor when executing the computer program further performs the following steps: determining the bottom area of each solid rectangular column and the space between each solid rectangular column according to the hardness or/and the filling rate corresponding to the 3D model to be printed; determining the height of each solid rectangular column according to the height of the 3D model to be printed; the keel structure is determined based on the bottom area of each solid rectangular column, the height of each solid rectangular column and the spacing between each solid rectangular column.
In one embodiment of the application, the processor when executing the computer program further performs the following steps: slicing the 3D model to be printed containing the keel structure to generate slice data, wherein the slice data comprises printing data corresponding to the external outline of the 3D model to be printed and printing data corresponding to the keel structure; and printing the 3D model to be printed containing the keel structure based on the slice data.
In one embodiment of the application, the processor when executing the computer program further performs the following steps: cutting a to-be-printed 3D model containing a keel structure into a plurality of layers of slices with preset thicknesses, wherein each slice comprises an external outline and the keel structure of the to-be-printed 3D model; based on the external contour and the keel structure included in each slice, slice data corresponding to each slice is generated.
In one embodiment of the application, the processor when executing the computer program further performs the following steps: printing the external contour corresponding to each slice based on the printing data corresponding to the external contour of the 3D model to be printed, which is included in the slice data corresponding to each slice; and printing the internal filling structures corresponding to the slices respectively based on the printing data corresponding to the keel structures included in the slice data corresponding to the slices respectively.
In one embodiment of the application, the processor when executing the computer program further performs the following steps: generating a plurality of solid rectangular areas corresponding to the slices respectively based on the printing data corresponding to the keel structures included in the slice data corresponding to the slices respectively; connecting the solid rectangular areas by using a preset number of printing strips to generate rectangular connecting layers; and printing the internal filling structures corresponding to the slices respectively based on the rectangular connecting layers.
In one embodiment of the application, the processor when executing the computer program further performs the following steps: generating a profile layer corresponding to each external profile based on print data corresponding to the external profile included in the slice data corresponding to each slice; performing intersection operation on each rectangular connecting layer and each outline layer by using a preset graphic algorithm to generate a rectangular connecting layer corresponding to each outline layer; and printing the internal filling structures corresponding to the slices respectively based on the rectangular connecting layers corresponding to the outline layers.
In one embodiment of the present application, there is provided a computer readable storage medium having a computer program stored thereon, the computer program when executed by a processor implementing the steps of: receiving hardness or/and filling rate corresponding to the 3D model to be printed and input by a user; determining a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed; the keel structure is formed by a plurality of solid rectangular columns which are connected with each other; and (4) carrying out layered printing on the 3D model to be printed containing the keel structure.
In one embodiment of the application, the computer program when executed by the processor further performs the steps of: determining the bottom area of each solid rectangular column and the space between each solid rectangular column according to the hardness or/and the filling rate corresponding to the 3D model to be printed; determining the height of each solid rectangular column according to the height of the 3D model to be printed; the keel structure is determined based on the bottom area of each solid rectangular column, the height of each solid rectangular column and the spacing between each solid rectangular column.
In one embodiment of the application, the computer program when executed by the processor further performs the steps of: slicing the 3D model to be printed containing the keel structure to generate slice data, wherein the slice data comprises printing data corresponding to the external outline of the 3D model to be printed and printing data corresponding to the keel structure; and printing the 3D model to be printed containing the keel structure based on the slice data.
In one embodiment of the application, the computer program when executed by the processor further performs the steps of: cutting a to-be-printed 3D model containing a keel structure into a plurality of layers of slices with preset thicknesses, wherein each slice comprises an external outline and the keel structure of the to-be-printed 3D model; based on the external contour and the keel structure included in each slice, slice data corresponding to each slice is generated.
In one embodiment of the application, the computer program when executed by the processor further performs the steps of: printing the external contour corresponding to each slice based on the printing data corresponding to the external contour of the 3D model to be printed, which is included in the slice data corresponding to each slice; and printing the internal filling structures corresponding to the slices respectively based on the printing data corresponding to the keel structures included in the slice data corresponding to the slices respectively.
In one embodiment of the application, the computer program when executed by the processor further performs the steps of: generating a plurality of solid rectangular areas corresponding to the slices respectively based on the printing data corresponding to the keel structures included in the slice data corresponding to the slices respectively; connecting the solid rectangular areas by using a preset number of printing strips to generate rectangular connecting layers; and printing the internal filling structures corresponding to the slices respectively based on the rectangular connecting layers.
In one embodiment of the application, the computer program when executed by the processor further performs the steps of: generating a profile layer corresponding to each external profile based on print data corresponding to the external profile included in the slice data corresponding to each slice; performing intersection operation on each rectangular connecting layer and each outline layer by using a preset graphic algorithm to generate a rectangular connecting layer corresponding to each outline layer; and printing the internal filling structures corresponding to the slices respectively based on the rectangular connecting layers corresponding to the outline layers.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A method of model printing, the method comprising:
receiving hardness or/and filling rate corresponding to the 3D model to be printed and input by a user;
determining a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed; the keel structure is formed by a plurality of solid rectangular columns which are connected with each other;
and carrying out layered printing on the 3D model to be printed containing the keel structure.
2. The method according to claim 1, wherein the determining the keel structure filled in the 3D model to be printed according to the corresponding hardness or/and filling rate of the 3D model to be printed comprises:
determining the base area of each solid rectangular column and the distance between each solid rectangular column according to the hardness or/and the filling rate corresponding to the 3D model to be printed;
determining the height of each solid rectangular column according to the height of the 3D model to be printed;
the keel structure is determined based on a base area of each of the solid rectangular columns, a height of each of the solid rectangular columns, and a spacing between each of the solid rectangular columns.
3. The method of claim 1, wherein the printing the 3D model to be printed containing the keel structure in layers comprises:
slicing the 3D model to be printed containing the keel structure to generate slice data, wherein the slice data comprises printing data corresponding to the external contour of the 3D model to be printed and printing data corresponding to the keel structure;
and printing the 3D model to be printed containing the keel structure based on the slice data.
4. The method of claim 3, wherein the slicing the 3D model to be printed containing the keel structure to generate slice data comprises:
cutting the to-be-printed 3D model containing the keel structure into a plurality of layers of slices with preset thicknesses, wherein each slice comprises the outer contour and the keel structure of the to-be-printed 3D model;
and generating slice data corresponding to each slice based on the external contour and the keel structure included in each slice.
5. The method of claim 3, wherein printing the 3D model to be printed containing the keel structure based on the slice data comprises:
printing the external contour corresponding to each slice based on the printing data corresponding to the external contour of the 3D model to be printed, which is included in the slice data corresponding to each slice;
and printing the internal filling structure corresponding to each slice based on the printing data corresponding to the keel structure included in the slice data corresponding to each slice.
6. The method of claim 5, wherein printing the internal filling structure corresponding to each of the slices based on the print data corresponding to the keel structure included in the slice data corresponding to each of the slices comprises:
generating a plurality of solid rectangular areas corresponding to the slices respectively based on the printing data corresponding to the keel structure included in the slice data corresponding to the slices respectively;
connecting the solid rectangular areas by using a preset number of printing strips to generate rectangular connecting layers;
and printing the internal filling structures corresponding to the slices respectively based on the rectangular connecting layers.
7. The method of claim 6, wherein printing the respective internal filling structures of the slices on the basis of the respective rectangular connection layers comprises:
generating a profile layer corresponding to each external profile based on print data corresponding to the external profile included in slice data corresponding to each slice;
performing intersection operation on each rectangular connecting layer and each outline layer by using a preset graphic algorithm to generate a rectangular connecting layer corresponding to each outline layer;
and printing the internal filling structures respectively corresponding to the slices on the basis of the rectangular connecting layers corresponding to the outline layers.
8. A model printing apparatus, characterized in that the apparatus comprises:
the receiving module is used for receiving the hardness or/and the filling rate corresponding to the 3D model to be printed, which is input by a user;
the determining module is used for determining a keel structure filled in the 3D model to be printed according to the hardness or/and the filling rate corresponding to the 3D model to be printed; the keel structure is formed by a plurality of solid rectangular columns which are connected with each other;
and the printing module is used for carrying out layered printing on the 3D model to be printed containing the keel structure.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
CN202110572940.8A 2021-05-25 2021-05-25 Model printing method, model printing device, computer equipment and storage medium Pending CN113370521A (en)

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