CN114905748B

CN114905748B - Data processing method, 3D printing method, system, equipment and storage medium

Info

Publication number: CN114905748B
Application number: CN202210512482.3A
Authority: CN
Inventors: 荣左超; 陈六三; 陈禺; 于清晓; 戴梦炜
Original assignee: Shanghai Union Technology Corp
Current assignee: Shanghai Union Technology Corp
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2024-01-16
Anticipated expiration: 2042-05-12
Also published as: CN114905748A

Abstract

The application discloses a data processing method, a 3D printing method, a system, equipment and a storage medium. The data processing method disclosed by the application is applied to a printing system comprising a server system and a plurality of printing terminals, and comprises the following steps: acquiring correction data of a plurality of printing terminals corresponding to the three-dimensional model; correspondingly adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal to generate data to be printed corresponding to each printing terminal; and distributing the corresponding data to be printed to each printing terminal so that the three-dimensional objects printed by each printing terminal based on the data to be printed reach the same expectation.

Description

Data processing method, 3D printing method, system, equipment and storage medium

Technical Field

The present disclosure relates to the field of 3D printing technologies, and in particular, to a data processing method, a 3D printing method, a system, a device, and a storage medium.

Background

3D printing is a rapid prototyping technology, which is a technology for constructing objects by using powdery metal, plastic, resin and other bondable materials in a layer-by-layer printing mode. The 3D printing apparatus manufactures a 3D object by performing such a printing technique.

Under the occasion that needs a plurality of 3D printing device simultaneous working, because the difference of each 3D printing device self hardware and the error that the assembly debugging produced can make the 3D object that each printing device printed have certain difference, the existence of this difference to high accuracy application (such as mould, custom commodity, medical treatment tool etc. field) often can lead to the 3D object that prints to be unable to use or feel relatively poor.

Disclosure of Invention

In view of the above-described drawbacks of the related art, an object of the present application is to provide a data processing method, a 3D printing method, a system, an apparatus, and a storage medium.

To achieve the above and other related objects, a first aspect of the present application discloses a data processing method applied to a printing system including a server system and a plurality of printing terminals, the data processing method including: acquiring correction data of a plurality of printing terminals corresponding to the three-dimensional model; correspondingly adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal to generate data to be printed corresponding to each printing terminal; and distributing the corresponding data to be printed to each printing terminal so that the three-dimensional objects printed by each printing terminal based on the data to be printed reach the same expectation.

In certain embodiments of the first aspect of the present application, the correction data refers to correction parameters of the corresponding cured material set to enable the color, shape, and/or size of the three-dimensional object printed by each printing terminal to meet the same expected accuracy.

In certain embodiments of the first aspect of the present application, the correction data comprises image correction data and/or process correction data.

In certain embodiments of the first aspect of the present application, the two-dimensional data comprises slice image data and/or process data.

In certain embodiments of the first aspect of the present application, the step of adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal includes: adjusting at least one of a gray value, a shape, and a size of a slice image in the two-dimensional data based on image correction data in the correction data; and/or adjusting the process data in the two-dimensional data based on the process correction data in the correction data.

In certain embodiments of the first aspect of the present application, adjusting the size information of the slice image comprises: a gap between two image contours having a fitting relationship and/or a gap between adjacent but non-fitting image contours.

In certain embodiments of the first aspect of the present application, the degree of adjustment of the gap between the two image contours having the assembled relationship is related to the size of the image contours.

In certain embodiments of the first aspect of the present application, the adjusting the process data in the two-dimensional data includes adjusting an exposure time period or adjusting an exposure power.

In certain embodiments of the first aspect of the present application, the same expectation means that the printing accuracy satisfies 10 μm to 20 μm.

In certain embodiments of the first aspect of the present application, the correction data includes function requirement data, and the step of adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal includes: and generating corresponding function support data based on the function requirement data.

In certain embodiments of the first aspect of the present application, further comprising: and determining the corresponding relation between the three-dimensional model and the plurality of printing terminals.

In certain embodiments of the first aspect of the present application, the three-dimensional model corresponds to a model of a tooth object, and the printed three-dimensional object is a tooth object.

A second aspect of the present application discloses a data processing system, the data processing system comprising: the acquisition module is used for acquiring correction data of a plurality of printing terminals corresponding to the three-dimensional model; the processing module is used for correspondingly adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal so as to generate a plurality of data to be printed which respectively correspond to each printing terminal; and the sending module distributes the corresponding data to be printed to each printing terminal so that the three-dimensional model printed by each printing terminal based on the data to be printed achieves the same expectation.

A third aspect of the present application discloses a server system, the server system comprising: a storage device for storing at least one program; and processing means, coupled to said storage means, for reading said at least one program to perform a data processing method as claimed in any of the embodiments disclosed in the first aspect of the claims.

A fourth aspect of the present application discloses a 3D printing method, where the 3D printing method is applied to each printing terminal connected to a server system, and the 3D printing method includes: transmitting respective correction data to the server system, wherein the correction data refers to correction parameters of corresponding curing materials, which are set for enabling colors, shapes and/or sizes of three-dimensional objects printed by the printing terminals to meet the same expected precision; receiving data to be printed distributed by the server system, and printing a three-dimensional object corresponding to the three-dimensional model based on the data to be printed; the three-dimensional objects printed by the printing terminals can achieve the same expectation.

In certain embodiments of the fourth aspect of the present application, the correction data comprises image correction data and/or process correction data.

In certain embodiments of the fourth aspect of the present application, the print terminal pre-stores a correction data list, where the correction data list includes correction data corresponding to each cured material.

In certain embodiments of the fourth aspect of the present application, further comprising: and displaying a selection interface of the correction data on the printing terminal based on the user selection.

A fifth aspect of the present application discloses a 3D printing apparatus comprising: a container for Cheng Fangguang cured material; an energy radiation system for irradiating the photo-curable material in the container to obtain a pattern cured layer; a member stage for attaching the pattern cured layer cured by irradiation; the Z-axis driving mechanism is connected with the component platform and is used for controllably moving and adjusting the interval between the component platform and the printing reference surface along the vertical axial direction and filling the photo-curing material to be cured; and the printing terminal is connected with the energy radiation system and the Z-axis driving mechanism and is used for executing the printing method according to any embodiment disclosed in the fourth aspect of the application.

In certain embodiments of the fifth aspect of the present application, the 3D printing device comprises one of an SLA-based 3D printing device, a DLP-based 3D printing device, an LCD-based 3D printing device, an SLM-based 3D printing device, an LSL-based 3D printing device, or an FDM-based 3D printing device.

A fifth aspect of the present application discloses a computer storage medium storing at least one program which, when executed by a processor, performs a data processing method according to any of the embodiments disclosed in the first aspect of the present application; alternatively, the program, when executed by a processor, performs a 3D printing method according to any one of the embodiments disclosed in the fourth aspect of the present application.

A sixth aspect of the present application discloses a printing system, comprising: a plurality of printing terminals, each printing terminal for executing the 3D printing method according to any one of the embodiments disclosed in the fourth aspect of the present application; and the server system is connected with each printing terminal and is used for executing the data processing method according to any embodiment disclosed in the first aspect of the application.

In summary, a data processing method, a 3D printing method, a system, a device and a storage medium are disclosed. The server system correspondingly adjusts the two-dimensional data of the three-dimensional model according to the correction data of each printing terminal, so that a plurality of data to be printed corresponding to each printing terminal are generated and distributed to each printing terminal. By means of the method, two-dimensional data can be modified on the printing system according to the characteristic adaptability of each printing terminal, so that the printing effect of each printing device provided with the printing terminal can reach the same expectation, and complicated adjustment work is automatically completed on the server system, and complex adjustment work is not needed to be carried out on the printing terminal by a user.

Drawings

The specific features of the invention related to this application are set forth in the appended claims. The features and advantages of the invention that are related to the present application will be better understood by reference to the exemplary embodiments and the drawings that are described in detail below. The brief description of the drawings is as follows:

Fig. 1 is a schematic structural view of a 3D printing apparatus according to an embodiment of the present application.

Fig. 2 is a flow chart of a data processing method and a 3D printing method according to an embodiment of the present application.

Fig. 3 shows a graphical illustration of image bias parameters in an embodiment of the present application.

Fig. 4 shows a graphical illustration of image contour compensation parameters in an embodiment of the present application.

Fig. 5 is a schematic diagram showing a correction data selection interface displayed on the printing terminal in an embodiment of the present application.

Fig. 6 is a schematic diagram showing the server system adjusting the size information of the slice image in an embodiment of the present application.

Fig. 7 is a schematic diagram showing the server system adjusting the size information of the slice image in an embodiment of the present application.

Fig. 8 is a schematic diagram showing the server system adjusting the size information of the slice image in an embodiment of the present application.

FIG. 9 is a schematic diagram of a data processing system according to an embodiment of the present application.

Detailed Description

Further advantages and effects of the present application will be readily apparent to those skilled in the art from the present disclosure, by describing the embodiments of the present application with specific examples.

In the following description, reference is made to the accompanying drawings, which describe several embodiments of the present application. It is to be understood that other embodiments may be utilized and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description is not to be taken in a limiting sense, and the scope of embodiments of the present application is defined only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Spatially relative terms, such as "upper," "lower," "left," "right," "lower," "upper," and the like, may be used herein to facilitate a description of one element or feature as illustrated in the figures as being related to another element or feature.

Although the terms first, second, etc. may be used herein to describe various elements or parameters in some examples, these elements or parameters should not be limited by these terms. These terms are only used to distinguish one element or parameter from another element or parameter. For example, the first slice image may be referred to as a second slice image, and similarly, the second slice image may be referred to as the first slice image, without departing from the scope of the various described embodiments. The first slice image and the second slice image are both described as one slice image, but they are not the same slice image unless the context clearly indicates otherwise. Similar situations also include the first three-dimensional model and the second three-dimensional model, or the first printing terminal and the second printing terminal.

Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or" and/or "as used herein are to be construed as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; A. b and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

In a scenario where multiple 3D printing apparatuses (also referred to as printers, printing devices, etc.) are required to print three-dimensional objects, as described in the background, for high-precision applications, small differences in printing by the printing apparatuses may make the printed three-dimensional objects unusable or have a poor sense of use.

Taking the dental field in the medical jig as an example, the dental object manufactured by using the 3D printing apparatus, such as a dental guide plate, a movable denture, a bridge, a crown, a space holder, a tooth replacement device, an orthodontic accessory, an orthodontic holder, a base, a post, a crown, an inlay, a crown cover, a veneer, an implant, a base, a bite plate, a partial crown, a denture, a circle, a nail, a connector, or an orthodontic bracket, etc., has a high requirement on the fit degree or the combination degree with a patient because the dental object needs to be placed in the mouth of the patient or the dental object needs to be matched with each other, and even if the printed dental object has a very small deviation, the patient has a poor sense of use, even cannot use the dental object. The above description of the dental field is only an example, and popularization from the dental field to other fields requiring high precision would have a lower tolerance for minor deviations.

In applications with only one printing device, some embodiments compensate for errors that may occur in the printing device by modifying the original three-dimensional model in the design software, and some embodiments ensure that the printed three-dimensional object has the same dimensions by adjusting the printing parameters of the printing device. But none of these approaches are adaptable in the context of the production of multiple printing devices. For example, in the example of modifying the original three-dimensional model on the design software, there is a high professional demand for the user, and the user is required to adaptively modify the original three-dimensional model according to the own characteristics of each printing device, and the required workload is large and cumbersome; in the example of adjusting the printing parameters of the printing apparatuses, the user is also required to adjust each printing apparatus according to the hardware conditions specific to each printing apparatus, the properties of the adopted cured material, and the like, and particularly when the accuracy of adjustment is required to be high, the degree of operation difficulty is also high; none of these examples are applicable in the application scenario of multiple printing devices.

In view of this, the present application discloses a data processing method and a 3D printing method applied to a printing system including a server system and a plurality of printing terminals. The data processing method is mainly performed by a server system configuring the data processing system, and the 3D printing method is mainly performed by a printing apparatus configured with a printing terminal. The server system correspondingly adjusts the two-dimensional data of the three-dimensional model according to the correction data of each printing terminal, so that a plurality of data to be printed corresponding to each printing terminal are generated and distributed to each printing terminal. By means of the method, two-dimensional data can be modified on the printing system according to the characteristic adaptability of each printing terminal, so that the printing effect of each printing device provided with the printing terminal can reach the same expectation, and complicated adjustment work is automatically completed on the server system, and complex adjustment work is not needed to be carried out on the printing terminal by a user.

The data processing system is a software tool capable of providing a man-machine interaction interface or processing data, and processes the data by means of a hardware device in the server system and an operation environment provided by an operating system.

Here, the server system is an electronic device capable of performing digital computation, logic processing, and information processing on data, which includes, but is not limited to: central computers, servers, server clusters, cloud-architecture-based server systems, and the like. In an example where the server system is a cloud server system, the cloud server system is disposed on one or more entity servers according to a plurality of factors such as functions, loads, and the like, for example, a server based on a cloud architecture includes a public cloud server and a private cloud server, where the public or private cloud server includes SaaS, paaS, iaaS, and the like. The private cloud service end is, for example, a beauty cloud computing service platform, an Arian cloud computing service platform, an Amazon cloud computing service platform, a hundred degree cloud computing platform, a Tencent cloud computing platform and the like. In an example in which the server system is formed by a distributed or centralized server cluster, the server cluster is formed by at least one entity server, for example, a plurality of virtual servers are configured in each entity server, each virtual server runs at least one functional module in the data processing apparatus, and the virtual servers communicate with each other through a network.

In an embodiment, the server system comprises at least one storage device and a processing device, optionally an interface device and/or a network communication device in data connection with the processing device, and a display device, an input device, etc. in data connection with the interface device or the network communication device.

The at least one storage device is used for storing at least one program; in embodiments, the storage means comprises a storage server or memory, which may comprise high-speed random access memory, and may also comprise non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid state storage devices. In some embodiments, the memory may also include memory remote from the one or more processors, such as network-attached memory accessed via RF circuitry or external ports and a communication network (not shown), which may be the internet, one or more intranets, a local area network, a wide area network, a storage local area network, etc., or a suitable combination thereof. The memory controller may control access to memory by other components of the device, such as the CPU and peripheral interfaces.

The at least one processing device is coupled to the storage device for executing the at least one program to perform and implement at least one embodiment described above with respect to the data processing method. The processing means is, for example, a server, such as an application server or the like, comprising a processor operatively coupled with memory and/or non-volatile storage. More specifically, the processor may execute instructions stored in the memory and/or the non-volatile storage device to perform operations in the computing device, such as generating image data and/or transmitting the image data to an electronic display. As such, the processor may include one or more general purpose microprocessors, one or more special purpose processors, one or more field programmable logic arrays, or any combination thereof.

The interface device comprises at least one interface unit, and each interface unit is respectively used for outputting a visual interface, receiving man-machine interaction events generated according to the operation of technicians and the like. For example, the interface means include, but are not limited to: a serial interface such as an HDMI interface or a USB interface, or a parallel interface, etc.

The network communication device is a device for data transmission using a wired or wireless network, examples of which include, but are not limited to: an integrated circuit including a network card, a local area network module such as a WiFi module or a bluetooth module, a wide area network module such as a mobile network, and the like.

The display device is used for displaying a visual interface, namely an operation interface, presented when the surface data processing system is operated. The display device includes, for example, a display that, if integrated with a touch sensor, can be used as a hardware device to display and generate input events. The display device may be in data connection with the processing device through an interface unit (e.g., HDMI interface) in the interface device, or a network communication device (e.g., wiFi module), etc.

The input device is used for being operated by a user, and the signal generated based on the user operation can trigger the calling of some programs to execute corresponding steps after being processed by the processing device. Examples of the input device include a mouse, a keyboard, an input pad, etc.

The printing terminal is configured in the 3D printing device, wherein the 3D printing device is used for manufacturing a three-dimensional object by using a photo-curing material, and can be a DLP device, an SLA device, an LCD device or the like; it is also possible to base for example on fused deposition FDM equipment, or SLS equipment or SLM equipment for powder beds, etc. In the embodiment shown in fig. 1 below, a 3D printing apparatus based on a light-curing DLP technology is temporarily described as an example.

In a 3D printing apparatus based on a photo-curing DLP technology, the energy radiation system includes, for example, a DMD chip, a controller, and a memory module. Wherein, the storage module stores therein a layered image that layers the 3D component model. And the DMD chip irradiates the light sources corresponding to the pixels on the layered image to the top surface of the container after receiving the control signal of the controller. The DMD chip is only a small mirror viewed from outside, and is encapsulated in a closed space formed by metal and glass, and in fact, the mirror is formed by hundreds of thousands or millions of micromirrors, each representing a pixel, and the projected image is formed by the pixels. The DMD chip may be described simply as a semiconductor light switch and micromirror corresponding to a pixel, and the controller allows/inhibits each microchip from reflecting light by controlling each light switch in the DMD chip, thereby illuminating a corresponding layered image onto the photo-curable material through the transparent top of the container, such that the photo-curable material corresponding to the shape of the image is cured to obtain a patterned cured layer.

Referring to fig. 1, a schematic structural diagram of a 3D printing apparatus according to an embodiment of the present application is shown, where the printing apparatus includes a container 51, a component platform 52, a Z-axis driving mechanism 53, an energy radiation system 54, and a printing terminal 55.

The container 51 is used for Cheng Fangguang curing material. The capacity of the container depends on the type of the 3D printing apparatus, and in general, since the printing format (or radiation format) of the 3D printing apparatus based on the SLA technology is larger than that of the 3D printing apparatus based on the DLP technology, the container capacity in the printing apparatus based on the SLA is larger than that in the printing apparatus based on the DLP.

In certain embodiments, the photocurable material comprises any liquid or powder material susceptible to photocuring, examples of which include: photo-curing resin liquid, or resin liquid doped with a mixture of additives, pigments, dyes, and the like. Powder materials include, but are not limited to: ceramic powder, color additive powder, and the like. The materials of the container include but are not limited to: glass, plastic, resin, etc. Wherein the capacity of the container depends on the type of 3D printing device. In some implementations, the container is often referred to as a resin tank.

The member stage 52 is used to attach a pattern cured layer that is cured by irradiation so as to build up into a three-dimensional object via the pattern cured layer. In particular, the component platform is exemplified by a component plate. The component platform generally takes a preset printing reference surface in the container as a starting position, and each solidified layer solidified on the printing reference surface is accumulated layer by layer to obtain a corresponding 3D printing object.

The Z-axis driving mechanism 53 is connected with the component platform 52 and is used for controllably moving and adjusting the distance between the component platform 52 and the printing reference plane along the vertical axis and filling the photo-curing material to be cured. Wherein the printing reference surface refers to a starting surface of the photo-curing material irradiated. In order to precisely control the irradiation energy of each cured layer, the Z-axis driving mechanism needs to drive the component platform to move to a position where the distance between the component platform and the printing reference surface is minimum, so that the thickness of the cured layer to be cured is the thickness of the layer. In an embodiment in which the 3D printing apparatus is an SLA apparatus with top laser scanning, the preset printing reference plane is generally located at a liquid level containing a resin liquid; in an embodiment where the 3D printing device is a bottom-exposure DLP device, the preset print reference plane is typically located at the bottom surface of the container, or at a certain height from a preset position of the bottom surface, for example, a DLP device using CLIP technology.

The energy radiation system 54 is used to irradiate the photo-curable material in the container to obtain a patterned cured layer. Specifically, the energy radiation system irradiates the photo-setting material in the container according to two-dimensional data among the data to be printed acquired based on the printing terminal 55 to obtain a three-dimensional object. In some implementations, the energy radiation system is also commonly referred to as an optical system or an opto-mechanical system, or the like.

The printing terminal 55 is connected to the energy radiation system 54 and the Z-axis driving mechanism 53, and is used for performing a 3D printing method to attach and deposit the pattern cured layer on the component platform 52 to obtain a corresponding three-dimensional object. The print terminal 55 is an electronic device including a processor, for example, the print terminal 55 is a computer device, an embedded device, or an integrated circuit integrated with a CPU, etc.

Referring to fig. 2, a flowchart of a data processing method and a 3D printing method in an embodiment of the present application is shown, where the data processing method may be performed by the server system in any of the foregoing embodiments, the data processing method includes step S110, step S120, and step S130, the 3D printing method may be performed by the printing terminal in any of the foregoing embodiments, and the 3D printing method includes step S210 and step S220. Specifically, the server system acquires correction data of a plurality of printing terminals corresponding to the three-dimensional model, and then correspondingly adjusts two-dimensional data of the three-dimensional model based on the correction data of each printing terminal to generate data to be printed corresponding to each printing terminal, and then distributes the data to be printed corresponding to each printing terminal, and the printing equipment corresponding to each printing terminal prints the three-dimensional object based on the data to be printed, so that the three-dimensional objects printed by the printing equipment can reach the same expectation.

In step S210, each print terminal corresponding to the three-dimensional model transmits the correction data to the server system.

The three-dimensional model is the position and the shape of a three-dimensional object to be printed, which are described by three-dimensional coordinate data, in space. The three-dimensional coordinate data includes, for example, a start position of the three-dimensional model, and offset positions determined from describing a relative positional relationship between the positions in the three-dimensional model space and the start position, or positioning positions determined from the offset positions and the start position. The start position, the offset position, and the positioning position may be exemplified by three-dimensional coordinate values described by a space coordinate system such as a rectangular three-dimensional coordinate system (or an angular coordinate system), or the like.

In order to optimize the file data volume of the three-dimensional model, the three-dimensional model is formed by splicing a plurality of basic units, wherein each three-dimensional coordinate data corresponds to a three-dimensional coordinate value of each basic unit in a corresponding three-dimensional coordinate system. Wherein the basic unit comprises a cubic unit for filling a three-dimensional model space and a surface patch unit for enclosing a three-dimensional model surface. Wherein each of the cube units may be cubes of equal or unequal size (and/or shape). The patch units may be two-dimensional planar structures of equal or unequal size (and/or shape). The shape is exemplified by a basic geometric shape, such as a triangle, a quadrangle and the like, and each basic unit forms the three-dimensional model in a coplanar or co-edge splicing mode.

It should be noted that, in some embodiments, the three-dimensional object corresponding to the three-dimensional model is suitable for high-precision situations, for example, the three-dimensional model is a model of a tooth object, the printing device corresponding to the printing terminal prints the three-dimensional object, and specific examples of the tooth object are described in the previous embodiments and are not repeated herein.

With continued reference to step S210 shown in fig. 2, each print terminal corresponding to the three-dimensional model transmits the respective correction data to the server system. Wherein, each printing terminal corresponding to the three-dimensional model means that the printing equipment corresponding to each printing terminal is used for printing the three-dimensional model respectively. In view of this, in some embodiments, the data processing method further includes step S100 (not illustrated), and in step S100, in an embodiment, the server system determines correspondence between the three-dimensional model and the plurality of printing terminals. The corresponding relation between the three-dimensional model and the plurality of printing terminals is that the printing equipment corresponding to each of the plurality of printing terminals is used for printing the corresponding three-dimensional object corresponding to the three-dimensional model. The three-dimensional model is obtained by a server system, and can be derived from a local storage device of equipment, or derived from a cloud server of the Internet, or formed by user design, or uploaded by a user.

In an embodiment, the server system determines correspondence between the three-dimensional model and the plurality of printing terminals based on user operations. In other words, in the present embodiment, the server system determines, in accordance with the user operation, the printing terminal to which the three-dimensional model corresponds, the printing apparatus to which the printing terminal corresponds to which the three-dimensional model is to be printed. The user operation refers to an operation performed by a user on an operation interface of a display device through an input device, including but not limited to clicking (e.g., clicking with an input device such as a mouse), dragging, releasing, etc., and the user operation mentioned later is understood by this unless otherwise specified, and will not be described again. The input device and the display device used by the user operation can be part of a server system, or can be input device and display device connected by other electronic devices, and the user operation is transmitted to the server system by the other electronic devices.

In other embodiments, the server system may also determine correspondence between the three-dimensional model and the plurality of print terminals based on pre-stored information. For example, the method for determining the plurality of printing terminals of the three-dimensional model by the server system is not limited, and the corresponding printing terminals are automatically determined for the three-dimensional model based on the order of acquiring the three-dimensional model, and then, for example, the printing terminals corresponding to the three-dimensional model are determined based on the correspondence stored in the server system.

For diversified printing needs, in some embodiments, the three-dimensional model may be one or more. In an example where the three-dimensional model is one, the server system determines that the three-dimensional model has a correspondence relationship with the plurality of printing terminals, that is, each printing device corresponding to the plurality of printing terminals is to be used for printing the same three-dimensional object; in examples where there are multiple three-dimensional models, the server system determines a correspondence between each three-dimensional model and at least one print terminal (e.g., one print terminal for each three-dimensional model, or multiple print terminals for each three-dimensional model), that is, each print device corresponding to multiple print terminals in the print system may be assigned to print a different three-dimensional object, or portions thereof may print a different three-dimensional object.

The correction data refers to correction parameters of corresponding curing materials set to enable at least one of colors, shapes and sizes of three-dimensional objects printed by printing devices corresponding to the printing terminals to meet the same expected precision, that is, the correction data has a corresponding relationship with the printing terminals and the curing materials adopted in the 3D printing devices corresponding to the printing terminals.

In an embodiment, the correction data includes at least one of image correction data and process correction data.

The image correction data is used to describe modification information related to the image, and the image correction data may include any of an image scaling parameter, an image bias parameter, an image contour compensation parameter, an image gray value adjustment parameter, and the like, for example.

In particular, the image scaling parameters may include an x-direction scaling parameter and a y-direction scaling parameter, which are used to represent a scaling down or up of the slice image, based on the direction in which the image is scaled.

The image offset parameter is used to represent an adjustment parameter of the degree of the gap between two image contours with assembly relationships, such as an image contour of a hole structure and an image contour of an axis structure, in the slice image, and the hole structure is used to set the hole structure. Referring to fig. 3, an illustration of image offset parameters in an embodiment of the present application is shown, which schematically illustrates an image contour 10 of a hole structure in a slice image having an assembly relationship, and an image contour 20 of an axle structure, wherein after printing a three-dimensional object, the axle structure may be disposed in the hole structure, and the image offset parameters are shown as gaps between the image contour 20 of the axle structure and the image contour 10 of the hole structure according to the assembly relationship.

In an embodiment, the image bias parameter may be a fixed value, and the adjustment of each slice image is adjusted according to the fixed value. In other embodiments, to further increase the accuracy of the three-dimensional object being printed, the image offset parameter is associated with the image outline size, e.g., the image offset parameter is a function of the image outline size, and the adjustment of the slice image may vary from one image outline size to another.

The image profile compensation parameter is used to represent an adjustment parameter of a gap between two adjacent but non-assembled image profiles in a slice image, and please refer to fig. 4, which is a schematic illustration of the image profile compensation parameter in an embodiment of the present application, wherein the schematic illustration is an image profile of two corresponding shaft structures in the slice image, the first shaft structure image profile 25 and the second shaft structure image profile 26 are image profiles corresponding to two adjacent shaft structures, and the image profile compensation parameter is the adjustment parameter representing a gap (e.g. denoted as delta) between the first shaft structure image profile 25 and the second shaft structure image profile 26.

The process correction data included in the correction parameters are used to represent the correction information related to the printing process in 3D printing, and may include, for example, an energy adjustment parameter, which is used to represent a parameter for energy adjustment of the energy radiation system, such as an exposure time period or an exposure power adjustment parameter. In some embodiments, the energy adjustment parameter may be a fixed value, and the adjustment of each slice image is adjusted according to the fixed value. In other embodiments, to ensure the reliability of the printing process, the energy adjustment parameter is associated with a slice position, for example, the slice position associated with the energy adjustment parameter is the number of layers of the slice image in the printing process, and the adjustment of the process data of the slice image may be different according to the number of layers of the slice image.

In some application scenarios, the print terminal may also perform auxiliary printing such as print monitoring and support generation during the execution of the print job, so in some embodiments, the correction data may further include function requirement data, where the function requirement data is used to indicate requirement information corresponding to an auxiliary printing function executed by the print terminal, for example, when the print terminal performs bad part detection during the execution of the print job, the function requirement data is used to generate a communication area instruction, and the print terminal may use the communication area as reference information during printing to perform bad part detection. For another example, when the print terminal needs to increase support for the area with insufficient stress in the process of executing the print job, the function requirement data is, for example, a lower surface identification instruction, and when the print terminal is in printing, the print terminal can generate support for the corresponding area in the slice according to the identification information.

It should be noted that the content of the correction data described in the above embodiments is only an example, and those skilled in the art may also adjust or reorganize the correction data according to the needs, which is not limited in this application.

As described above, the correction data has a correspondence relationship with the printing terminal and the curing materials used in the 3D printing apparatus corresponding to the printing terminal, and thus, in some embodiments, the printing terminal pre-stores a correction data list, that is, the correction data list includes correction data corresponding to various curing materials.

In some embodiments, the correction data transmitted by each print terminal is determined based on a user operation. For example, the user operates to select what correction parameters correspond to the cured material. For another example, the user operates to select the function requirement data contained in the correction parameters. The user operation refers to an operation performed by a user on an operation interface of the display device through an input device, including but not limited to clicking (e.g., clicking with an input device such as a mouse), dragging, releasing, etc., and the user operation mentioned later is understood in this way unless otherwise specified, and will not be described again. The input device and the display device used by the user operation can be part of a printing terminal, or can be input device and display device connected by other electronic devices, and the user operation is transmitted to the printing terminal by the other electronic devices. In view of this, in an embodiment, the printing method further includes: the printing terminal displays a selection interface of correction data on the printing terminal based on a user operation.

Referring to fig. 5, a schematic diagram of a correction data selection interface displayed on a printing terminal according to an embodiment of the present application is shown, in which an area a represents an alternative cured Material, the currently available cured Material of the printing terminal may be obtained by a user operating a "Get Materials" virtual key, and fig. 5 illustrates three cured Materials that may be used by the printing terminal to select the cured Material according to the user operation, as shown in the figure, currently corresponding to the correction data of the cured Material "Materials 3". The area B in the figure is displayed as image correction data and process correction data in the correction data, wherein the image scaling parameters are respectively identified as 'Scale X' and 'Scale Y' according to the scaling direction, the image Offset parameters are identified as 'Offset (mm)', the image contour Compensation parameters are identified as 'compaction', the image Gray value adjustment parameters are identified as 'Gray enhancement', and the exposure time adjustment parameters in the process correction data are respectively identified as '1' according to the corresponding relation between the exposure time adjustment parameters and the slice position ^st Layer(s)”、“2 ^nd Layer(s)”、“3 ^rd Layer(s) ". The area C in the figure is represented as optional functional requirement data in the correction data, which can be selected by a userThe required function requirement data includes a lower Surface identification instruction (labeled "Down Surface") and a Connected Region instruction (labeled "Connected Region") as examples, and the user can select the required function requirement data through the input device, such as selecting the Connected Region instruction. The user can Save the selected correction data by operating the virtual key identified as "Save" in preparation for the server system to acquire the correction data, or Cancel the modification or selection of the correction data by operating the virtual key identified as "Cancel". It should be noted that, fig. 5 is only an exemplary illustration, and in practical application, those skilled in the art may perform addition or deletion of parameters based on actual requirements, which is not limited in this application.

With continued reference to fig. 2, in step S110, the server system acquires correction data of a plurality of print terminals corresponding to the three-dimensional model. The correction data may be, for example, sent to the server system by the print terminal in the manner of step S210 in any of the foregoing embodiments, and the content of the correction data may be shown in any of the foregoing embodiments, which is not described herein.

In step S120, the server system adjusts the two-dimensional data of the three-dimensional model accordingly based on the correction data of each print terminal to generate data to be printed respectively corresponding to each print terminal.

The two-dimensional data is information obtained by dispersing a three-dimensional model into a series of two-dimensional layers (also called layering process or slicing process) and adding process parameters. In an embodiment, the two-dimensional data includes slice image data and process data.

The slice image data is used to describe slice images (also referred to as cross-sectional images) of each layer, and includes, for example, information such as image contours and filling paths. The image contour is a contour for describing a corresponding independent structure in the slice image, for example, the image contour of the shaft structure is a circle. In some embodiments, a slice of an image may have multiple image contours within it. The filling paths are parallel lines or grid lines formed based on the image contour, the parallel lines or the grid lines are distributed in the area to be printed, which is defined by the image contour, and the image contour and the coordinate data of the filling paths jointly form a slice image.

The process data is a printing process for correspondingly describing each slice image, and for example, includes energy parameters, which represent energy information required by the energy radiation system to print the slice, and the energy parameters are, for example, exposure time or exposure power. It should be noted that the above description includes two-dimensional data, slice image data, and process data, and the two-dimensional data may include one of slice image data or process data, the slice image data may include other information describing the slice image, such as a gray value of the slice image, and the process data may include other information related to the printing process, such as a moving speed of the energy radiation system, which is not limited in this application.

In one embodiment, the step of the server system adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal includes: and adjusting at least one of gray value, shape and size of the slice image in the two-dimensional data based on the image correction data in the correction data. The server system adjusts the size information of the slice image according to the acquired image correction data, which may include adjusting the zoom-in or zoom-out scale of each slice image, adjusting the degree of deviation between two image contours having an assembly relationship, and adjusting the distance between two adjacent image contours having no assembly relationship.

In an embodiment, the image correction data includes an image scaling parameter, and the adjusting the size information of the slice image includes adjusting an enlargement or reduction ratio of each slice image according to the scaling parameter, and the server system performs equal-scale enlargement or reduction on an image contour of each slice image according to the scaling parameter.

In another embodiment, the image correction data includes an image offset parameter, and the adjusting the size information of the slice image includes adjusting a gap size between two image contours having an assembly relationship. In an example, the offset parameter is a fixed value, and the server system adjusts the gap between two image profiles having an assembly relationship by adjusting the profile of one of the image profiles corresponding to the assembly portion so that the gap between the two image profiles is the fixed value, and of course, the profile of each of the two image profiles corresponding to the assembly portion may also be adjusted so that the gap between the two image profiles is the fixed value. In the following, referring to fig. 6, fig. 6 is a schematic diagram illustrating the adjustment of the size information of the slice image by the server system according to an embodiment of the present application, in which the hole structure image contour 10 having an assembly relationship in the slice image and the shaft structure image contour 20 are illustrated, for example, the image offset parameter is d0, and the server system increases the gap between the image contour 100 and the image contour 101 to d0 according to the image offset parameter, so that the server system can adjust the hole structure image contour 10 by expanding the contour 100 of the corresponding assembly portion outward by d0 (as indicated by the dashed arrow in the figure), and then, after the adjustment, the shaft structure image contour 20 is configured on the adjusted hole structure image contour 10', where the gap between the two is d0. Of course, the adjustment may also be performed by contracting the shaft structure image contour 20 inward by d0, which is not illustrated in the figure.

To further increase the accuracy of the printed three-dimensional object, in other examples, the image correction data includes image offset parameters that are related to image contour dimensions (e.g., the image offset parameters are a function of the image contour dimensions), and the degree of adjustment of the deviation between at least two image contours by the server system is also related to the image contour dimensions, wherein the image contour dimensions refer primarily to the dimensions of the assembled joint of the two. For example, the bias parameter is a positive correlation function associated with the size of the image contours, the greater the degree of adjustment of the deviation between the image contours by the server. In connection with fig. 7, a schematic illustration of the size information of the slice image of the server system in an embodiment of the present application is shown in fig. 7, which is a schematic illustration of the functional relationship between the image Offset parameter and the image contour size (wherein the abscissa r is indicated as the image contour size and the ordinate Offset is indicated as the image Offset parameter), respectively, the pore structure image contour 11 and the shaft structure image contour 21 of the slice image having the aperture r1 in the fitting relationship, the pore structure image contour 12 and the shaft structure image contour 22 of the pore structure image having the aperture r2 in the fitting relationship, respectively, and in the gap adjustment of these two pairs of image contours of different sizes, the server system adjusts the contour 110 of the corresponding fitting portion in the pore structure image contour 11 outwardly by d1 (as indicated by the dashed arrow in fig. 7) to obtain the adjusted pore structure image contour 11 ', and adjusts the contour 120 of the corresponding fitting portion in the pore structure image contour 12 outwardly by d2 (as indicated by the dashed arrow in fig. 7) to obtain the adjusted pore structure image contour 12'. Of course, the axial structure image contour 21 may be adjusted by inwardly shrinking the axial structure image contour 22 by d1, which is not shown in the figure.

In yet another embodiment, the image correction data includes image contour compensation parameters, and the adjusting the size information of the slice image includes adjusting a gap between two adjacent but unassembled image contours, and the server system adjusts the gap between the two image contours by adjusting a shape of a portion of one of the image contours adjacent to the other image contour or adjusting shapes of adjacent portions of the two image contours, respectively. In the following, with reference to fig. 8, fig. 8 is a schematic diagram illustrating the adjustment of the size information of the slice image by the server system in an embodiment of the present application, where the slice image has a third axial structure image contour 23 and a fourth axial structure image contour 24, and the server system adjusts the gap between the two image contours, to modify the shape of the side of the third axial structure image contour 23 near the fourth axial structure image contour 24, so as to obtain an adjusted third axial structure image contour 23', thereby increasing the gap between the two image contours. In fig. 8, the shape of the side of the fourth axis structure image contour 24 near the third axis structure image contour 23 may be adjusted in other embodiments, which is not limited in this application.

It should be noted that, the size information of the adjustment slice image described in the above embodiments is merely illustrative, and in other embodiments, the server system may perform the corresponding adjustment according to the content of the image correction data.

As mentioned above, the correction data may further include process correction data, and thus, in some embodiments, the step of adjusting the two-dimensional model of the three-dimensional model based on the correction data of each printing terminal includes: and adjusting the process data in the two-dimensional data based on the process correction data.

In some embodiments, the process correction data includes an energy adjustment parameter, such as an exposure time adjustment parameter, and the server system modifies the exposure time in the process data based on the adjustment parameter. In some examples, the process correction data includes exposure time adjustment parameters associated with the slice locations such that the server system adjusts the exposure time of each slice image based on the slice image data and the process correction data, respectively, in view of reliability during printing. For example, the slice position is the number of layers in which the slice is located during printing, and the exposure time adjustment parameter includes an adjustment parameter n1 (e.g. "1" in fig. 5) corresponding to the first layer ^st Layer(s) "), an adjustment parameter n2 (e.g." 2 "in fig. 5) corresponding to the second Layer ^nd Layer(s) ") and an adjustment parameter n3 (e.g." 3 "in fig. 5) corresponding to the third Layer ^rd Layer(s) "), the server system respectively adjusts the process data corresponding to the slice image data of the corresponding Layer in the two-dimensional data according to the adjustment parameters of the three layers, when the adjustment parameter n1 of the first Layer is larger, the server system can adjust the exposure time corresponding to the slice image data of the first Layer to be larger, and when the printing terminal prints the first Layer, the first printing Layer is attached to the component platform more tightly, so that the problem of dropping an object in printing can be prevented. Of course, the above is merely illustrative, and a person skilled in the art can correspondingly adjust the worker corresponding to the slice image data according to the specific meaning of the slice position and the specific relation with the exposure time length adjustment parameterArt data.

As described above, in some embodiments, the correction data may further include function requirement data, and the step of adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal includes: and generating corresponding function support data based on the function requirement data. For example, the print terminal performs bad part detection during execution of the print job, and the function demand data is, for example, a connected region instruction, and the server system generates projected image information of the three-dimensional model as function support data according to the connected region instruction. For another example, the print terminal needs to increase support for the area with insufficient stress in the process of executing the print job, and the function requirement data is, for example, a lower surface identification instruction, and the server system marks the area with insufficient stress in the slice image as function support data according to the lower surface identification instruction.

As described above, in step S120, the server system correspondingly adjusts the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal, and generates data to be printed corresponding to each printing terminal. That is, the server system adjusts the two-dimensional data of the corresponding three-dimensional model according to the corresponding relationship between the three-dimensional model and the print terminals and the correction data of each print terminal in the manner described in any of the embodiments. For example, if the server system obtains a three-dimensional model, and the three-dimensional model corresponds to the first printing terminal and the second printing terminal respectively, that is, the first printing terminal and the second printing terminal are both used for printing the three-dimensional object corresponding to the three-dimensional model, the server system modifies the two-dimensional data of the three-dimensional model based on the correction data of the first printing terminal to generate the data to be printed of the first printing terminal, and modifies the two-dimensional data of the three-dimensional model based on the correction data of the second printing terminal to generate the data to be printed of the second printing terminal. For another example, the server system acquires two three-dimensional models, namely a first three-dimensional model and a second three-dimensional model, wherein the first three-dimensional model corresponds to a first printing terminal, the second three-dimensional model corresponds to a second printing terminal, namely, the first printing terminal is used for printing a three-dimensional object corresponding to the first three-dimensional model, the second printing terminal is used for printing a three-dimensional object corresponding to the second three-dimensional model, the server system modifies the two-dimensional data of the first three-dimensional model based on the correction data of the first printing terminal to generate data to be printed of the first printing terminal, and modifies the two-dimensional data of the second three-dimensional model based on the correction data of the second printing terminal to generate data to be printed of the second printing terminal. It should be noted that the above numbers and corresponding relations are only exemplary, and the corresponding relation between the three-dimensional model and the printing terminal and the number of the printing terminals may be adjusted according to practical applications, which is not limited in this application.

The file to be printed refers to generating code information identifiable by the printing terminal based on the adjusted two-dimensional data (such as slice image data, process data and function support data), for example, the data to be printed is a GCode file. In some embodiments, the data to be printed further includes identification information of the corresponding printing terminal, for example, unique identification such as address, number, etc. of the printing terminal, so that the data to be printed can be allocated to the corresponding printing terminal.

As shown in fig. 2, in step S130, the server system allocates respective corresponding data to be printed to each printing terminal so that the three-dimensional object printed by each printing terminal based on the data to be printed reaches the same expectation.

In some embodiments, the data to be printed includes identification information of the corresponding printing terminal, and the server system distributes each data to be printed to its corresponding printing terminal based on the identification information.

Since the data to be printed is a modification of the two-dimensional data of the three-dimensional model by the server system based on the correction data of each printing terminal, the correction data refers to a correction parameter of the corresponding cured material set so that at least one of the color, shape, and size of the three-dimensional object printed by the printing device corresponding to each printing terminal satisfies the same expected accuracy. Therefore, after each printing terminal controls the printing device to perform a print job based on the respective data to be printed, the obtained three-dimensional object can achieve the same expectation. The same expectation may be, for example, that the three-dimensional object as a whole achieves the same expectation, or that a portion of a specific structure or a specific shape achieves the same expectation.

In an embodiment, the same expectation refers to a preset printing accuracy threshold, and the three-dimensional objects printed by each printing terminal can meet the printing accuracy threshold. Taking the printed three-dimensional object as an example of the tooth object, the preset printing precision is any value between 10 μm and 20 μm, for example, 10 μm, 15 μm, or 20 μm may be set.

As shown in fig. 2, in step S220, each printing terminal receives data to be printed allocated by the server system, and prints a three-dimensional model based on the data to be printed, so that three-dimensional objects printed by each printing terminal can achieve the same expectation.

In one embodiment, the printing terminal controls the printing device to print the three-dimensional object after receiving the data to be printed. The structure of the printing apparatus is shown in fig. 1, and the printing terminal controls the Z-axis moving mechanism 53 and the energy radiation system 54 of the printing apparatus to work in coordination according to the data to be printed, thereby obtaining a three-dimensional object.

Referring now to FIG. 9, a schematic diagram of a data processing system is shown, in which the data processing system 30 includes: an acquisition module 300, a processing module 301, and a transmission module 302. The data processing system 30 may be configured on a server system.

The acquisition module 300 is configured to acquire correction data of a plurality of print terminals corresponding to the three-dimensional model. The process of the obtaining module 300 indicating the hardware device to perform the corresponding operation corresponds to the step S110 in the foregoing examples, which is not described in detail herein. The hardware device is a hardware device corresponding to the server system.

The processing module 301 is configured to correspondingly adjust two-dimensional data of the three-dimensional model based on the correction data of each print terminal, so as to generate a plurality of data to be printed corresponding to each print terminal. The process of instructing the hardware device to perform the corresponding operation by the processing module 301 corresponds to the step S120 in the foregoing embodiments, which is not described in detail herein.

The display module 302 is configured to allocate respective corresponding data to be printed to each print terminal, so that each print terminal achieves the same expectation based on the three-dimensional model printed by the data to be printed. The process of instructing the hardware device to perform the corresponding operation by the display module 302 corresponds to the step S130 in the foregoing examples, which is not described in detail herein.

The present application also provides a computer-readable storage medium storing at least one program that, when called, executes and implements the data processing method or the 3D printing method described in any of the above embodiments.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in the form of a software product stored in a storage medium comprising several instructions for enabling a mobile robot installed with said storage medium to perform all or part of the steps of the method described in the various embodiments of the present application.

In the embodiments provided herein, the computer-readable storage medium may include read-only memory, random-access memory, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, flash memory, U-disk, removable hard disk, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer. In addition, any connection is properly termed a computer-readable medium. For example, if the instructions are transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. It should be understood, however, that computer-readable and data storage media do not include connections, carrier waves, signals, or other transitory media, but are intended to be directed to non-transitory, tangible storage media. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers.

The flowcharts and block diagrams in the figures described herein illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The foregoing embodiments are merely illustrative of the principles of the present application and their effectiveness, and are not intended to limit the application. Modifications and variations may be made to the above-described embodiments by those of ordinary skill in the art without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications and variations which may be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the disclosure be covered by the claims of this application.

Claims

1. A data processing method, which is applied to a printing system including a server system and a plurality of printing terminals, comprising:

acquiring correction data of a plurality of printing terminals corresponding to the three-dimensional model; the correction data refers to correction parameters of corresponding curing materials which are set for enabling the colors, shapes and/or sizes of three-dimensional objects printed by the printing terminals to meet the same expected precision;

correspondingly adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal to generate data to be printed corresponding to each printing terminal;

and distributing the corresponding data to be printed to each printing terminal so that the three-dimensional objects printed by each printing terminal based on the data to be printed reach the same expectation, wherein the three-dimensional objects reach the same expectation and comprise the three-dimensional objects meeting a preset printing precision threshold.

2. A data processing method according to claim 1, wherein the correction data comprises image correction data and/or process correction data.

3. The data processing method according to claim 1, wherein the two-dimensional data includes slice image data and/or process data.

4. The data processing method according to claim 1, wherein the step of adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal accordingly includes: adjusting at least one of a gray value, a shape, and a size of a slice image in the two-dimensional data based on image correction data in the correction data; and/or adjusting the process data in the two-dimensional data based on the process correction data in the correction data.

5. The data processing method according to claim 4, wherein adjusting the size information of the slice image includes: a gap between two image contours having a fitting relationship and/or a gap between adjacent but non-fitting image contours.

6. The data processing method of claim 5, wherein the degree of adjustment of the gap between the two image profiles having the fitting relationship is related to the size of the image profile.

7. The method of claim 6, wherein adjusting the process data in the two-dimensional data comprises adjusting an exposure time period or adjusting an exposure power.

8. The data processing method according to claim 1, wherein the same expectation means that printing accuracy satisfies 10 μm to 20 μm.

9. The data processing method according to claim 1, wherein the correction data includes function demand data, and the step of adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal accordingly includes: and generating corresponding function support data based on the function requirement data.

10. The data processing method according to claim 1, characterized by further comprising: and determining the corresponding relation between the three-dimensional model and the plurality of printing terminals.

11. The data processing method according to claim 1, wherein the three-dimensional model corresponds to a model of a tooth object, and the printed three-dimensional object is a tooth object.

12. A data processing system, the data processing system comprising:

the acquisition module is used for acquiring correction data of a plurality of printing terminals corresponding to the three-dimensional model; the correction data refers to correction parameters of corresponding curing materials which are set for enabling the colors, shapes and/or sizes of three-dimensional objects printed by the printing terminals to meet the same expected precision;

The processing module is used for correspondingly adjusting the two-dimensional data of the three-dimensional model based on the correction data of each printing terminal so as to generate a plurality of data to be printed which respectively correspond to each printing terminal;

and the sending module is used for distributing the corresponding data to be printed to each printing terminal so that the three-dimensional objects printed by each printing terminal based on the data to be printed reach the same expectation, wherein the three-dimensional objects reach the same expectation and comprise the three-dimensional objects meeting a preset printing precision threshold.

13. A server system, the server system comprising:

a storage device for storing at least one program; and

processing means, coupled to said storage means, for reading said at least one program to perform the data processing method according to any of claims 1-11.

14. A 3D printing method applied to each printing terminal connected to a server system, the 3D printing method comprising:

transmitting the respective correction data to a server system, so that the server system correspondingly adjusts the two-dimensional data of the three-dimensional model corresponding to each printing terminal based on the correction data of each printing terminal to generate data to be printed corresponding to each printing terminal; the correction data refers to correction parameters of corresponding curing materials which are set for enabling the colors, shapes and/or sizes of three-dimensional objects printed by the printing terminals to meet the same expected precision;

Receiving data to be printed distributed by the server system, and printing a three-dimensional object corresponding to the three-dimensional model based on the data to be printed; the three-dimensional objects printed by the printing terminals can reach the same expectation, and the three-dimensional objects reach the same expectation, wherein the three-dimensional objects meet a preset printing precision threshold.

15. The 3D printing method according to claim 14, wherein the correction data comprises image correction data and/or process correction data.

16. The 3D printing method as defined in claim 14, wherein the printing terminal pre-stores a correction data list including correction data corresponding to each cured material.

17. The 3D printing method as defined in claim 14, further comprising: and displaying a selection interface of the correction data on the printing terminal based on the user selection.

18. A 3D printing apparatus, comprising:

a container for Cheng Fangguang cured material;

an energy radiation system for irradiating the photo-curable material in the container to obtain a pattern cured layer;

a member stage for attaching the pattern cured layer cured by irradiation;

the Z-axis driving mechanism is connected with the component platform and is used for controllably moving and adjusting the interval between the component platform and the printing reference surface along the vertical axial direction and filling the photo-curing material to be cured;

A printing terminal connected to the energy radiation system and the Z-axis drive mechanism for performing the 3D printing method according to any one of claims 14-17.

19. The 3D printing device of claim 18, wherein the 3D printing device comprises one of a SLA-based 3D printing device, a DLP-based 3D printing device, an LCD-based 3D printing device, an SLM-based 3D printing device, an LSL-based 3D printing device, or an FDM-based 3D printing device.

20. A computer storage medium, characterized in that at least one program is stored, which when executed by a processor performs the data processing method according to any one of claims 1-11; alternatively, the program, when executed by a processor, performs the 3D printing method according to any one of claims 14 to 17.

21. A printing system, the printing system comprising:

a plurality of printing terminals, each printing terminal for performing the 3D printing method according to any one of claims 14-17;

server system, connected to each printing terminal, for executing the data processing method according to any one of claims 1 to 11.