CN112895464A - 3D printing method and device, electronic equipment and storage medium - Google Patents
3D printing method and device, electronic equipment and storage medium Download PDFInfo
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- CN112895464A CN112895464A CN202110193790.XA CN202110193790A CN112895464A CN 112895464 A CN112895464 A CN 112895464A CN 202110193790 A CN202110193790 A CN 202110193790A CN 112895464 A CN112895464 A CN 112895464A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
Abstract
The embodiment of the invention discloses a 3D printing method, a device, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring an original printing path and original printing parameters of a model to be printed; determining a seam printing path according to the original printing path and the preset seam length; determining the material extrusion amount of the seam printing path in unit time according to the original printing parameters; determining real-time material extrusion amount in a seam printing path according to the material extrusion amount in unit time, wherein the real-time material extrusion amount is gradually changed along with time; generating a target printing path according to the original printing path and the seam printing path; generating target printing parameters according to the original printing parameters and the real-time material extrusion amount; and printing the model to be printed according to the target printing parameters and the target printing path. According to the embodiment of the invention, the seam of each layer of outline of the model is formed by two complementary inclined planes, so that the seam of each layer of the model is hidden and reduced, and the attractiveness of the model is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of 3D printing, in particular to a 3D printing method and device, electronic equipment and a storage medium.
Background
3D printing is one of the rapid prototyping technologies, also known as additive manufacturing. Due to the characteristics of wide application range, intuitive operation, high speed of producing articles and the like, the application range of 3D printing is wider and wider.
The FDM (Fused Deposition Modeling) technique is a technique widely used in 3D printing at present, and is a layer-by-layer overlay printing technique. In the printing process, each printed layer has a certain height, and when one layer is printed, the next layer can be printed only by filling the inside of the printed layer, so that the model contour (also called the outer wall) cannot be printed, and a joint exists after the contour of each layer is printed. The material just extruded by the material extruder of the FDM printer is fluid liquid, and due to the fact that the material is difficult to be well connected at the joint under the action of gravity, a very obvious gap exists at the joint. When the layers are stacked together, there is a visible seam in the outer wall of the mold, which greatly detracts from the aesthetics of the mold. At present, the seam can be hidden by hiding the sharp corner of the model, randomly dispersing and the like, but the seam still exists actually and cannot be eliminated or lightened well.
Disclosure of Invention
In view of this, embodiments of the present invention provide a 3D printing method, apparatus, electronic device and storage medium to reduce the visibility of model seams and improve the aesthetic property of models.
In a first aspect, an embodiment of the present invention provides a 3D printing method, including:
acquiring an original printing path and original printing parameters of a model to be printed;
determining a seam printing path according to the original printing path and a preset seam length;
determining the material extrusion amount of the joint printing path in unit time according to the original printing parameters;
determining real-time material extrusion amount in the seam printing path according to the material extrusion amount in unit time, wherein the real-time material extrusion amount is gradually changed along with time;
generating a target printing path according to the original printing path and the seam printing path;
generating target printing parameters according to the original printing parameters and the real-time material extrusion amount;
and printing the model to be printed according to the target printing parameters and the target printing path.
Further, the determining a seam printing path according to the original printing path and a preset seam length includes:
determining a contour starting point and a contour end point according to the original printing path;
and taking the preset seam length after the outline starting point as a first seam printing path, and taking the preset seam length after the outline end point as a second seam printing path.
Further, the raw printing parameters include raw material extrusion amount and printing speed, and the determining the material extrusion amount per unit time of the seam printing path according to the raw printing parameters includes:
determining the printing duration of the seam printing path according to the printing speed and the preset seam length;
determining the total material extrusion amount of the seam printing path according to the original material extrusion amount and the printing duration;
and determining the material extrusion amount of the joint printing path in unit time according to the total material extrusion amount and the printing time length.
Further, the determining the real-time material extrusion amount in the seam printing path according to the material extrusion amount per unit time includes:
determining a first real-time material extrusion amount of the first seam printing path according to the material extrusion amount in unit time;
and determining a second real-time material extrusion amount of the second seam printing path according to the first real-time material extrusion amount, wherein the sum of the first real-time material extrusion amount and the second real-time material extrusion amount is equal to the material extrusion amount in unit time.
Further, before generating the target printing path according to the original printing path and the seam printing path, the method further includes:
setting a preset idle running length after the second seam printing path as an idle running path;
and setting the extrusion capacity of the idle running material corresponding to the idle running path to be zero.
Further, the generating a target print path according to the original print path and the seam print path includes:
and combining the original printing path, the first seam printing path, the second seam printing path and the idle running path to generate a target printing path.
Further, the generating target printing parameters according to the original printing parameters and the real-time material extrusion amount includes:
and combining the original printing parameters, the first real-time material extrusion amount, the second real-time material extrusion amount and the idle running material extrusion amount to generate target printing parameters.
In a second aspect, an embodiment of the present invention provides a 3D printing apparatus, including:
the printing parameter acquisition module is used for acquiring an original printing path and original printing parameters of the model to be printed;
the seam printing path determining module is used for determining a seam printing path according to the original printing path and the preset seam length;
the material extrusion amount per unit time determining module is used for determining the material extrusion amount per unit time of the seam printing path according to the original printing parameters;
the real-time material extrusion amount determining module is used for determining the real-time material extrusion amount in the seam printing path according to the material extrusion amount in unit time, and the real-time material extrusion amount gradually changes along with time;
the target printing path generating module is used for generating a target printing path according to the original printing path and the seam printing path;
the target printing parameter generating module is used for generating target printing parameters according to the original printing parameters and the real-time material extrusion amount;
and the printing module is used for printing the model to be printed according to the target printing parameters and the target printing path.
In a third aspect, an embodiment of the present invention provides an electronic device, including:
one or more processors;
a storage device for storing one or more programs,
when the one or at least one program is executed by the one or more processors, the one or more processors are caused to implement the 3D printing method provided by any embodiment of the present invention.
In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium on which a computer program is stored, the program, when executed by a processor, implementing a 3D printing method provided by any of the embodiments of the present invention.
The 3D printing method provided by the embodiment of the invention generates the real-time material extrusion amount of the seam printing path according to the material extrusion amount in unit time, so that the seam of each layer of the outline of the model is formed by two complementary inclined planes, and the contact surfaces of the two complementary inclined planes are hidden in the outline of each layer of the model in the height direction, thereby hiding and reducing the seam of each layer of the model and improving the attractiveness of the model.
Drawings
Fig. 1 is a schematic flow chart of a 3D printing method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a 3D printing method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a 3D printing apparatus according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. A process may be terminated when its operations are completed, but may have additional steps not included in the figure. A process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.
Furthermore, the terms "first," "second," and the like may be used herein to describe various orientations, actions, steps, elements, or the like, but the orientations, actions, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. The terms "first", "second", etc. are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality", "batch" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Example one
Fig. 1 is a schematic flow chart of a 3D printing method according to an embodiment of the present invention. As shown in fig. 1, a 3D printing method according to a first embodiment of the present invention includes:
and S110, acquiring an original printing path and original printing parameters of the model to be printed.
Specifically, the original printing path is a printing path automatically generated after slicing the model to be printed. The original printing parameters are parameters preset during printing, such as printing layer thickness, printing wall thickness, printing speed and the like.
And S120, determining a seam printing path according to the original printing path and the preset seam length.
Specifically, the preset seam length is preset by the user to determine the seam path (i.e., seam length or seam range) of each layer of the model to be printed. According to the original printing path, starting from the starting point of each layer of outline, and then the distance of the preset seam length is the seam path. In the printing process of printing the seam path, the method comprises two seam printing paths: a first seam print path and a second seam print path. The difference is that the first seam printing path is a path for the printing nozzle to print the seam path for the first time, and the second seam printing path is a path for the printing nozzle to print the seam path again after completing printing of one layer of the model to be printed.
Generally, the preset seam length is determined according to the size of the outline of the model to be printed, and when the outline of the model to be printed is larger, the larger preset seam length can be set; when the profile of the model to be printed is small, a small preset seam length can be set. Preferably, the predetermined seam length is 1-2 mm.
S130, determining the material extrusion amount of the joint printing path in unit time according to the original printing parameters.
Specifically, the material extrusion amount per unit time is also an average material extrusion amount in the joint path, and can be determined by the total material extrusion amount in the joint path and the printing time length. The printing duration can be determined according to the length of the seam path (namely the preset seam length) and the printing speed in the original printing parameters, and the total material extrusion amount can be determined according to the printing duration and the material extrusion amount in the original printing parameters.
S140, determining the real-time material extrusion amount in the seam printing path according to the material extrusion amount in unit time, wherein the real-time material extrusion amount is gradually changed along with time.
Specifically, the real-time material extrusion amount refers to the material extrusion amount at each moment in the printing process of the seam printing path. The real-time material extrusion may be obtained by multiplying the time-dependent material extrusion by a time-dependent coefficient, such that the real-time material extrusion within the seam print path is time-dependent. In this embodiment, the real-time material throughput includes two complementary portions: the first real-time material extrusion amount corresponds to a first seam printing path and is gradually increased along with time; the second real-time material throughput corresponds to a second seam print path that gradually decreases over time. Two complementary inclined planes can be formed by printing according to the first real-time material extrusion amount and the second real-time material extrusion amount, and the contact surfaces of the two complementary inclined planes are hidden in the outline of each layer of the model in the height direction, so that the seam of each layer of the model is hidden and reduced, and the attractiveness of the model is improved.
And S150, generating a target printing path according to the original printing path and the seam printing path.
Specifically, the original printing path and the seam printing path are combined to obtain a target printing path. In the original printing path, the distance of the preset seam length only comprises a section of normal printing path, the section of normal printing path is replaced by a seam printing path, namely, the section of normal printing path is replaced by a first seam printing path, and then a second seam printing path is added at the end of the original printing path to form a target printing path.
And S160, generating target printing parameters according to the original printing parameters and the real-time material extrusion amount.
Specifically, the printing parameters correspond to the printing paths, the material extrusion amount corresponding to the preset seam length in the original printing parameters is replaced with the real-time material extrusion amount corresponding to the seam printing paths, that is, the material extrusion amount corresponding to the seam paths in the original printing parameters is replaced with the first real-time material extrusion amount, and the second real-time material extrusion amount corresponding to the second seam printing paths is increased to form the target printing parameters.
S170, printing operation is carried out on the model to be printed according to the target printing parameters and the target printing path.
Specifically, after the target printing parameters and the target printing path are generated, the model to be printed can be printed. In the printed model, the interface of each layer is formed by two complementary inclined planes, so that the interface is smoother, gaps are difficult to see, and the attractiveness of the model is greatly improved.
According to the 3D printing method provided by the embodiment of the invention, the real-time material extrusion amount of the seam printing path is generated according to the material extrusion amount in unit time, so that the seam of each layer of the outline of the model is formed by two complementary inclined planes, and the contact surfaces of the two complementary inclined planes are hidden in the outline of each layer of the model in the height direction, so that the seam of each layer of the model is hidden and reduced, and the attractiveness of the model is improved.
Example two
Fig. 2 is a schematic flow chart of a 3D printing method according to a second embodiment of the present invention, which is a further refinement of the first embodiment. As shown in fig. 2, a 3D printing method provided by the second embodiment of the present invention includes:
s201, obtaining an original printing path and original printing parameters of the model to be printed, wherein the original printing parameters comprise an original material extrusion amount and a printing speed.
Specifically, the raw material extrusion amount refers to the amount of the printing material extruded by the initially set printing nozzle at each moment in the printing process. The printing speed is the moving speed of the printing nozzle.
And S202, determining a contour starting point and a contour end point according to the original printing path.
Specifically, after the model to be printed is sliced, each layer has a contour starting point and a contour ending point, the contour starting point is a position where the contour starts to be printed, and the contour ending point is a position where the contour ends to be printed. Typically, an interface occurs when the outline of a layer of the model to be printed is a closed figure, in which case the outline start and end points are usually the same point. It is to be understood that when a layer of a contour is divided into a plurality of segments for printing, the contour start point and the contour end point refer to the interface points of the two segments of the contour.
And S203, taking the preset seam length after the starting point of the contour as a first seam printing path, and taking the preset seam length after the end point of the contour as a second seam printing path.
Specifically, the preset seam length after the contour starting point is a first seam printing path, that is, the path when the printing nozzle prints the path within the preset seam length for the first time from the contour starting point is the first seam printing path. The preset seam length after the contour end point is used as a second seam printing path, that is, the printing nozzle starts from the contour start point, reaches the contour end point (equivalent to returning to the contour start point) after completing the printing of one layer of the model to be printed, and the path when printing the path within the preset seam length again is used as the second seam printing path.
And S204, determining the material extrusion amount of the joint printing path in unit time according to the original printing parameters.
Specifically, the seam printing path comprises a first seam printing path and a second seam printing path, and the first seam printing path and the second seam printing path are the same in length, so that the first seam printing path and the second seam printing path correspond to the same material extrusion amount in unit time.
Further, the step of determining the material extrusion amount in unit time specifically comprises the following steps: determining the printing duration of the seam printing path according to the printing speed and the preset seam length; determining the total material extrusion amount of the seam printing path according to the original material extrusion amount and the printing duration; and determining the material extrusion amount of the joint printing path in unit time according to the total material extrusion amount and the printing time length.
Specifically, the length of the seam printing path is a preset seam length L, and the printing speed v of the printing nozzle is known, so that the printing time t required by the seam printing path is0L/v. And multiplying the extrusion amount of the original material by the printing time to obtain the total extrusion amount E of the material. Extruding the materialsDividing the total amount by the printing time length to obtain the material extrusion amount E in unit time in the seam printing path0。
S205, determining a first real-time material extrusion amount of the first seam printing path according to the material extrusion amount in unit time.
Specifically, in order to form an inclined plane in the preset seam length L, the material extrusion amount in the unit time of the preset seam length L is increased from 0 to the material extrusion amount e in the unit time, and then the first real-time material extrusion amount is
S206, determining a second real-time material extrusion amount of the second seam printing path according to the first real-time material extrusion amount.
Specifically, in order to make the slope formed by the first seam printing path complementary to the slope formed by the second seam printing path, the first real-time material extrusion amount and the second real-time material extrusion amount should also be complementary, that is, the sum of the first real-time material extrusion amount and the second real-time material extrusion amount is equal to the material extrusion amount per unit time, and then the second real-time material extrusion amount is
And S207, setting the preset idle running length after the second seam printing path as an idle running path.
And S208, setting the extrusion amount of the idle running material corresponding to the idle running path to be zero.
Specifically, after the second seam printing path, a section of idle running path is set, that is, after the printing of the second seam printing path is completed, the printing nozzle continues to move by the preset idle running length X. In this process, the material extrusion amount of the printing head was 0. The idle running path enables the connection between the inclined plane formed by the first seam printing path and the inclined plane formed by the second seam printing path to be smoother, and further plays a role in reducing seams.
S209, combining the original printing path, the first seam printing path, the second seam printing path and the idle running path to generate a target printing path.
Specifically, in the original printing path, the original printing path corresponding to the preset seam length is replaced by a first seam printing path, and then a second seam printing path and an idle path are added at the end of the original printing path to form a target printing path.
S210, combining the original printing parameters, the first real-time material extrusion amount, the second real-time material extrusion amount and the idle running material extrusion amount to generate target printing parameters.
Specifically, the material extrusion amount corresponding to the preset seam length in the original printing parameters is replaced by the first real-time material extrusion amount, and the second real-time material extrusion amount corresponding to the second seam printing path and the idle running material extrusion amount corresponding to the idle running path are increased to form the target printing parameters.
S211, printing the model to be printed according to the target printing parameters and the target printing path.
Specifically, after the target printing parameters and the target printing path are generated, the model to be printed can be printed. In the printed model, the interface of each layer is formed by two complementary inclined planes, so that the interface is smoother, gaps are difficult to see, and the attractiveness of the model is greatly improved.
The 3D printing method provided by the embodiment of the invention generates the real-time material extrusion amount of the seam printing path according to the material extrusion amount in unit time, so that the seam of each layer of the outline of the model is formed by two complementary inclined planes, and the contact surfaces of the two complementary inclined planes are hidden in the outline of each layer of the model in the height direction, thereby hiding and reducing the seam of each layer of the model and improving the attractiveness of the model.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a 3D printing apparatus according to a third embodiment of the present invention. The 3D printing apparatus provided in this embodiment can implement the 3D printing method provided in any embodiment of the present invention, and has a corresponding functional structure and beneficial effects of the implementation method, and reference may be made to the description of any method embodiment of the present invention for content that is not described in detail in this embodiment.
As shown in fig. 3, a 3D printing apparatus provided in a third embodiment of the present invention includes: a print parameter acquisition module 310, a seam print path determination module 320, a material extrusion per unit time determination module 330, a real-time material extrusion determination module 340, a target print path generation module 350, a target print parameter generation module 360, and a print module 370, wherein:
the printing parameter obtaining module 310 is configured to obtain an original printing path and an original printing parameter of a model to be printed;
the seam printing path determining module 320 is configured to determine a seam printing path according to the original printing path and a preset seam length;
the material extrusion amount per unit time determining module 330 is configured to determine the material extrusion amount per unit time of the seam printing path according to the original printing parameters;
the real-time material extrusion amount determining module 340 is configured to determine a real-time material extrusion amount in the seam printing path according to the material extrusion amount per unit time, where the real-time material extrusion amount gradually changes with time;
the target printing path generating module 350 is configured to generate a target printing path according to the original printing path and the seam printing path;
the target printing parameter generating module 360 is configured to generate a target printing parameter according to the original printing parameter and the real-time material extrusion amount;
the printing module 370 is configured to perform a printing operation on the model to be printed according to the target printing parameter and the target printing path.
Further, the seam print path determining module 320 is specifically configured to:
determining a contour starting point and a contour end point according to the original printing path;
and taking the preset seam length after the outline starting point as a first seam printing path, and taking the preset seam length after the outline end point as a second seam printing path.
Further, the material extrusion amount per unit time determining module 330 is specifically configured to:
determining the printing duration of the seam printing path according to the printing speed and the preset seam length;
determining the total material extrusion amount of the seam printing path according to the original material extrusion amount and the printing duration;
and determining the material extrusion amount of the joint printing path in unit time according to the total material extrusion amount and the printing time length.
Further, the real-time material extrusion amount determining module 340 is specifically configured to:
determining a first real-time material extrusion amount of the first seam printing path according to the material extrusion amount in unit time;
and determining a second real-time material extrusion amount of the second seam printing path according to the first real-time material extrusion amount, wherein the sum of the first real-time material extrusion amount and the second real-time material extrusion amount is equal to the material extrusion amount in unit time.
Further, the method also comprises the following steps:
the idle running path setting module is used for setting the preset idle running length after the second seam printing path as an idle running path; and setting the extrusion capacity of the idle running material corresponding to the idle running path to be zero.
Further, the target print path generating module 350 is specifically configured to:
and combining the original printing path, the first seam printing path, the second seam printing path and the idle running path to generate a target printing path.
Further, the target printing parameter generating module 360 is specifically configured to:
and combining the original printing parameters, the first real-time material extrusion amount, the second real-time material extrusion amount and the idle running material extrusion amount to generate target printing parameters.
According to the 3D printing device provided by the third embodiment of the invention, the printing parameter acquisition module, the seam printing path determination module, the material extrusion amount determination module in unit time, the real-time material extrusion amount determination module, the target printing path generation module, the target printing parameter generation module and the printing module can be used for generating the real-time material extrusion amount of the seam printing path according to the material extrusion amount in unit time, so that the seam of each layer of the outline of the model is formed by two complementary inclined planes, and the contact surface of the two complementary inclined planes is hidden in the outline of each layer of the model in the height direction, so that the seam of each layer of the model is hidden and reduced, and the attractiveness of the model is improved.
Example four
Fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention. FIG. 4 illustrates a block diagram of an exemplary electronic device 412 suitable for use in implementing embodiments of the present invention. The electronic device 412 shown in fig. 4 is only an example and should not bring any limitations to the functionality and scope of use of the embodiments of the present invention.
As shown in fig. 4, the electronic device 412 is in the form of a general purpose electronic device. The components of the electronic device 412 may include, but are not limited to: one or more processors 416, a storage device 428, and a bus 418 that couples the various system components including the storage device 428 and the processors 416.
A program/utility 440 having a set (at least one) of program modules 442 may be stored, for instance, in storage 428, such program modules 442 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. The program modules 442 generally perform the functions and/or methodologies of the described embodiments of the invention.
The electronic device 412 may also communicate with one or more external devices 414 (e.g., keyboard, pointing terminal, display 424, etc.), with one or more terminals that enable a user to interact with the electronic device 412, and/or with any terminals (e.g., network card, modem, etc.) that enable the electronic device 412 to communicate with one or more other computing terminals. Such communication may occur via input/output (I/O) interfaces 422. Also, the electronic device 412 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public Network, such as the internet) via the Network adapter 420. As shown in FIG. 4, network adapter 420 communicates with the other modules of electronic device 412 over bus 418. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 412, including but not limited to: microcode, end drives, Redundant processors, external disk drive Arrays, RAID (Redundant Arrays of Independent Disks) systems, tape drives, and data backup storage systems, among others.
The processor 416 executes various functional applications and data processing by executing programs stored in the storage device 428, for example, implementing a 3D printing method provided by any embodiment of the present invention, which may include:
acquiring an original printing path and original printing parameters of a model to be printed;
determining a seam printing path according to the original printing path and a preset seam length;
determining the material extrusion amount of the joint printing path in unit time according to the original printing parameters;
determining real-time material extrusion amount in the seam printing path according to the material extrusion amount in unit time, wherein the real-time material extrusion amount is gradually changed along with time;
generating a target printing path according to the original printing path and the seam printing path;
generating target printing parameters according to the original printing parameters and the real-time material extrusion amount;
and printing the model to be printed according to the target printing parameters and the target printing path.
EXAMPLE five
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a 3D printing method according to any embodiment of the present invention, where the method may include:
acquiring an original printing path and original printing parameters of a model to be printed;
determining a seam printing path according to the original printing path and a preset seam length;
determining the material extrusion amount of the joint printing path in unit time according to the original printing parameters;
determining real-time material extrusion amount in the seam printing path according to the material extrusion amount in unit time, wherein the real-time material extrusion amount is gradually changed along with time;
generating a target printing path according to the original printing path and the seam printing path;
generating target printing parameters according to the original printing parameters and the real-time material extrusion amount;
and printing the model to be printed according to the target printing parameters and the target printing path.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, or the like, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or terminal. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A3D printing method, comprising:
acquiring an original printing path and original printing parameters of a model to be printed;
determining a seam printing path according to the original printing path and a preset seam length;
determining the material extrusion amount of the joint printing path in unit time according to the original printing parameters;
determining real-time material extrusion amount in the seam printing path according to the material extrusion amount in unit time, wherein the real-time material extrusion amount is gradually changed along with time;
generating a target printing path according to the original printing path and the seam printing path;
generating target printing parameters according to the original printing parameters and the real-time material extrusion amount;
and printing the model to be printed according to the target printing parameters and the target printing path.
2. The 3D printing method of claim 1, wherein the determining a seam print path based on the original print path and a preset seam length comprises:
determining a contour starting point and a contour end point according to the original printing path;
and taking the preset seam length after the outline starting point as a first seam printing path, and taking the preset seam length after the outline end point as a second seam printing path.
3. The 3D printing method of claim 1, wherein the raw printing parameters include raw material throughput and printing speed, and wherein determining material throughput per unit time of the seam printing path from the raw printing parameters comprises:
determining the printing duration of the seam printing path according to the printing speed and the preset seam length;
determining the total material extrusion amount of the seam printing path according to the original material extrusion amount and the printing duration;
and determining the material extrusion amount of the joint printing path in unit time according to the total material extrusion amount and the printing time length.
4. The 3D printing method as claimed in claim 2, wherein said determining a real-time material extrusion rate within the seam print path from the material extrusion rate per unit time comprises:
determining a first real-time material extrusion amount of the first seam printing path according to the material extrusion amount in unit time;
and determining a second real-time material extrusion amount of the second seam printing path according to the first real-time material extrusion amount, wherein the sum of the first real-time material extrusion amount and the second real-time material extrusion amount is equal to the material extrusion amount in unit time.
5. The 3D printing method as claimed in claim 2, wherein before generating a target print path from the original print path and the seam print path, further comprising:
setting a preset idle running length after the second seam printing path as an idle running path;
and setting the extrusion capacity of the idle running material corresponding to the idle running path to be zero.
6. The 3D printing method of claim 5, wherein the generating a target print path from the original print path and the seam print path comprises:
and combining the original printing path, the first seam printing path, the second seam printing path and the idle running path to generate a target printing path.
7. The 3D printing method of claim 5, wherein generating target printing parameters from the raw printing parameters and the real-time material throughput comprises:
and combining the original printing parameters, the first real-time material extrusion amount, the second real-time material extrusion amount and the idle running material extrusion amount to generate target printing parameters.
8. A3D printing device, comprising:
the printing parameter acquisition module is used for acquiring an original printing path and original printing parameters of the model to be printed;
the seam printing path determining module is used for determining a seam printing path according to the original printing path and the preset seam length;
the material extrusion amount per unit time determining module is used for determining the material extrusion amount per unit time of the seam printing path according to the original printing parameters;
the real-time material extrusion amount determining module is used for determining the real-time material extrusion amount in the seam printing path according to the material extrusion amount in unit time, and the real-time material extrusion amount gradually changes along with time;
the target printing path generating module is used for generating a target printing path according to the original printing path and the seam printing path;
the target printing parameter generating module is used for generating target printing parameters according to the original printing parameters and the real-time material extrusion amount;
and the printing module is used for printing the model to be printed according to the target printing parameters and the target printing path.
9. An electronic device, comprising:
one or more processors;
a storage device for storing one or more programs,
the one or at least one program when executed by the one or more processors causes the one or more processors to implement the 3D printing method of any one of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the 3D printing method according to any one of claims 1 to 7.
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| CN202110193790.XA CN112895464A (en) | 2021-02-20 | 2021-02-20 | 3D printing method and device, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115214143A (en) * | 2022-06-13 | 2022-10-21 | 深圳市纵维立方科技有限公司 | Model printing control method, device, equipment and computer readable medium |
| WO2023103709A1 (en) * | 2021-12-07 | 2023-06-15 | 深圳市创想三维科技股份有限公司 | 3d printing file generation method, apparatus, computer device, and storage medium |
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| CN107498851A (en) * | 2017-07-26 | 2017-12-22 | 江苏威宝仕科技有限公司 | A kind of seam hidden method of FDM3D printer models |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107498851A (en) * | 2017-07-26 | 2017-12-22 | 江苏威宝仕科技有限公司 | A kind of seam hidden method of FDM3D printer models |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023103709A1 (en) * | 2021-12-07 | 2023-06-15 | 深圳市创想三维科技股份有限公司 | 3d printing file generation method, apparatus, computer device, and storage medium |
| CN115214143A (en) * | 2022-06-13 | 2022-10-21 | 深圳市纵维立方科技有限公司 | Model printing control method, device, equipment and computer readable medium |
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Application publication date: 20210604 |