CN109049722B - Continuous collaborative fused deposition 3D printing system and method - Google Patents
Continuous collaborative fused deposition 3D printing system and method Download PDFInfo
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- CN109049722B CN109049722B CN201811194302.1A CN201811194302A CN109049722B CN 109049722 B CN109049722 B CN 109049722B CN 201811194302 A CN201811194302 A CN 201811194302A CN 109049722 B CN109049722 B CN 109049722B
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000010146 3D printing Methods 0.000 title claims abstract description 37
- 230000008021 deposition Effects 0.000 title claims abstract description 32
- 238000007639 printing Methods 0.000 claims abstract description 201
- 230000006870 function Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 230000000875 corresponding effect Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 5
- 230000002195 synergetic effect Effects 0.000 claims description 5
- 238000004381 surface treatment Methods 0.000 claims description 4
- 238000005457 optimization Methods 0.000 claims description 3
- 230000002079 cooperative effect Effects 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 229920000747 poly(lactic acid) Polymers 0.000 description 8
- 239000004626 polylactic acid Substances 0.000 description 8
- 238000000465 moulding Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000028571 Occupational disease Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- 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
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Abstract
The invention discloses a continuous collaborative fused deposition 3D printing system and a continuous collaborative fused deposition 3D printing method, wherein the continuous collaborative fused deposition 3D printing system comprises an upper computer and a distributed 3D printer group, the distributed 3D printer group comprises a plurality of 3D printers with different sizes, functions and division work, the upper computer is in charge of collaborative control, the 3D printers are in charge of fused deposition 3D printing and forming, each 3D printer in the distributed 3D printer group is connected with the upper computer, specific collaborative printing arrangement and control instructions are sent to the specific 3D printer from the upper computer, the 3D printer receives the specific instructions and executes printing tasks according to the instructions, printing precision, progress information and fault conditions are fed back to the upper computer in real time, the upper computer processes the information and sends the processed instructions to each printer, and the printers are circularly reciprocated to form continuous collaborative effects.
Description
Technical Field
The invention relates to a continuous collaborative fused deposition 3D printing system and method, which are used in the field of 3D printing (additive manufacturing).
Background
Fused deposition fabrication (Fused Deposition Modeling, FDM for short) is a typical intuitive, safe, environmentally friendly, and highly operable 3D printing technique. FDM3D printing adopts a heatable nozzle, so that semi-fluid material fluid is extruded according to a path controlled by layered data of a printing target, deposited and solidified at a designated position, and then the whole prototype (printing piece) is formed after layer-by-layer deposition and solidification. The FDM3D printing technology is well applied to the fields of education training, artistic creative, industrial product concept design and the like.
However, the FDM3D printing technology still has the following drawbacks: (1) The printing speed is low, the molding per hour is lower than 100 g, and the method is difficult to adapt to industrial production; (2) The printing size is small, and large objects with the size of more than 1.5 meters are difficult to print; (3) The molding efficiency is low, and mass customized production is difficult to finish.
In addition, the conventional molding method of the large object generally has two kinds of mechanical processing and mold molding. The machining time is long, and the waste is large; the mold molding is performed by casting or molding through a mold opening method, the mold opening period is long, the weight of the product is large, and complicated structures and detailed characteristics cannot be molded.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a continuous collaborative fused deposition (Continuous and Synergetic Fused Deposition Modeling, CSFDM for short) 3D printing system and a method. The invention consists of an upper computer responsible for cooperative control and a distributed 3D printer set responsible for fused deposition 3D printing forming, a specific cooperative printing arrangement and control instruction are sent from the upper computer to a specific 3D printer to execute a printing task, printing precision, progress information and fault conditions are fed back to the upper computer in real time, the upper computer processes the information and sends the processed instruction to each printer to form a continuous cooperative effect, large-scale articles can be rapidly printed in batches, and industrialized mass production of fused deposition 3D printing is realized.
The invention is realized by the following technical scheme:
the utility model provides a continuous collaborative fused deposition 3D print system, including host computer and distributed 3D printer group, distributed 3D printer group includes many different 3D printers of size, function and division of work, the host computer is responsible for cooperative control, 3D printer is responsible for fused deposition 3D printing shaping, every 3D printer in the distributed 3D printer group links to each other with the host computer, specific collaborative printing arrangement and control command send to specific 3D printer from the host computer, 3D printer receives specific command and carries out the print task according to the instruction, print precision, progress information, fault condition feeds back in real time to the host computer, the host computer processes information and sends each printer with the instruction after the processing, cyclic reciprocation, form continuous collaborative effect.
And the upper computer is a computer or an industrial control computer, and analyzes, simulates and optimizes the printing target and the printing process thereof to obtain printing target blocks and printing process arrangement which can be finished in a collaborative printing mode.
The continuous collaborative fused deposition 3D printing system comprises the following steps of: analyzing the performance requirements, the precision requirements, the material requirements, the surface quality, the detail characteristics and the minimum size of the whole printing target and each region; secondly, generating a printing code and a program, obtaining a printing process arrangement, and simulating a 3D printing process in an upper computer; thirdly, under the condition that the performance and quality requirements of the whole printing target and each area are met, the printing process in the second step is optimized by taking the minimum printing time as an optimization target; fourth, according to the optimizing result of the third step, the printing target is segmented, the principle of segmentation is that the number of segments is minimum, the total printing time is shortest, the printing quality of each segment meets the performance and quality requirements, and the printing process of each segment can be completed cooperatively in time; and fifthly, repeating the first step to the fourth step, and obtaining an optimal block scheme and an optimal printing process arrangement of each block according to the balance of quality and speed.
The continuous collaborative fused deposition 3D printing system is characterized in that the distributed 3D printing unit comprises a plurality of customized special 3D printers, the specification and the number of the 3D printers are determined according to the size of a printing target and the number of blocks, each block corresponds to one customized special 3D printer, the 3D printers are connected with an upper computer, and the plurality of 3D printers form the distributed 3D printing unit.
The continuous collaborative fused deposition 3D printing system comprises a special printer for curved surface and detail feature parts, a special printer for large-size parts and a special printer for long and narrow parts, wherein the special printer for the curved surface and detail feature parts adopts a high-precision low-speed 3D printer, the special printer for the large-size parts adopts a large-size high-speed 3D printer, and the special printer for the long and narrow parts adopts a large-size high-speed 3D printer.
And the number of 3D printers contained in the distributed 3D printer group is less than or equal to the number of blocks of a printing target, the upper computer stores data files corresponding to printing parameters and performances of each printer, the corresponding number of printers is selected according to the number of the blocks, and the corresponding printer specification and characteristics are selected according to the characteristics of the blocks.
And the upper computer performs data slicing on each block of the printing target, sets a printing path, a printing speed, a printing layer thickness and a printing temperature to form respective specific printing arrangement and control instructions of each block, the specific collaborative printing arrangement and control instructions are sent to a specific 3D printer from the upper computer, and the 3D printer receives the specific instructions and executes printing tasks according to the instructions.
And the printing precision, the progress information and the fault condition of the distributed printers are fed back to the upper computer in real time, and the upper computer processes the information and sends the processed instructions to each printer to be circularly reciprocated to form a continuous synergistic effect.
A fused deposition 3D printing method of continuous synergy implemented using any of the systems, having the steps of:
the method comprises the steps that firstly, an upper computer analyzes, simulates and blocks a printing target, a special 3D printer is customized according to the blocks of the printing target, the specification and the number of the 3D printers are determined according to the size and the number of the blocks of the printing target, each block corresponds to a special 3D printer, and the 3D printers are connected with the upper computer;
secondly, the upper computer carries out data processing on the blocks of the printing target to form a printing instruction: the upper computer performs data slicing on each block of the printing target, and plans and sets printing parameters such as a printing path, a printing speed, a printing layer thickness, a printing temperature and the like to form specific printing arrangement and control instructions of each block;
third, continuously executing the printing tasks in a cooperative way: a specific collaborative printing arrangement and control instruction is sent from an upper computer to a specific 3D printer, and the 3D printer receives the specific instruction and executes a printing task according to the instruction;
fourth, post-treatment: and carrying out surface treatment on each printed block, and combining or assembling to obtain a complete printed object.
In the first step, the upper computer segments the printing target, wherein the segments comprise blocks with more curved surfaces and detail characteristics, blocks with larger volumes and long and narrow blocks, and 3D printing is performed by adopting a special printer for the curved surfaces and detail characteristics, a special printer for the large-volume parts and a special printer for the narrow and narrow parts respectively.
The continuous collaborative fused deposition 3D printing system and method provided by the invention have the following advantages:
(1) The distributed printer group is formed by a plurality of customized special printers, the material melting and conveying speed in unit time is greatly improved, the bottleneck of slow material melting and conveying of a single printer is broken through, and the printing forming efficiency is greatly improved;
(2) The upper computer uniformly processes data and arranges a printing process for each block of the printing target, so that independent operation of each printer is avoided, the operation time is greatly saved, and the efficiency is improved;
(3) The cooperative control of the upper computer enables the distributed printer group to continuously and cooperatively operate, so that the printing and forming of a large-scale printing target are finished together, the printing and forming are repeated circularly, the continuous production is realized, the empty position of the printer is avoided, and the use frequency and the use efficiency of equipment are greatly improved;
(4) The printing precision, the progress information and the fault condition of the distributed printer are fed back to the upper computer in real time, the upper computer processes the information in real time and sends the processed instructions to each printer to reciprocate circularly, a continuous synergistic effect is formed, the problems of low printing precision and low speed of fused deposition 3D are well solved, the method is very suitable for mass production of large-scale objects, and the method has a wide application prospect.
Drawings
FIG. 1 is a schematic diagram of a fused deposition 3D printing system with continuous coordination;
in the figure: 1. the upper computer, 2, printing the target, 3-7, customizing a special distributed 3D printer group for the printing target, 8, printing the target block;
Detailed Description
The present invention will be described in detail with reference to specific examples.
As shown in fig. 1, the continuous collaborative fused deposition 3D printing system comprises an upper computer and a distributed 3D printer set, wherein the distributed 3D printer set comprises a plurality of 3D printers with different sizes, functions and division, the upper computer is in charge of collaborative control, the 3D printers are in charge of fused deposition 3D printing forming, each 3D printer in the distributed 3D printer set is connected with the upper computer, specific collaborative printing arrangement and control instructions are sent to the specific 3D printer from the upper computer, the 3D printer receives the specific instructions and executes printing tasks according to the instructions, printing precision, progress information and fault conditions are fed back to the upper computer in real time, the upper computer processes the information and sends the processed instructions to each printer, and the upper computer circularly reciprocates to form continuous collaborative effects.
The distributed 3D printer set comprises a special printer for curved surface and detail feature parts, a special printer for large-volume parts and a special printer for long and narrow parts, wherein the special printer for the curved surface and detail feature parts adopts a high-precision low-speed 3D printer, the special printer for the large-volume parts adopts a large-volume high-speed 3D printer, and the special printer for the long and narrow parts adopts a large-size high-speed 3D printer;
the upper computer is a computer or an industrial control computer, and analyzes, simulates and optimizes the printing target and the printing process thereof to obtain printing target blocks and printing process arrangement which can be finished in a collaborative manner.
The method for analyzing, simulating and optimizing the printing target and the printing process thereof comprises the following steps: analyzing the performance requirements, the precision requirements, the material requirements, the surface quality, the detail characteristics and the minimum size of the whole printing target and each region; secondly, generating a printing code and a program, obtaining a printing process arrangement, and simulating a 3D printing process in an upper computer; thirdly, under the condition that the performance and quality requirements of the whole printing target and each area are met, the printing process in the second step is optimized by taking the minimum printing time as an optimization target; fourth, according to the optimizing result of the third step, the printing target is segmented, the principle of segmentation is that the number of segments is minimum, the total printing time is shortest, the printing quality of each segment meets the performance and quality requirements, and the printing process of each segment can be completed cooperatively in time; and fifthly, repeating the first step to the fourth step, and obtaining an optimal block scheme and an optimal printing process arrangement of each block according to the balance of quality and speed.
The distributed 3D printer unit is composed of a plurality of customized special 3D printers, the specification and the number of the 3D printers are determined according to the size of a printing target and the number of the blocks, each block corresponds to one customized special 3D printer, the 3D printer is connected with an upper computer, and the plurality of 3D printers form the distributed 3D printer unit.
The number of the 3D printers contained in the distributed 3D printer group is less than or equal to the number of the blocks of the printing target, the upper computer stores data files corresponding to printing parameters and performances of each printer, the corresponding number of the printers is selected according to the number of the blocks, and the corresponding printer specification and characteristics are selected according to the characteristics of the blocks.
The upper computer performs data slicing on each block of the printing target, plans and sets printing parameters such as a printing path, a printing speed, a printing layer thickness, a printing temperature and the like, forms specific printing arrangement and control instructions of each block, sends the specific collaborative printing arrangement and control instructions to the specific 3D printer from the upper computer, and the 3D printer receives the specific instructions and executes printing tasks according to the instructions.
The printing precision, the progress information and the fault condition of the distributed printer are fed back to the upper computer in real time, the upper computer processes the information and sends the processed instructions to each printer, and the printers are cycled to form a continuous synergistic effect.
The invention discloses a continuous collaborative fused deposition 3D printing method realized by adopting the device, which comprises the following specific processes: the method comprises the steps that firstly, an upper computer analyzes, simulates and blocks a printing target, 3D printers special for block customization of the printing target are determined according to the size and the number of the printing target, each block corresponds to one 3D printer special for customization, and the 3D printers are connected with the upper computer to form a distributed printer set special for the printing target; secondly, the upper computer carries out data processing on the blocks of the printing target to form a printing instruction: the upper computer carries out data slicing on each block of the printing target, sets printing parameters such as a printing path, a printing speed, a printing layer thickness, a printing temperature and the like, and forms specific printing arrangement and control instructions of each block; third, continuously executing the printing tasks in a cooperative way: a specific collaborative printing arrangement and control instruction is sent from an upper computer to a specific 3D printer, and the 3D printer receives the specific instruction and executes a printing task according to the instruction; fourth, post-treatment: and carrying out surface treatment on each printed block, and combining or assembling to obtain a complete printed object (printing target).
The upper computer segments the printing target, wherein the type of the segments comprises a block with more curved surface and detail characteristics, a block with larger volume and a long and narrow block, and 3D printing is performed by adopting a printer special for the curved surface and detail characteristics, a printer special for the large-volume part and a printer special for the long and narrow part respectively.
Examples:
the print target of this embodiment is a clothing model. The printing material adopts a green and environment-friendly polylactic acid material extracted from plant resources as the printing material, the upper computer adopts an i7 industrial personal computer (specifically configured as i7-7700, 3.6G with four cores of Kui, 64G with internal memory and 2TB with a hard disk and an independent display card), the upper computer analyzes, simulates and optimizes a clothing model, blocks the clothing model into 8 blocks (head, body, left arm, right arm, left palm, right palm, left leg and right leg), the type and grid structure of the hollow structure in each block are set to be a cross grid structure, 6 special 3D printers are customized according to the respective requirements of complexity, layer thickness, precision and the like to form a printing unit, and the 6 special 3D printers are all connected with the upper computer. The upper computer performs data slicing on each block of the model, sets printing parameters such as a printing path, a printing speed, a printing layer thickness, a printing temperature and the like, and forms specific printing arrangement and control instructions of each block. The main printer parameters, slicing and printing process parameters are as follows:
1 printer special for head, forming space length, width and height dimensions: 240 (L). Times.200 (W). Times.250 (H), the diameter of the nozzle is 0.2mm, and since the five sense organs of the head need to be highlighted, the curved surface of the head is complex and various, and the detail features are more, PLA printing with the line diameter of 1.75mm, the thickness of the layer is 0.1mm, the wall thickness is 0.8mm, the filling density is 8%, the printing speed of the shell is 40mm/s, the grid printing speed is 90mm/s, and the printing speed of the inner wall is 60mm/s;
1 printer special for body, forming space length, width and height dimensions: 450 (L). Times.400 (W). Times.700 (H), the diameter of the nozzle is 1.0mm, and the whole body is large, the shape is relatively simple, and the detail features are few, so that PLA printing with the wire diameter of 3mm, the thickness of the layer is 0.6mm, the wall thickness is 1.6mm, the filling density is 3%, the printing speed of the shell is 60mm/s, the printing speed of the grid is 100mm/s, and the printing speed of the inner wall is 90mm/s are adopted;
1 special printer of arm, shaping space length, width, high size: 300 (L). Times.200 (W). Times.650 (H), nozzle diameter 0.6mm, because arm is longer, curved surface and detail feature are less, therefore, adopt PLA print of line diameter 1.75mm, layer thickness 0.3mm, wall thickness 1.2mm, fill density 6%, the shell prints the speed 50mm/s, grid prints the speed 90mm/s, the inner wall prints the speed 80mm/s, print and finish the left arm, print the right arm next;
1 printer special for palm, forming space length, width and high dimension: 180 (L). Times.160 (W). Times.250 (H), the diameter of the nozzle is 0.1mm, and the palm is small in volume, but the curved surface is complex and various, and the detail features are more, so that PLA printing with the line diameter of 1.75mm, the thickness of the layer of 0.2mm, the wall thickness of 1.0mm, the filling density of 10 percent, the printing speed of the shell of 30mm/s, the grid printing speed of 60mm/s and the printing speed of the inner wall of 50mm/s are adopted, the left palm is printed, and then the right palm is printed;
1 printer special for left leg, forming space length, width and height dimensions: 630 (L). Times.530 (W). Times.1100 (H), nozzle diameter 0.8mm, because leg portion is long, curved surface and detail features are relatively few, therefore, PLA printing with 3mm line diameter, 0.4mm layer thickness, 1.2mm wall thickness, filling density 5%, casing printing speed 60mm/s, grid printing speed 90mm/s, inner wall printing speed 80mm/s is adopted;
1 right leg special printer, shaping space length, width, high size: 630 (L). Times.530 (W). Times.1100 (H), nozzle diameter 0.8mm, because leg portion is long, curved surface and detail features are relatively few, therefore, PLA printing with 3mm line diameter, 0.4mm layer thickness, 1.2mm wall thickness, filling density 5%, casing printing speed 60mm/s, grid printing speed 90mm/s, inner wall printing speed 80mm/s is adopted;
as described above, a specific collaborative print arrangement and control instruction is transmitted from the host computer to a specific 3D printer, which receives the specific instruction and executes a print job in accordance with the instruction. And carrying out surface treatment on each block subjected to collaborative printing, and combining or assembling to obtain a complete model, wherein the complete model is circularly reciprocated, so that the clothing model can be produced in a large scale with high efficiency.
The invention provides a continuous collaborative fused deposition (CSFDM) 3D printing technology: the method does not need a die, and can be rapidly suitable for model production of various different forms of structures; the large-scale clothing model with the length of more than 1.8 meters and even giant objects with the length of more than 3 meters required in film shooting can be printed; the face and hand features of the model are fine, lifelike, can be used for manufacturing particularly complex structures, and the minimum feature size can reach 0.1mm; the weight is light, and the structure reinforced by adopting the thin-wall hollow and the internal grid is more than 50% lighter than that of the traditional model; the printing speed is high, one set of CSFDM equipment in the embodiment can form more than 500 g per hour, which is higher than the model production speed of one production line of traditional molding, and a plurality of sets of CSFDM equipment can run simultaneously faster; the printing is performed by adopting the green and environment-friendly polylactic acid material, so that occupational diseases and environmental protection problems are avoided; continuous collaborative mass production of models can be realized, and the production efficiency is high.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (5)
1. A continuous collaborative fused deposition 3D printing system for mass production of large objects, characterized by: the system comprises an upper computer and a distributed 3D printer unit, wherein the distributed 3D printer unit comprises a plurality of 3D printers with different sizes, functions and division, the upper computer is in charge of cooperative control, the 3D printers are in charge of fused deposition 3D printing forming, each 3D printer in the distributed 3D printer unit is connected with the upper computer, a specific cooperative printing arrangement and control instruction is sent to the specific 3D printer from the upper computer, the 3D printer receives the specific instruction and executes a printing task according to the instruction, printing precision, progress information and fault conditions are fed back to the upper computer in real time, and the upper computer processes the information and sends the processed instruction to each printer to perform cyclic reciprocation to form a continuous cooperative effect;
the upper computer is a computer or an industrial control computer, and analyzes, simulates and optimizes the printing target and the printing process thereof to obtain printing target blocks and printing process arrangement which can be finished in a collaborative manner;
the method for analyzing, simulating and optimizing the printing target and the printing process thereof comprises the following steps: analyzing the performance requirements, the precision requirements, the material requirements, the surface quality, the detail characteristics and the minimum size of the whole printing target and each region; secondly, generating a printing code and a program, obtaining a printing process arrangement, and simulating a 3D printing process in an upper computer; thirdly, under the condition that the performance and quality requirements of the whole printing target and each area are met, the printing process in the second step is optimized by taking the minimum printing time as an optimization target; fourth, according to the optimizing result of the third step, the printing target is segmented, the principle of segmentation is that the number of segments is minimum, the total printing time is shortest, the printing quality of each segment meets the performance and quality requirements, and the printing process of each segment can be completed cooperatively in time; fifth, repeating the first to fourth steps to obtain an optimal block scheme and an optimal printing process arrangement of each block according to the balance of quality and speed;
the upper computer performs data slicing on each block of the printing target, sets a printing path, a printing speed, a printing layer thickness and a printing temperature, forms specific printing arrangement and control instructions of each block, sends the specific collaborative printing arrangement and control instructions to a specific 3D printer from the upper computer, and the 3D printer receives the specific instructions and executes printing tasks according to the instructions;
the distributed 3D printer unit comprises a plurality of customized special 3D printers, the specification and the number of the 3D printers are determined according to the size of a printing target and the number of the blocks, each block corresponds to one customized special 3D printer, the 3D printers are connected with an upper computer, and the plurality of 3D printers form the distributed 3D printer unit;
the distributed 3D printer set comprises a special printer for curved surface and detail feature parts, a special printer for large-size parts and a special printer for long and narrow parts, wherein the special printer for the curved surface and detail feature parts adopts a high-precision low-speed 3D printer, the special printer for the large-size parts adopts a large-size high-speed 3D printer.
2. The continuous collaborative fused deposition 3D printing system of claim 1, wherein: the number of the 3D printers contained in the distributed 3D printer group is less than or equal to the number of the blocks of the printing target, the upper computer stores data files corresponding to printing parameters and performances of each printer, the corresponding number of the printers is selected according to the number of the blocks, and the corresponding printer specification and characteristics are selected according to the characteristics of the blocks.
3. The continuous collaborative fused deposition 3D printing system of claim 1, wherein: the printing precision, the progress information and the fault condition of the distributed printer are fed back to the upper computer in real time, the upper computer processes the information and sends the processed instructions to each printer, and the printers are cycled to form a continuous synergistic effect.
4. A fused deposition 3D printing method implemented with a continuous co-operation according to any of claims 1-3, characterized by the steps of:
the method comprises the steps that firstly, an upper computer analyzes, simulates and blocks a printing target, a special 3D printer is customized according to the blocks of the printing target, the specification and the number of the 3D printers are determined according to the size and the number of the blocks of the printing target, each block corresponds to a special 3D printer, and the 3D printers are connected with the upper computer;
secondly, the upper computer carries out data processing on the blocks of the printing target to form a printing instruction: the upper computer performs data slicing on each block of the printing target, and plans and sets printing parameters such as a printing path, a printing speed, a printing layer thickness, a printing temperature and the like to form specific printing arrangement and control instructions of each block;
third, continuously executing the printing tasks in a cooperative way: a specific collaborative printing arrangement and control instruction is sent from an upper computer to a specific 3D printer, and the 3D printer receives the specific instruction and executes a printing task according to the instruction;
fourth, post-treatment: and carrying out surface treatment on each printed block, and combining or assembling to obtain a complete printed object.
5. The 3D printing method according to claim 4, wherein in the first step, the upper computer performs the segmentation of the printing target, the segmentation type includes a block with more curved surface and detail features, a block with larger volume and a long and narrow block, and the 3D printing is performed by using a printer dedicated to the curved surface and detail features, a printer dedicated to the large volume part and a printer dedicated to the narrow and narrow part, respectively.
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