CN106363906A - Multi-material digital light processing (DLP) three-dimensional printing method and printing equipment thereof - Google Patents
Multi-material digital light processing (DLP) three-dimensional printing method and printing equipment thereof Download PDFInfo
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- CN106363906A CN106363906A CN201610844730.9A CN201610844730A CN106363906A CN 106363906 A CN106363906 A CN 106363906A CN 201610844730 A CN201610844730 A CN 201610844730A CN 106363906 A CN106363906 A CN 106363906A
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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
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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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
- B33Y70/00—Materials specially adapted for additive manufacturing
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
The invention provides a multi-material digital light processing (DLP) three-dimensional printing method and printing equipment thereof. The core of the multi-material DLP three-dimensional printing method lies in the multi-trough switching technique, that is, two or more resin troughs containing different kinds of photosensitive resin are arranged below a model building table, and the resin troughs are installed on a horizontal motion mechanism controlled by a motor. Each resin trough can be directly moved to the position below the building table when needed. After printing of one material is completed, the resin trough containing another material is horizontally moved to the position below the building table, the material replaces the original material to continue to receive irradiation of a projector, and thus printing operation can be continued. The overall arrangement of the multi-material DLP three-dimensional printer is conducted according to a lower exposure type three-dimensional printing system, the single trough structure and the motion mode of existing DLP three-dimensional printing equipment are converted into a multi-trough structure, printing of various resin materials can be conducted so that individual requirements of models can be met, and accordingly the application range of the DLP three-dimensional printing technology is broadened.
Description
Technical field
The present invention relates to a kind of many materials dlp 3 D-printing method and the printing device based on the method, this printing device
Including frame for movement assembly, control system and dlp optical projection system.The invention belongs to rapid three dimensional printing forming manufacture (quick increasing
Material manufacturing technology) field.
Background technology
3 D-printing is rapid shaping (rapidprototyping, rp) technology is a kind of from 90 years late 1980s
The advanced manufacturing technology that generation just grows up.It is a kind of increases material manufacturing technology based on discrete dynamics models thought, a kind of " from lower
On " material addition manufacture method, that is, pass through computer technology, the three-dimensional digital model according to part successively connects material tired
Plus, thus producing entity component.Manufacture process is reduced to a series of simple two dimension synusia by complicated Three-dimension process
Processing, because the difficulty of processing of two-dimentional synusia is substantially unrelated with the complexity of material object parts structure, therefore greatly reduces zero
The difficulty of processing of part entity is such that it is able to complete the different 3D solid mould of shape and structure with a kind of unification, automatic method
Type.At present, three-dimensional printing technology has been applied in the fields such as industry manufacture, medical treatment, education and Art Design.
From being born so far, the development through the more than ten years has occurred in that multiple different moulding processs to three-dimensional printing technology, this
Wherein Introduction To Stereolithography is to develop a kind of earliest, the most ripe at this stage, most widely used three-dimensional printing technology.Should
With photosensitive resin liquid as raw material, the light sensitive characteristic of resin makes material after the light irradiation by special wave band to technology, meeting
Occur polyreaction that solidification occurs.Photocuring technology typically passes through vibration mirror scanning technology or mask platemaking technology, and that is, laser is rapid-result soon
Type technology dough-making powder exposure rapid shaping technique controls light area, makes resin polymerizing curable in controlled light area, passes through
Three-dimensional entity model is generated after successively solidification superposition.
With respect to rapid laser-shaping technique, face exposes the speed that rapid shaping technique can obtain faster molding, eliminates
One accurate x-y control subsystem, device structure and technical process simplerization, not only reduce hardware
This, and stability is high.
Face exposure Rapid Prototyping technique based on digital optical processing (dlp) technology is that the making in recent years developing rapidly is little
The process for photocuring of the flood liquid level exposure of size parts, after computer software layering, generating can be anti-for the cad model of part
Reflect the bmp picture data files of aspect shape, dynamic view maker is driven by this document, equally distributed area source is irradiated to
After dynamic view generator, focus on the generation dynamic mask of figure on liquid level through light path system, can one-step solidification flood after exposure
Part；After the completion of each layer of resin solidification, metal supporting plate can rise the distance of a thickness, and new liquid resin is due to capillary
Effect can automatically flow in resin storage tank and the space of cured resin bed, to form new layer to be solidified；Then successively add up into
Row solidification, finally produces part.
At present, the dlp three-dimensional printer on market mostly is lower exposure type 3 D-printing system, and can only use a kind of light
Quick resin material carries out print job it is impossible to be printed using multiple photosensitive resin materials simultaneously, and this seriously constrains this skill
The popularization and application of art.
Content of the invention
For the problems referred to above, the first object of the present invention is that offer is a kind of multiple based on can printing of dlp technology simultaneously
The 3 D-printing method of photosensitive resin material.
The second object of the present invention is to provide a kind of dlp three-dimensional printer based on above-mentioned 3 D-printing method.
In order to realize the first object of the present invention, the invention provides a kind of many materials dlp 3 D-printing method, the method
Core be many hoppers conversion process, that is, below data mapping platform, be provided with two and be loaded with different photosensitive resins above
Resin storage tank, these resin storage tanks are arranged on one by the horicontal motion mechanism of motor control.The model forming of this technique adopts
Mode from bottom to top, that is, model is to be printed on building platform in the way of turning upside down.Each resin storage tank can
Enough lower sections moving directly to data mapping platform when needing, when a kind of file printing completes, equipped with another kind of material
Resin storage tank will move to the lower section constructing platform, take over previous material and continue to accept the irradiation of projector thus allowing print job
Proceed.
The many materials dlp 3 D-printing method providing according to the present invention, many hoppers conversion process of the method is applied to not
With many file printings operation between layer by layer, it is also applied for same interior layer by layer many file printings operation, to meet the personalized need of model
Ask.
For realizing the second object of the present invention, the present invention adopts following technological means, to realize many materials proposed by the present invention
Material dlp 3 D-printing method.
A kind of many materials dlp three-dimensional printer, this printer includes vertically movable platform, data mapping platform, resin storage tank, water
Flat motion and dlp projection etc..Printer integral layout is carried out according to lower exposure type 3 D-printing system.Detachable model structure
Build platform and be arranged on a platform lower end that can be vertically movable.Below data mapping platform, several are set and contain photosensitive resin
Resin storage tank to carry out the operation of many file printings, depending on the quantity of resin storage tank can be according to concrete model printing demand, these tree
Fat groove is arranged on a horicontal motion mechanism, and this horicontal motion mechanism is realized accurately walking under the control of motor.Dlp throws
Shadow equipment is arranged on the lower section of horicontal motion mechanism.
The many materials dlp three-dimensional printer providing according to the present invention, by the single hopper knot of existing dlp 3 D-printing equipment
Structure and motion mode are changed into multiple bin designs, can carry out the printing of various kinds of resin according to model requirements simultaneously, to meet
The individual demand of model, thus widen the application of dlp three-dimensional printing technology.
Brief description
Fig. 1 is a kind of preferred embodiment front view of the many materials dlp three-dimensional printer according to the present invention
Fig. 2 is that one kind multiple hopper horicontal motion mechanisms of splendid attire of the many materials dlp three-dimensional printer according to the present invention show
It is intended to
Fig. 3 is that the another kind of the many materials dlp three-dimensional printer according to the present invention contains multiple hopper horicontal motion mechanisms
Schematic diagram
Fig. 4 is same interior layer by layer many file printings job model of the many materials dlp 3 D-printing method according to the present invention
Decomposing schematic representation
Specific embodiment
The core of the present invention is a kind of many materials dlp 3 D-printing method and its printing device, in order that the phase of this area
Close technical staff and be better understood from technical scheme, with reference to specific embodiment, the present invention is done further detailed
Explanation.
With reference to Fig. 1, Fig. 1 is that a kind of preferred embodiment of many materials dlp three-dimensional printer faces structure chart.Due to the present invention
The many materials dlp three-dimensional printer proposing can carry out two kinds and above photosensitive resin material print job, concrete resin storage tank peace
Dress quantity can be adjusted according to the needs that realistic model prints.The present embodiment illustrates taking three resin storage tanks as a example.
A kind of many materials dlp three-dimensional printer, this printer includes vertically movable platform 1, data mapping platform 2, the first tree
Fat groove 4, the second resin storage tank 5, the 3rd resin storage tank 6, resin storage tank installing rack 7, horicontal motion mechanism 8 and dlp projector equipment 9 etc..
The integral layout of this printer is carried out according to lower exposure type 3 D-printing system, and data mapping platform 2 is detachable knot
Structure, data mapping platform 2 is arranged on the lower end of a vertically movable platform 1 that can carry out vertical motion.
Model 3 to be made is arranged on the lower surface of data mapping platform 2, and model 3 carries out beating in the way of from bottom to top
Print.
Below data mapping platform 2, the resin storage tank arranging several splendid attire photosensitive resins is to carry out many file printings work
Industry, depending on the quantity of resin storage tank can be according to concrete model printing demand, when the quantity of resin storage tank is three, that is, the first resin storage tank 4,
Second resin storage tank 5, the 3rd resin storage tank 6.
First resin storage tank 4, the second resin storage tank 5, the 3rd resin storage tank 6 are installed on resin storage tank installing rack 7.
Resin storage tank installing rack 7 is fixedly mounted on a horicontal motion mechanism 8, and this horicontal motion mechanism 8 is in the control of motor
The lower realization of system accurately walks.
Dlp projector equipment 9 is arranged on the lower section of horicontal motion mechanism 8.
With reference to Fig. 2 and Fig. 3, Fig. 2 and Fig. 3 illustrates the version of two kinds of resin storage tank installing racks.
Fig. 2 illustrates that a kind of version of resin storage tank installing rack, and this version profile is rectangular.Three resins
Groove, that is, the first resin storage tank 4, the second resin storage tank 5, the 3rd resin storage tank 6 are uniformly equidistantly mounted on the first resin storage tank installing rack 7.The
One resin storage tank installing rack 7 is fixedly mounted on horicontal motion mechanism 8.In the version of the resin storage tank installing rack that Fig. 2 illustrates,
Horicontal motion mechanism 8 is reciprocating under the control of motor, realizes the accurate replacement of three resin storage tanks.
Fig. 3 illustrates that another kind of version of resin storage tank installing rack, and this version profile is in annular.Three trees
Fat groove, i.e. the centre-to-centre spacing such as the first resin storage tank 4, the second resin storage tank 5, the 3rd resin storage tank 6 and wait angular distance to be arranged on the second resin storage tank
On installing rack 10.Second resin storage tank installing rack 10 is fixedly mounted on horicontal motion mechanism 8.The resin storage tank illustrated in Fig. 3 is installed
In the version of frame, horicontal motion mechanism 8 rotates around center under the control of motor, realizes three resin storage tanks
Accurately substitute.
With reference to Fig. 1, the core that many materials dlp three-dimensional printer realizes many material three-dimensionals printings is many hoppers conversion process,
This technique is the direct embodiment of many materials dlp 3 D-printing method.When executing many material three-dimensionals Method of printing, it is provided with first
Resin storage tank 4, the second resin storage tank 5, the first resin storage tank installing rack 7 meeting root under the drive of horicontal motion mechanism 8 of the 3rd resin storage tank 6
Carry out horizontal movement according to programmed instruction, each resin storage tank, that is, the first resin storage tank 4, the second resin storage tank 5, the 3rd resin storage tank 6 can
The lower section of data mapping platform 2 is moved directly to when needing.Many materials dlp three-dimensional printer receives print command, contains
Equipped with the first resin material the first resin storage tank 4 can move to data mapping platform 2 lower section complete this layer print, afterwards, contain
The second resin storage tank 5 equipped with second material or be loaded with the 3rd resin storage tank 6 of the third material and will move to structure platform
Lower section, take over the first material continue to accept dlp projector equipment 9 irradiation thus complete next layer print, make print job
Proceed.Many materials dlp 3 D-printing chance selects respective material to be printed according to the setting cutting layer file, to meet not
Use the requirement of different materials with the number of plies.
A kind of many materials dlp 3 D-printing method that the present invention provides, many hoppers conversion process of the method is applied to not
With many file printings operation between layer by layer, it is also applied for same interior layer by layer many file printings operation, the personalization of model can be met
Demand.The many materials of different layers interlayer refer to that model is cut a certain layer in layer file and is made up of homogenous material, and adjoin up and down with this layer
Adjacent layer is then to be made up of different materials.During different layers interlayer many file printings operation, each layer only needs to corresponding resin
Material irradiates once through dlp projector equipment.
Same interior layer by layer many materials refer to that model is cut a certain layer in layer file and is made up of multiple material.Same interior layer by layer many
During file printing operation, each layer needs to determine the photograph of dlp projector equipment 9 according to the concrete material category quantity constituting this layer
Penetrate number of times.For example, a certain layer that model is cut in layer file is made up of three kinds of materials, then this layer needs by corresponding in manufacturing process
Three kinds of resin materials irradiate through dlp projector equipment and just can complete the printing of this layer for three times.
Model 3 in the print procedure illustrated with reference to Fig. 1 and Fig. 4, Fig. 1 is to be made up of three kinds of resin materials, these three trees
Fat material be contained in respectively the first resin storage tank 4, the second resin storage tank 5, in the 3rd resin storage tank 6.Fig. 4 illustrates that layer literary composition cut by model 3
The material of a certain layer in part is constituted, and the wherein first resin material 12 is contained in the first resin storage tank 4, and the second resin material 13 is contained
It is contained in the second resin storage tank 5, the 3rd resin material 14 is contained in the 3rd resin storage tank 6.
Because Fig. 4 illustrates that model 3 is cut a certain layer in layer file and is made up of three kinds of materials, then after processing
File need dlp projector equipment 9 projection illumination just can complete the print job of this layer for three times.When needs projection is by the first resin
During the figure that material 12 is constituted, the first resin storage tank 4 equipped with the first resin material 12 can move to below data mapping platform 2, warp
Cross dlp projector equipment 9 projection illumination and once complete this graphic printing.Then equipped with the second resin storage tank 5 of the second resin material 13
The lower section of data mapping platform 2 will be moved to, take over the first resin storage tank 4 and accept dlp projector equipment 9 projection illumination once printing this
The figure being made up of the second resin material 13 in layer.Finally, the 3rd resin storage tank 6 equipped with the 3rd resin material 14 moves to model
Construct the lower section of platform 2, take over the second resin storage tank 5 and accept dlp projector equipment 9 projection illumination once printing in this layer by the 3rd resin
The figure that material 14 is constituted.So far, this layer of printing finishes, and data mapping platform 2 rises a floor height, carries out beating of next sublevel
Print, process is ibid.
Above detailed Jie is carried out to a kind of many materials dlp 3 D-printing method provided by the present invention and its printing device
Continue.Apply instantiation in the present invention principle of the present invention and embodiment are set forth, the explanation of above example
It is only intended to help and understand the method for the present invention and its core concept.It should be pointed out that the common skill for the art
For art personnel, under the premise without departing from the principles of the invention, the present invention can also be carried out with some improvement and modify, these change
Enter and modify in the protection domain also falling into the claims in the present invention.
Claims (8)
1. a kind of many materials dlp 3 D-printing method it is characterised in that: the core of the method is many hoppers conversion process, that is, exist
Below data mapping platform, the resin storage tank that is provided with two and is loaded with different photosensitive resins above, these resin storage tanks are arranged on one
Individual by the horicontal motion mechanism of motor control；By the way of from bottom to top, that is, model is above to the model forming of this technique
Lower reverse mode is printed on building platform；Each resin storage tank can move directly to model when needing
Construct the lower section of platform, when a kind of file printing completes, the resin storage tank equipped with another kind of material will move to the lower section constructing platform,
Take over previous material and continue to accept the irradiation of projector thus allowing print job to proceed.
2. a kind of many materials dlp 3 D-printing method according to claim 1 it is characterised in that:, many hoppers of the method
Conversion process is applied to different layers interlayer many file printings operation, is also applied for same interior layer by layer many file printings operation, with full
The individual demand of sufficient model.
3. a kind of many materials dlp three-dimensional printer of being carried out using claim 1 methods described it is characterised in that: this printer
Including vertically movable platform (1), data mapping platform (2), the first resin storage tank (4), the second resin storage tank (5), the 3rd resin storage tank (6),
First resin storage tank installing rack (7), horicontal motion mechanism (8) and dlp projector equipment (9)；
The integral layout of this printer is carried out according to lower exposure type 3 D-printing system, and data mapping platform (2) is demountable structure,
Data mapping platform (2) is arranged on the lower end of a vertically movable platform (1) that can carry out vertical motion；
Model (3) to be made is arranged on the lower surface of data mapping platform (2), and model (3) is carried out in the way of from bottom to top
Print；
Below data mapping platform (2), arrange several contain photosensitive resins resin storage tank to carry out the operation of many file printings,
Depending on the quantity of resin storage tank can be according to concrete model printing demand, when the quantity of resin storage tank is three, that is, the first resin storage tank (4),
Second resin storage tank (5), the 3rd resin storage tank (6)；
First resin storage tank (4), the second resin storage tank (5), the 3rd resin storage tank (6) are installed on resin storage tank installing rack 7；
First resin storage tank installing rack (7) is fixedly mounted on a horicontal motion mechanism (8), and this horicontal motion mechanism (8) is in electricity
Realization under the control of machine accurately walks；
Dlp projector equipment (9) is arranged on the lower section of horicontal motion mechanism (8).
4. a kind of many materials dlp three-dimensional printer according to claim 3 it is characterised in that: the one of resin storage tank installing rack
Plant version, this version profile is rectangular；Three resin storage tanks, that is, the first resin storage tank (4), the second resin storage tank (5), the 3rd
Resin storage tank (6) is uniformly equidistantly mounted on the first resin storage tank installing rack (7)；First resin storage tank installing rack (7) is fixedly mounted on water
On flat motion (8)；Horicontal motion mechanism (8) is reciprocating under the control of motor, realizes the accurate of three resin storage tanks
Substitute.
5. a kind of many materials dlp three-dimensional printer according to claim 3 it is characterised in that: resin storage tank installing rack another
A kind of version, this version profile is in annular；Three resin storage tanks, that is, the first resin storage tank (4), the second resin storage tank (5),
Centre-to-centre spacing such as the 3rd resin storage tank (6) and wait angular distance to be arranged on the second resin storage tank installing rack 10；Second resin storage tank installing rack
(10) it is fixedly mounted on horicontal motion mechanism (8)；Horicontal motion mechanism (8) makees rotation fortune around center under the control of motor
Dynamic, realize the accurate replacement of three resin storage tanks.
6. a kind of many materials dlp three-dimensional printer according to claim 3 it is characterised in that: many materials dlp 3 D-printing
The core that many material three-dimensionals printings realized by machine is many hoppers conversion process, and this technique is the straight of many materials dlp 3 D-printing method
Junctor is existing；When executing many material three-dimensionals Method of printing, the first resin storage tank (4), the second resin storage tank (5), the 3rd resin are installed
First resin storage tank installing rack (7) of groove (6) can carry out level fortune according to programmed instruction under the drive of horicontal motion mechanism (8)
Dynamic, each resin storage tank, that is, the first resin storage tank (4), the second resin storage tank (5), the 3rd resin storage tank (6) can be straight when needing
Connect the lower section moving to data mapping platform (2)；Many materials dlp three-dimensional printer receives print command, is loaded with the first tree
The lower section that first resin storage tank (4) of fat material can move to data mapping platform (2) completes this layer of printing, afterwards, is loaded with second
The second resin storage tank (5) planting material or the 3rd resin storage tank (6) being loaded with the third material will move under structure platform
Side, takes over the first material and continues to accept the irradiation of dlp projector equipment (9) thus completing next layer of printing, so that print job is continued
Continue and carry out；Many materials dlp 3 D-printing chance selects respective material to be printed according to the setting cutting layer file, to meet difference
The number of plies uses the requirement of different materials.
7. a kind of many materials dlp three-dimensional printer according to claim 3 it is characterised in that: the model in print procedure
(3) be to be made up of three kinds of resin materials, these three resin materials be contained in respectively the first resin storage tank (4), the second resin storage tank (5),
In 3rd resin storage tank (6)；The material that a certain layer in layer file cut by model (3) is constituted, and the wherein first resin material (12) contains
In the first resin storage tank (4), the second resin material (13) is contained in the second resin storage tank (5), and the 3rd resin material (14) contains
In the 3rd resin storage tank (6).
8. a kind of many materials dlp three-dimensional printer according to claim 3 it is characterised in that: model (3) is cut in layer file
A certain layer be made up of three kinds of materials, then through process after file need three ability of dlp projector equipment (9) projection illumination
The print job of this layer can be completed；When the figure needing projection to be made up of the first resin material (12), equipped with the first resinous wood
First resin storage tank (4) of material (12) can move to below data mapping platform (2), through dlp projector equipment (9) projection illumination once
Complete this graphic printing；Then the second resin storage tank (5) equipped with the second resin material (13) will move to data mapping platform (2)
Lower section, take over the first resin storage tank (4) and accept dlp projector equipment (9) projection illumination once printing in this layer by the second resinous wood
The figure that material (13) is constituted；Finally, the 3rd resin storage tank (6) equipped with the 3rd resin material (14) moves to data mapping platform (2)
Lower section, take over the second resin storage tank (5) and accept dlp projector equipment (9) projection illumination once printing in this layer by the 3rd resinous wood
The figure of material 14 composition；So far, this layer of printing finishes, and data mapping platform (2) rises a floor height, carries out beating of next sublevel
Print, process is ibid.
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| CN201610844730.9A CN106363906A (en) | 2016-09-22 | 2016-09-22 | Multi-material digital light processing (DLP) three-dimensional printing method and printing equipment thereof |
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| CN106696259A (en) * | 2017-02-22 | 2017-05-24 | 无锡金谷三维科技有限公司 | Polar coordinate type 3D printer and printing method thereof |
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| CN113927897A (en) * | 2021-09-18 | 2022-01-14 | 深圳摩方新材科技有限公司 | High-utilization-rate multi-material resin 3D printing system and method |
| CN114559649A (en) * | 2022-01-12 | 2022-05-31 | 西安理工大学 | Multi-material-surface exposure 3D printing method of lattice-structure capacitor device |
| CN114986879A (en) * | 2022-06-24 | 2022-09-02 | 张泽 | 3D printer and printing process thereof |
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