CN103231514B - 3d printer - Google Patents
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- CN103231514B CN103231514B CN201310110666.8A CN201310110666A CN103231514B CN 103231514 B CN103231514 B CN 103231514B CN 201310110666 A CN201310110666 A CN 201310110666A CN 103231514 B CN103231514 B CN 103231514B
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Abstract
The invention discloses a 3D (three dimensional) printer, which comprises a frame, a liquid storage pot with an upper end opening, as well as a first resin cylinder, a second resin cylinder, a lifting platform, a line extrusion device and an ultraviolet (UV) light point light source arranged on the frame. The first resin cylinder is loaded with liquid UV light cured resin, and the second resin cylinder is loaded with paste UV light cured resin. The lower part of the second resin cylinder is communicated with the line extrusion device that is provided with a nozzle, and the irradiation position of the UV light point source is located below the nozzle. The lifting platform includes a flat plate provided with a through hole in the middle part, the upper surface of the flat plate is provided with a metal net, and the flat plate is in sliding connection with two guide pillars on the frame. The lower part of the liquid storage pot is communicated with an upper end opened liquid storage box arranged on the flat plate lower surface through a duct. The 3D printer provided in the invention has high printing efficiency, and while ensuring the printing efficiency, it also can guarantee that the printed object has high density and is difficult to damage.
Description
Technical field
The present invention relates to a kind of 3D printing technique field, especially relate to the 3D printer that a kind of printing effect is high.
Background technology
The operation principle of 3D printer is substantially identical with normal printer, is by conputer controlled, " printed material " to be stacked up from level to level, and finally the blueprint on computer is become in kind, this is a technological revolution of overturning conventional fabrication processes.
Common 3D printer operating speed is very slow and expensive, if will improve the printing effect of common 3D printer, then need the filling rate of filling rate parameter to reduce, the reduction of filling rate then causes the density of the object printed to reduce, intensity difference.
Therefore, common 3D printer can only use in places such as scientific research institutions, and 3D printing technique can't wide popularization and application.
Chinese patent mandate publication number: CN101531103A, authorizes publication date on May 18th, 2011, discloses a kind of printer control method and printer.Comprise the following steps: store the configuration information comprising the first data or the first order, described first data or the first order are used for making described printer based on buzzer configuration order, described buzzer be sounded a buzzer; And described printer makes described buzzer sound a buzzer based on described first data or the first order.Weak point is, the printer of this invention can not be used for 3D and print.
Summary of the invention
The present invention is to overcome the low deficiency of 3D printer printing effect of the prior art, providing the 3D printer that a kind of printing effect is high.
To achieve these goals, the present invention is by the following technical solutions:
A kind of 3D printer, comprises frame, the fluid reservoir of upper end open, is located at the first resin cartridge in frame, the second resin cartridge, hoistable platform, line material extrusion device and ultraviolet spot light; Fill liquid ultraviolet photo-curing resin in first resin cartridge, in the second resin cartridge, fill paste ultraviolet photo-curing resin; Second resin cartridge bottom and line material extrusion device are connected, and line material extrusion device is provided with shower nozzle, and the irradiation position of ultraviolet spot light is positioned at below shower nozzle;
First resin cartridge is connected with the opening of fluid reservoir by conduit, conduit is provided with magnetic valve, the cavity being provided with liquid ultraviolet photo-curing resin in fluid reservoir from the bottom to top successively, being positioned at the suspension board on liquid ultraviolet photo-curing resin upper surface and being positioned at above suspension board, fluid reservoir opening is provided with range sensor, and the signal transmitting and receiving end face of range sensor is to suspension board upper surface;
Described hoistable platform comprises that middle part is provided with the flat board of through hole, dull and stereotyped upper surface is provided with wire netting, dull and stereotyped and two leads be located in frame are slidably connected, flat board is connected with the screw mandrel be located in frame, and screw mandrel lower end is connected with the rotating shaft of the Z axis motor be located in frame; Fluid reservoir bottom is connected by the liquid reserve tank of conduit with the upper end open be located on dull and stereotyped lower surface;
Line material extrusion device and ultraviolet spot light are positioned on sliding seat, and frame is provided with the rail bracket that can drive sliding seat horizontal and vertical movement, the extruding motor that frame is provided with X-axis motor, y-axis motor and is connected with line material extrusion device;
Frame near described hoistable platform is provided with at least 1 ultraviolet lamp for irradiating towards hoistable platform; Computer is electrically connected with range sensor, magnetic valve, ultraviolet spot light, ultraviolet lamp and each motor respectively.
3D printer of the present invention is compared with common 3D printer, only need setting filling rate to be 0, the shell number of plies is 1 circle, just can get the solid body of other 3D setting of printer filling rate 100%, can save the time-write interval tens times, what printing objects was large even can raise the efficiency tens times.
The present invention uses paste and liquid ultraviolet photo-curing resin as printed material.Utilize the shell of paste ultraviolet photo-curing resin printing objects, paste ultraviolet photo-curing resin is cured by the irradiation of ultraviolet spot light; The liquid ultraviolet photo-curing resin in liquid reserve tank is utilized to fill enclosure interior, fluid reservoir and the mutual UNICOM of liquid reserve tank, print crust, hoistable platform declines one deck, the liquid ultraviolet photo-curing resin height of fluid reservoir remains unchanged, liquid ultraviolet photo-curing resin in liquid reserve tank constantly flows in housing, fills enclosure interior; After shell prints, computer control line material extrusion device stops extruding paste ultraviolet photo-curing resin, and computer controls ultraviolet lamps irradiates housing a period of time, the liquid ultraviolet photo-curing resin solidification of enclosure interior.
The altitude range of suspension board upper surface is preset in computer, in printing operation process, distance measuring sensor constantly detects the distance between suspension board upper surface, software in computer calculates the height of suspension board upper surface, when the suspension board height calculated is less than the minimum of a value of altitude range, then computer Controlling solenoid valve is opened, and liquid ultraviolet photo-curing resin flows into fluid reservoir from the first resin cartridge; When the suspension board height calculated is greater than the maximum of altitude range, then computer controls closed electromagnetic valve.Second resin cartridge bottom is connected by plastic tube and line material extrusion device.
The print procedure of 3D printer of the present invention is as follows:
Be first the object modeling of needs printing by the modeling software of computer, the threedimensional model built up be divided into some layer cross sections, and cross section information is stored in computer;
Computer controls hoistable platform and rises, and makes the some millimeters in wire netting distance shower nozzle lower end; Computer controls the height some millimeter of the liquid ultraviolet photo-curing resin upper surface in fluid reservoir lower than wire netting;
It is 0 that the software of computer sets filling rate, the shell number of plies is 1, the cross sectional information of ground floor transferred by computer, and computer makes X-axis motor, y-axis motor drive sliding seat to slide into the original position at the edge coordinate place of ground floor cross section and the edge along ground floor cross section moves;
Computer controls paste ultraviolet curable resin and extrudes from shower nozzle, and ultraviolet spot light irradiates the paste ultraviolet photo-curing resin extruded simultaneously, is pasted onto on wire netting through the paste ultraviolet photo-curing resin solidification irradiated;
After ground floor prints, computer to be declined a layer height by Z axis Electric Machine Control hoistable platform, and the liquid ultraviolet photo-curing resin in liquid reserve tank flows in housing, fills enclosure interior;
The cross sectional information of the second layer transferred by computer, and computer makes X-axis motor, y-axis motor drive sliding seat to slide into the original position at the edge coordinate place of ground floor cross section and the edge along ground floor cross section moves;
Computer controls paste ultraviolet curable resin and extrudes from shower nozzle, ultraviolet spot light irradiates the paste ultraviolet photo-curing resin extruded and the liquid ultraviolet photo-curing resin in ultraviolet spot light range of exposures, through the paste ultraviolet photo-curing resin that irradiates and liquid ultraviolet photo-curing resin;
After the second layer prints, computer to be declined a layer height by Z axis Electric Machine Control hoistable platform, and the liquid ultraviolet photo-curing resin in liquid reserve tank flows in housing, fills enclosure interior;
Repeat said process, print successively and fill each layer, until print and when having filled last one deck, shell print terminate; Computer control line material extrusion device stops extruding paste ultraviolet photo-curing resin, and computer controls the ultraviolet lamps irradiates shell one end time, and the liquid ultraviolet photo-curing resin solidification of enclosure interior, cube has printed.
While printing, the liquid ultraviolet photo-curing resin that computer is contained in the first resin cartridge by solenoid control constantly flows in fluid reservoir, makes the height of suspension board all the time in the altitude range preset.
As preferably, described sliding seat comprises the base be connected with rail bracket, the fixed bar be located on base, the charging three-way pipe that fixed bar is provided with, the front port of charging three-way pipe is connected with the described shower nozzle upper end be positioned on fixed bar, be provided with screw rod between charging three-way pipe front port and rear port, be connected with the second gear outside the rear port that spiro rod rear end stretches out charging three-way pipe;
Described extruding motor is positioned on base, and the rotating shaft of extruding motor is connected with the first gear, and the first gear bites conjunction mutually with the second gear; Described ultraviolet spot light is positioned on fixed bar.
As preferably, the direction of illumination of described ultraviolet spot light and shower nozzle are 20 degree to 70 degree angles.
As preferably, the direction of illumination of described ultraviolet spot light aims at 0.1 millimeter to 0.2 millimeter place below shower nozzle.
As preferably, the diameter of the range of exposures of described ultraviolet spot light is 4 millimeters to 6 millimeters.
The diameter of paste ultraviolet photo-curing resin in wire extruded than shower nozzle due to the range of exposures of ultraviolet spot light is large, liquid photocurable resin inside the paste ultraviolet photo-curing resin is also cured because of the irradiation of spot light simultaneously, the shell of printing objects thickens, thickness of shell is larger, spend high, not yielding by printing objects in print procedure.
As preferably, described range sensor is infrared distance sensor, laser range sensor or ultrasonic distance-measuring sensor.
As preferably, described rail bracket comprises the front rail be located in frame, rear transverse rod, and the rotating shaft of X-axis motor is connected with rear transverse rod, by left leather belt transmission between the left end of forward and backward cross bar, by right leather belt transmission between the right-hand member of forward and backward cross bar; Left leather belt is provided with left holder, and right leather belt is provided with right holder; Left holder and the left guide post extending longitudinally be located in frame are slidably connected, and right holder and the right guide post extending longitudinally be located in frame are slidably connected, and are provided with front guide post and rear guide post between left and right holder;
Y-axis motor is positioned on right holder, and the rotating shaft of y-axis motor is connected with the driving chain be located between left and right holder, and sliding seat is fixedly connected with driving chain.
Therefore, the present invention has following beneficial effect: (1) printing effect is high; (2) and guarantee printing effect while, can ensure that printed object density is high, not fragile.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is a kind of structural representation of sliding seat of the present invention;
Fig. 3 is a kind of structural representation of line material extrusion device of the present invention;
Fig. 4 is a kind of structural representation of rail bracket of the present invention;
Fig. 5 is a kind of theory diagram of the present invention.
In figure: computer 1, frame 2, fluid reservoir 3, first resin cartridge 4, second resin cartridge 5, hoistable platform 6, line material extrusion device 7, ultraviolet spot light 8, shower nozzle 9, conduit 10, magnetic valve 11, range sensor 12, dull and stereotyped 13, wire netting 14, lead 15, screw mandrel 16, Z axis motor 17, liquid reserve tank 18, sliding seat 19, rail bracket 20, X-axis motor 21, y-axis motor 22, extruding motor 23, ultraviolet lamp 24, fixed bar 25, charging three-way pipe 26, screw rod 27, second gear 28, first gear 29, front rail 30, rear transverse rod 31, left leather belt 32, right leather belt 33, left holder 34, right holder 35, left guide post 36, right guide post 37, front guide post 38, rear guide post 39, driving chain 40, base 41.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment is as shown in Figure 1 a kind of 3D printer, comprises frame 2, the fluid reservoir 3 of upper end open, is located at the first resin cartridge 4, second resin cartridge 5, hoistable platform 6, line material extrusion device 7 and ultraviolet spot light 8 in frame; The liquid ultraviolet photo-curing resin filled in first resin cartridge, the paste ultraviolet photo-curing resin filled in the second resin cartridge; Second resin cartridge bottom and line material extrusion device are connected, and line material extrusion device is provided with shower nozzle 9, and the irradiation position of ultraviolet spot light is positioned at below shower nozzle;
First resin cartridge is connected with the opening of fluid reservoir by conduit 10, conduit is provided with magnetic valve 11, the cavity being provided with liquid ultraviolet photo-curing resin in fluid reservoir from the bottom to top successively, being positioned at the suspension board on liquid ultraviolet photo-curing resin upper surface and being positioned at above suspension board, fluid reservoir opening is provided with range sensor 12, and the signal transmitting and receiving end face of range sensor is to suspension board upper surface;
Hoistable platform comprises that middle part is provided with the flat board 13 of through hole, dull and stereotyped upper surface is provided with wire netting 14, dull and stereotyped and two leads 15 be located in frame are slidably connected, flat board is connected with the screw mandrel 16 be located in frame, and screw mandrel lower end is connected with the rotating shaft of the Z axis motor 17 be located in frame; Fluid reservoir bottom is connected with the liquid reserve tank 18 of the upper end open be located on dull and stereotyped lower surface by conduit;
Line material extrusion device and ultraviolet spot light are positioned on sliding seat 19, and frame is provided with the rail bracket 20 that can drive sliding seat horizontal and vertical movement, the extruding motor 23 that frame is provided with X-axis motor 21, y-axis motor 22 and is connected with line material extrusion device;
Frame near described hoistable platform is provided with 1 ultraviolet lamp 24 for irradiating towards hoistable platform.
As shown in Figure 5, computer 1 is electrically connected with range sensor, magnetic valve, ultraviolet spot light, ultraviolet lamp and each motor respectively.
As shown in Figure 4, rail bracket comprises the front rail 30 be located in frame, rear transverse rod 31, and the rotating shaft of X-axis motor is connected with rear transverse rod, by left leather belt 32 transmission between the left end of forward and backward cross bar, by right leather belt 33 transmission between the right-hand member of forward and backward cross bar; Left leather belt is provided with left holder 34, and right leather belt is provided with right holder 35; Left holder and the left guide post 36 extending longitudinally be located in frame are slidably connected, and right holder and the right guide post 37 extending longitudinally be located in frame are slidably connected, and are provided with front guide post 38 and rear guide post 39 between left and right holder;
Y-axis motor is positioned on right holder, and the rotating shaft of y-axis motor is connected with the driving chain 40 be located between left and right holder.
As shown in Figure 2 and Figure 3, described sliding seat comprises the base 41 be connected with rail bracket, the fixed bar 25 be located on base, the charging three-way pipe 26 that fixed bar is provided with, the front port of charging three-way pipe is connected with the described shower nozzle upper end be positioned on fixed bar, be provided with screw rod 27 between charging three-way pipe front port and rear port, be connected with the second gear 28 outside the rear port that spiro rod rear end stretches out charging three-way pipe;
Described extruding motor is positioned on base, and the rotating shaft of extruding motor is connected with the first gear 29, and the first gear bites conjunction mutually with the second gear; Described ultraviolet spot light is positioned on fixed bar.
Base is fixedly connected with driving chain, and front guide post and rear guide post are each passed through the pilot hole be provided with on base, and front guide post is connected with base sliding respectively with rear guide post.
Ultraviolet spot light and shower nozzle are 45 degree of angles.The direction of illumination of ultraviolet spot light aims at 0.15 millimeter of place below shower nozzle.
The diameter of the range of exposures of ultraviolet spot light is 5 millimeters.Range sensor is infrared distance sensor.
The liquid ultraviolet photo-curing resin adopted in the present embodiment and paste ultraviolet photo-curing resin are water white.
Using 3D printer of the present invention to print a length of side is that the cubical Method of printing of 100 millimeters comprises the steps:
Step 100,3D modeling software in computer is cube modeling, thickness is divided into by the threedimensional model built up to be 370 layer cross sections of 0.27 millimeter, and cross section information is stored in computer, the altitude range presetting the suspension board upper surface in fluid reservoir be 50 centimetres-8 millimeters in 50 centimetres+8 millimeters.
Step 200, computer controls hoistable platform and rises, and makes wire netting distance 0.15 millimeter, shower nozzle lower end; Computer controls the height 2.15 millimeter of the liquid ultraviolet photo-curing resin upper surface in fluid reservoir lower than wire netting, and the height of the liquid ultraviolet photo-curing resin upper surface that computer controls in fluid reservoir remains unchanged;
While printing, the liquid ultraviolet photo-curing resin that computer is contained in the first resin cartridge by solenoid control constantly flows in fluid reservoir, makes the altitude range that the height of suspension board is being preset all the time: 50 centimetres-8 millimeters in 50 centimetres+8 millimeters.
Step 300, it is 0 that the software of computer sets filling rate, and the shell number of plies is 1; The cross sectional information of ground floor transferred by computer, and computer controls X-axis motor, y-axis motor drives sliding seat to slide into the original position of the edge coordinate of ground floor cross section along guide rail bracket;
Step 400, computer controls paste ultraviolet curable resin and extrudes from shower nozzle with the speed of 35 mm/second, computer makes X-axis motor, y-axis motor drive sliding seat to slide along the edge of ground floor cross section to move, ultraviolet spot light irradiates the paste ultraviolet photo-curing resin extruded simultaneously, is pasted onto on wire netting through the paste ultraviolet photo-curing resin solidification irradiated;
Step 500, after ground floor prints, computer to be declined a layer height by Z axis Electric Machine Control hoistable platform, and the liquid ultraviolet photo-curing resin in liquid reserve tank flows in housing, fills enclosure interior, setting number of plies i=2;
Step 600, the cross sectional information of i-th layer transferred by computer, and computer makes X-axis motor, y-axis motor drive sliding seat to slide into the original position at the edge coordinate place of i-th layer of cross section and the edge along i-th layer of cross section moves;
Step 700, paste ultraviolet curable resin is extruded from shower nozzle, computer controls X-axis motor, y-axis motor drives sliding seat to move along the edge of i-th layer of cross section, ultraviolet spot light irradiates the paste ultraviolet photo-curing resin extruded and the i-th-1 layer liquid ultraviolet photo-curing resin in ultraviolet spot light range of exposures, the paste ultraviolet photo-curing resin extruded and the i-th-1 layer liquid ultraviolet photo-curing resin solidification near housing;
Step 800, after printing when i-th layer, computer to be declined a layer height by Z axis Electric Machine Control hoistable platform, and the liquid ultraviolet photo-curing resin in liquid reserve tank flows in housing, fills enclosure interior;
Step 900, as i < 370, makes i value increase by 1 and repeats step 600 to the printing of step 800 and filling process;
Step 1000, computer control line material extrusion device stops extruding paste ultraviolet photo-curing resin, and computer controls ultraviolet lamps irradiates housing 5 minutes, and the liquid ultraviolet photo-curing resin solidification of enclosure interior, object has printed.Cube has printed, about 1 hour of total used time.
Following table is that the efficiency comparative of 3D printer of the present invention and common 3D printer shows:
Can be found out by upper table, 3D Method of printing of the present invention and printer are compared with common 3D printer, and 3D printer of the present invention effectively raises printing effect, reduces printing cost, for the popularization of 3D printer provides reliable basis.
Should be understood that the present embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (5)
1. a 3D printer, it is characterized in that, comprise frame (2), the fluid reservoir (3) of upper end open, is located at the first resin cartridge (4) in frame, the second resin cartridge (5), hoistable platform (6), line material extrusion device (7) and ultraviolet spot light (8); Fill liquid ultraviolet photo-curing resin in first resin cartridge, in the second resin cartridge, fill paste ultraviolet photo-curing resin; Second resin cartridge bottom and line material extrusion device are connected, and line material extrusion device is provided with shower nozzle (9), and the irradiation position of ultraviolet spot light is positioned at below shower nozzle;
First resin cartridge is connected with the opening of fluid reservoir by conduit (10), conduit is provided with magnetic valve (11), the cavity being provided with liquid ultraviolet photo-curing resin in fluid reservoir from the bottom to top successively, being positioned at the suspension board on liquid ultraviolet photo-curing resin upper surface and being positioned at above suspension board, fluid reservoir opening is provided with range sensor (12), and the signal transmitting and receiving end face of range sensor is to suspension board upper surface;
Described hoistable platform comprises that middle part is provided with the flat board (13) of through hole, dull and stereotyped upper surface is provided with wire netting (14), dull and stereotyped and two leads (15) be located in frame are slidably connected, flat board is connected with the screw mandrel be located in frame (16), and screw mandrel lower end is connected with the rotating shaft of the Z axis motor (17) be located in frame; Fluid reservoir bottom is connected with the liquid reserve tank (18) of the upper end open be located on dull and stereotyped lower surface by conduit;
Line material extrusion device and ultraviolet spot light are positioned on sliding seat (19), frame is provided with the rail bracket (20) that can drive sliding seat horizontal and vertical movement, the extruding motor (23) that frame is provided with X-axis motor (21), y-axis motor (22) and is connected with line material extrusion device;
Frame near described hoistable platform is provided with at least 1 ultraviolet lamp (24) for irradiating towards hoistable platform; Computer (1) is electrically connected with range sensor, magnetic valve, ultraviolet spot light, ultraviolet lamp and each motor respectively;
The diameter of the range of exposures of described ultraviolet spot light is 4 millimeters to 6 millimeters;
Described range sensor is infrared distance sensor, laser range sensor or ultrasonic distance-measuring sensor.
2. 3D printer according to claim 1, is characterized in that, described sliding seat comprises the base (41) be connected with rail bracket, the fixed bar (25) be located on base; Fixed bar is provided with charging three-way pipe (26), the front port of charging three-way pipe is connected with the described shower nozzle upper end be positioned on fixed bar, be provided with screw rod (27) between charging three-way pipe front port and rear port, be connected with the second gear (28) outside the rear port that spiro rod rear end stretches out charging three-way pipe;
Described extruding motor is positioned on base, and the rotating shaft of extruding motor is connected with the first gear (29), and the first gear bites conjunction mutually with the second gear; Described ultraviolet spot light is positioned on fixed bar.
3. 3D printer according to claim 2, is characterized in that, the direction of illumination of described ultraviolet spot light and shower nozzle are 20 degree to 70 degree angles.
4. 3D printer according to claim 1, is characterized in that, the direction of illumination of described ultraviolet spot light aims at 0.1 millimeter to 0.2 millimeter place below shower nozzle.
5. the 3D printer according to claim 1 or 2 or 3 or 4, it is characterized in that, described rail bracket comprises the front rail (30) be located in frame, rear transverse rod (31), the rotating shaft of X-axis motor is connected with rear transverse rod, by left leather belt (32) transmission between the left end of forward and backward cross bar, by right leather belt (33) transmission between the right-hand member of forward and backward cross bar; Left leather belt is provided with left holder (34), and right leather belt is provided with right holder (35); Left holder and the left guide post (36) extending longitudinally be located in frame are slidably connected, right holder and the right guide post (37) extending longitudinally be located in frame are slidably connected, and are provided with front guide post (38) and rear guide post (39) between left and right holder;
Y-axis motor is positioned on right holder, and the rotating shaft of y-axis motor is connected with the driving chain be located between left and right holder (40), and sliding seat is fixedly connected with driving chain.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310110666.8A CN103231514B (en) | 2013-04-01 | 2013-04-01 | 3d printer |
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| CN201310110666.8A CN103231514B (en) | 2013-04-01 | 2013-04-01 | 3d printer |
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| CN103231514A CN103231514A (en) | 2013-08-07 |
| CN103231514B true CN103231514B (en) | 2015-03-18 |
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| CN201310110666.8A Expired - Fee Related CN103231514B (en) | 2013-04-01 | 2013-04-01 | 3d printer |
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