KR20160107621A - 3D printer - Google Patents

Abstract

The present invention relates to a 3D printer. According to an embodiment of the present invention, the 3D printer comprises: a filament cartridge for supplying filaments; an extrusion unit for extruding the filaments supplied from the filament cartridge to the inside of a cavity; an interface unit for receiving the filament-related information from the filament cartridge, when the power is turned on; and a processor for controlling a supply speed of the filament cartridge, on the basis of the filament-related information. Accordingly, the 3D printer can vary the supply speed of the filament from the cartridge.

Description

3D printer {3D printer}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a 3D printer, and more particularly, to a 3D printer capable of varying a feed rate of filaments from a cartridge.

The 3D printer is a device that sequentially ejects predetermined materials on the basis of a three-dimensional drawing, stacks up layer layers with a fine thickness, and outputs a three-dimensional shape of a real object.

These 3D printers have been developed and used for manufacturing, and various products can be manufactured using 3D printers.

Meanwhile, various efforts have been made to improve the precision and surface finish of products made with 3D printers.

An object of the present invention is to provide a 3D printer capable of varying the supply speed of filaments from a cartridge.

According to another aspect of the present invention, there is provided a 3D printer comprising: a filament cartridge for supplying filaments; an extrusion unit for extruding filaments supplied from a filament cartridge into a cavity; An interface unit for receiving filament related information, and a processor for controlling the supply speed of the filament cartridge based on the filament related information.

According to an embodiment of the present invention, a 33D printer includes a filament cartridge for supplying filaments, an extruding portion for extruding filaments supplied from the filament cartridge into a cavity, And a processor for controlling the supply speed of the filament cartridge based on the filament-related information, so that the supply speed of the filament from the cartridge can be varied.

Particularly, by controlling the supply speed of the filament cartridge to be variable on the basis of the filament residual quantity information in the cartridge, the material information of the filament, and the color information of the filament among the filament related information, filament supply suitable for the remaining amount of filament, do.

On the other hand, by controlling the feed rate of the filament cartridge in proportion to the filament output speed in the extruding section, it is possible to change the feeding speed of the adaptive filament.

On the other hand, by controlling the feeding speed of the filament cartridge when the power is turned on to be faster than the feeding speed of the filament cartridge when the filament is output from the extruding portion, rapid filament feeding after power-on becomes possible.

On the other hand, when the activation is confirmed based on the authentication information among the filament-related information, the authentication success message is output, and when the activation fails, the authentication failure message is output, Can be easily confirmed.

According to the moving device in the 3D printer according to the embodiment of the present invention, it is possible to move the carriage on the x, y plane by using the single arm structure. In particular, The movement of the x-axis and the y-axis can be simultaneously performed by the operation of the motor. This makes it possible to form the surface shape more smoothly at the time of producing the molding.

1 is a perspective view illustrating a 3D printer and a filament supply apparatus according to an embodiment of the present invention.
2 is an enlarged perspective view of the filament cartridge of Fig. 1;
Fig. 3 is a perspective view showing the inside of the filament cartridge of Fig. 1; Fig.
4 is a diagram illustrating a 3D printer according to an embodiment of the present invention.
5 is a perspective view of an example of a mobile device in the 3D printer of Fig.
6A to 6H are views referred to in the description of the operation of the mobile device of FIG.
7 is an internal block diagram of the 3D printer of FIG.
8 is an example of the extruding portion of Fig.
9A to 9B are views showing various connection methods of the 3D printer and the filament supply apparatus of FIG.
10 is a flowchart showing an example of a method of operating a 3D printer according to an embodiment of the present invention.
11 is a flowchart showing another example of the operation method of the 3D printer according to the embodiment of the present invention.
Figs. 12A to 13F are diagrams referred to in explaining the operation method of Figs. 10 to 11. Fig.

Hereinafter, the present invention will be described in detail with reference to the drawings.

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

1 is a perspective view illustrating a 3D printer and a filament supply apparatus according to an embodiment of the present invention.

Referring to the drawings, the 3D printer 100 may include a case 101 having an opening for opening the three-dimensional molding and forming an appearance thereof. The 3D printer may include a door 105 that opens and closes the opening of the case 101. [

On the other hand, the filament supply device 1 of the 3D printer supplies the filament F to the 3D printer 100, and may be installed inside or outside the 3D printer 100.

Alternatively, the 3D printer 100 may be a concept including the filament supply device 1 of the 3D printer, or the 3D printer 100 and the filament supply device 1 of the 3D printer may be constituted of the 3D printer system Element.

The 3D printer 100 may be provided with a plate (not shown) on which a three-dimensional molding is placed. The 3D printer 100 may include an extrusion unit (not shown) for melting the filament fed from the filament feeder 1 of the 3D printer and outputting the filament to the plate, and a moving device (not shown) . ≪ / RTI > The moving device can be installed in the case 101, and the extruding part can output the molten filament on the plate while being operated three-dimensionally by the moving device.

The filament supply device 1 of the 3D printer includes a base 4, a filament cartridge 6 in which a filament F is accommodated, a rotatably installed base 4 and a filament cartridge 6 And a cartridge holder 12 on which the sliding guides 10 and 11 are formed.

A load of the filament cartridge 6 and the cartridge holder 12 can be applied to the base 4.

The base 4 may include a pair of walls 14 and 16 forming a receiving space in which the cartridge holder 12 is inserted and accommodated.

The base 4 may include a lower plate 18. The pair of walls 14 and 16 may protrude upward from the upper surface of the lower plate 18. The pair of walls 14 and 16 may be formed on the lower plate 18 so as to be spaced apart from each other and may be formed facing each other.

The receiving space of the base 4 can be opened on the upper surface. The receiving space of the base 4 may be a space in which the filament cartridge 6 is received together with the cartridge holder 12. [

The filament cartridge 6 can be formed in a three-dimensional shape and can be mounted outside the cartridge holder 12 to the cartridge holder 12 or can be separated from the cartridge holder 12 to outside the cartridge holder 12.

The filament cartridge 6 can be provided with a handle 22 at one side and the user can hold the handle 22 and separate the filament cartridge 6 from the cartridge holder 12 or mount it in the cartridge holder 12. [ have.

The filament cartridge 6 can be provided with a locking groove (not shown), and the elastic protrusion (not shown) formed in the cartridge holder 12 can be caught by the locking groove (not shown) The elastic protrusions (not shown) are caught by the engaging grooves (not shown) when the holder 12 is mounted on the holder 12, so that the position thereof can be maintained without any dismounting in the cartridge holder 12. [

The cartridge holder 12 may be opened at one side of the front surface, the back surface, the left side surface, and the right side surface. The cartridge holder 12 can be opened on its upper surface. The filament cartridge 6 can be inserted into and out of the cartridge holder 12 through the open surface of the peripheral surface of the cartridge holder 12. [ When the filament cartridge 6 is mounted to the cartridge holder 12, all or a part of its upper surface can be seen through the open upper surface of the cartridge holder 12. [

The sliding guides 10 and 11 may include a left sliding guide 10 formed on the left side of the cartridge holder 12 and a right side sliding guide 11 formed on the right side of the cartridge holder 12. The left sliding guide 10 and the right sliding guide 11 can be positioned facing each other. The left sliding guide 10 may be formed long on the left side plate 32. The right sliding guide may be formed long on the upper side of the right side plate 33.

The cartridge holder 12 may be formed with a holder space (not shown) in which a part of the filament cartridge 6 is slidably inserted and accommodated.

 The cartridge holder 12 may be smaller than the accommodation space formed between the pair of walls 14 and 16 and all of them may be positioned to be inserted between the pair of walls 14 and 16.

The cartridge holder 12 may be rotatably connected to at least one of the pair of walls 14, 16. The cartridge holder 12 may be connected to at least one of the pair of walls 14, 16 by a horizontal rotation shaft (not shown).

FIG. 2 is an enlarged perspective view of the filament cartridge of FIG. 1, and FIG. 3 is a perspective view of the filament cartridge of FIG. 1.

Referring to the drawings, the filament cartridge 6 may include a filament case 50 forming an outer appearance thereof and a filament spool 52 wound with a filament F.

The filament cartridge 6 may be formed with a filament outlet hole 54 through which the filament F passes. The filament outlet hole 54 may be formed in the filament case 50 and the filament may be drawn out of the filament case 50 through the filament outlet hole 54.

The filament case 50 may be composed of a combination of a plurality of members. The handle 22 and the latching groove (not shown) may be formed in the filament case 50. The filament cartridge 6 may include a filament spool on which the filament F is wound. The filament spool may be located inside the filament case 50.

The filament cartridge 6 may include a drive roller mechanism 56 that is rotatably disposed in the filament case 50 and contacts the filament F to push the filament F into the filament outlet hole 54 .

The filament case 50 may have a space S3 in which a filament spool 53 is rotatably received. The filament case 50 may have a filament outlet hole 54 through which the filament F passes. The filament case 50 may be composed of a combination of a plurality of members, and the inside of the filament case 50 may be configured to be openable and closable. The filament case 50 may include a lower case 51 and an upper case 52. A space S3 may be formed between the lower case 51 and the upper case 52. [ The lower case 51 may be in the form of a box whose upper surface is open. The upper case 52 may be disposed above the lower case 51. The upper case 52 may be coupled to the lower case 51 and may form a space S3 between the lower case 51 and the lower case 51. [ The upper case 52 may cover the upper side of the lower case 51. The upper case 52 may be in the form of a box whose lower surface is opened. A filament outlet hole 54 may be formed in one of the lower case 51 and the upper case 52. At least one of the lower case 51 and the upper case 52 may be provided with a drive roller mechanism support portion for supporting the drive roller mechanism 56. [ At least one of the lower case 51 and the upper case 52 may be provided with a roller mounting portion on which an idler 58 described later is mounted. Span support portions 51a and 51b for rotatably supporting the filament spool 52 may be formed in the filament case 50. [ The spool support portions 51a and 51b may protrude from at least one of the lower case 51 and the upper case 52. The spool support portions 51a and 51b may include an inner support rib 51a that is inserted into the hollow portion 53a of the filament spool 52 to rotatably support the filament spool 52. [ The spool support portions 51a and 51b may include an outer support rib 51b formed to surround the outer periphery of the filament spool 52 and rotatably supporting the filament spool 52. [

The filament spool 53 can be installed inside the filament case 50 and can be protected by the filament case 50 so that contamination and damage of the filament F wound on the filament spool 53 can be minimized have. The filament spool 53 can be rotatably received in the filament case 50. The filament F wrapped around the filament spool 53 can be drawn out of the filament case 50 through the filament outlet hole 54 and supplied to the inside of the 3D printer 100. [ The filament spool 53 can be rotatably seated on the lower case 51. The spool support portion 51a formed in the filament case 50 is inserted into the hollow portion 53a of the filament spool 53 to be inserted into the filament spool 53, And can be formed with a hollow portion. The filament F can be wound around the outer circumference of the hollow portion 53a of the filament spool 53. The filament spool 53 may include a lower plate 53b projecting from the hollow portion 53a and an upper plate 53b. The filament F can be wound around the lower plate 53b of the filament spool 53 and the upper plate 53c. The outer circumference of the lower plate 53b of the filament spool 53 can constitute the outer circumference of the filament spool 53. [ The outer circumference of the upper plate 53b of the filament spool 53 can constitute the outer circumference of the filament spool 53. [ The lower plate 53b of the filament spool 53 is inserted into the outer support rib 51b and can be supported by the outer support rib 51b.

The drive roller mechanism 56 includes a roller 62 formed with a contact portion 60 to which the filament F is to be contacted and which is disposed so as to be able to move up and down in the filament case 50 and a support shaft 64 ).

The filament supply device of the 3D printer may further include an upper guide 66 installed above the filament case 50 and guiding the support shaft 64.

The filament supply device of the 3D printer may further include an idler 109 installed in the filament case 50 to press the filament F in the direction of the drive roller mechanism 56.

The idler 109 may be disposed to face at least a part of the drive roller mechanism 56. [ The idler 109 is disposed in the filament case 50 so as to face the drive roller mechanism 56 to support the filament F. [

The idler 58 may include an idler roller 112 that contacts the filament F and an idler bracket 114 that rotatably supports the idler roller 112. [

The idler roller 112 may be installed in the idler bracket 114 so as to face the roller 62. The idler roller 112 may be mounted on the idler bracket 114 and connected to the idler bracket 114 by a hinge shaft 113. The idler roller 112 can press the filament F in the direction of the roller 62 and the filament F can be moved between the idler roller 112 and the push roller 72 by the pull roller 72 .

The idler bracket 114 may be rotatably connected to the lower case 51 by a hinge shaft 115.

The idler 109 may further include a spring 116 connected to the idler bracket 114 and the lower case 51 so as to be urged in the direction of the idler roller 112.

4 is a diagram illustrating a 3D printer according to an embodiment of the present invention.

4, a 3D printer 100 according to an embodiment of the present invention includes a case 101 forming an outer appearance, a cavity 50 formed in the case 101 and serving as a space for forming a molding, A moving device 200 disposed in the case 101 for moving and outputting material for forming a molding, and the like. In addition, there are provided a door 105 for entering and exiting the finished sculpture to and from the outside, a window 103 formed on the door 105 so as to be able to see the inside of the cavity 50, , A display (not shown) for displaying an operation state of the 3D printer, and the like.

Meanwhile, in the 3D printer described in the present specification, a first method in which a thermoplastic material (ABS, polyamide) made of a filament wire is melted in a nozzle to solidify the material in a thin film form and then laminate the material, a polymer material or a metal powder, A second method in which a laser is used to sinter the parts to be formed using a laser, and a photo-curing resin in a liquid state is placed in a chamber and the resin is cured by using laser light, ultraviolet light, digital light illumination A fourth method for curing a resin using ultraviolet rays at the same time of jetting a photo-curable liquid resin using an inkjet printhead, a method for cutting a material coated with an adhesive to a desired cross section by using a laser beam, And a fifth system in which the resin is laminated and formed.

In the present invention, a method of melting a thermoplastic material (ABS, polyamide) made of filament wires in a first method in a nozzle to solidify the same in a thin film form and then laminating it is described.

According to the first method, a step of post-curing is unnecessary, a product production time is shortened, a product having various colors can be produced, lightness and manufacturing cost are reduced.

Thus, according to an embodiment of the present invention, the mobile device 200 can move the attached carriage 280 into at least the x, y plane. On the other hand, the carriage 280 is provided with an extrusion portion (300 in Fig. 5 or 6) for outputting filaments.

Then, as the carriage 280 to be attached moves into the x, y plane by the moving device 200, the heated filaments are sequentially stacked on the plate (115 in Fig. 5) in the cavity. Thereby, the user can create the desired sculpture.

On the other hand, as the thermoplastic resin, ABS, PLA and the like can be used for the filament.

On the other hand, the mobile device 200 will be described in more detail with reference to FIG.

5 is a perspective view of an example of a mobile device in the 3D printer of Fig.

Referring to the drawings, the mobile device 200 includes a support base 113, a plate 115 disposed on the support base 113, a plate 115 disposed on one side of the support base 113 and extending in a direction intersecting the support base 113, A first guide portion 116a and a second guide portion 116b extending in the direction of the first guide portion 116a and an elevation shaft 117 between the second guide portion 116a and the second guide portion 116b.

The moving device 200 includes a first guide portion 116a, a second guide portion 116b and a drive motor 251 for driving the z axis, which is disposed above the elevation shaft 117, A steel plate 252 may be provided. The drive motor 251 is disposed on the lift plate 252 and the first guide portion 116a, the second guide portion 116b, and the elevation shaft 117 are rotated by the operation of the drive motor 251 Accordingly, the drive motor 251 and the lift plate 252 can move in the z-axis direction.

On the other hand, the drive motor 251 for driving the z-axis and the lift plate 252 may be referred to as a second moving unit 220 for moving the z-axis in the moving apparatus 200.

On the other hand, on the upper side of the drive motor 251 and the lift plate 252, a frame 215 extending in the y-axis direction and a frame 215 extending in the x- an arm 225 is disposed.

The moving device 200 includes driving motors 212 and 214 disposed at both ends of the frame 215 on the frame 215 and timing pulleys 211 and 213 connected to the motors 212 and 214, Respectively.

On the other hand, the mobile device 200 includes idlers 216a, 216b, 216c, and 216d disposed on the arm 225 in regions where the arm 225 and the frame 215 cross each other, The carriage 280 extends through the idlers 216e, 216f and 216g disposed at both ends of the carriage 225 and the plurality of idlers 216a to 216g and the timing pulleys 211 and 213, And a timing belt 217 for transmitting the driving force of the first and second cams 212 and 214.

The timing belt 217 includes a first timing pulley 211 attached to the first drive motor 212, idlers 216a, 216f and 216d, a second timing pulley (not shown) attached to the second drive motor 214, 213, idlers 216c, 216g, 216b, and a first timing pulley 211 attached to the first drive motor 212. [

The moving direction and the moving speed of the timing belt 217 and the like are determined in accordance with the rotational direction and the rotational speed of the first driving motor 212 and the second driving motor 214. Accordingly, The arm 225 can move in the y axis direction and the carriage 280 mounted on the arm 225 can move in the x axis direction.

More specifically, in the mobile device 200 of FIG. 5, when the first drive motor 212 and the second drive motor 214 rotate in the same direction, the arm 225 in the mobile device 200 moves in the y- The moving device 200 of Fig. 5 moves to the carriage 200 disposed in the arm 225 in the moving device 200 if the direction of rotation of the first driving motor 212 and the second driving motor 214 is reversed, (280) moves along the x-axis. This will be described later with reference to Figs. 6A to 6H.

On the other hand, the drive motors 212 and 214 for driving the x and y axes, the frame 215, the arm 225, the carriage 280, the idlers 216a to 216g, the timing pulleys 211 and 213, 217 and the like may be referred to as a first moving unit 210 which is responsible for x and y axis movement in the mobile device 200. At this time, it may not be included in the first moving unit 210.

The first moving part 210 includes a frame 215 extending in a first direction and a frame 215 extending in a second direction intersecting the frame 215 and the carriage 280 is disposed First and second driving motors 212 and 214 disposed on the frame 215 and spaced from each other; timing pulleys 211 and 213 connected to the first and second driving motors 212 and 214; A plurality of timing pulleys 216a to 216g disposed on the timing belt 225 and timing belts 270 extending through the timing pulleys 211 and 213 and 216a to 216g.

On the other hand, when the first and second driving motors 212 and 214 rotate in the same direction, the first moving unit 210 moves the arm in the first direction, and the first and second driving motors 212 and 214 are opposite The carriage 280 on the arm moves in the second direction

 On the other hand, when any one of the first and second driving motors 212 and 214 is operated, the first moving unit 210 moves the carriage 280 in the second direction while moving the arm in the first direction.

On the other hand, by the operation of the drive motor 251, the frame 215, the arm 225, the carriage 280, etc. as well as the drive motor 251 and the lift plate 252 can move in the z- .

On the other hand, the extrusion portion 300 is attached to the carriage 280 disposed on the arm 225. On the other hand, it is also possible that a bracket (not shown) is connected between the carriage 280 and the extrusion portion 300, unlike the drawing.

On the other hand, unlike the drawing, the second drive unit 220 can move the plate 115 in the z-axis direction without moving the drive motor 251 and the lift plate 252.

In the meantime, according to the mobile device 200 according to the embodiment of the present invention, the carriage 280 can be moved on the x, y plane by using the single arm 225 structure, The x-axis and y-axis movements can be simultaneously performed by the operation of at least one of the drive motors. This makes it possible to form the surface shape more smoothly at the time of producing the molding.

6A to 6H are views referred to in the description of the operation of the mobile device of FIG.

6A and 6B illustrate that the carriage 280 moves in the x-axis direction.

First, FIG. 6A illustrates that the carriage 280 advances when the first drive motor 212 rotates right and the second drive motor 214 turns left. That is, the carriage 280 is moved in the opposite direction to the frame 215. [

FIG. 6B illustrates that the carriage 280 is reversed when the first drive motor 212 makes a left turn and the second drive motor 214 makes a right turn. That is, it is illustrated that the carriage 280 moves in the direction of the frame 215.

Next, FIGS. 6C to 6D illustrate movement of the arm 225 in the y-axis.

First, FIG. 6C illustrates that the arm 225 moves to the left when the first drive motor 212 and the second drive motor 214 make a right turn. That is, it is illustrated that the arm 225 moves in the direction of the first drive motor 212.

6D illustrates that the arm 225 moves to the right when the first drive motor 212 and the second drive motor 214 make a left turn. That is, the arm 225 is moved in the direction of the second drive motor 214. [

Next, FIGS. 6E to 6H illustrate that the carriage 280 moves in the x-axis and the arm 225 moves in the y-axis.

6E first illustrates that the carriage 280 moves in the upper right direction when the first drive motor 212 makes a left turn and the second drive motor 214 stops. That is, the arm 225 is moved to the right side, and the carriage 280 is moved backward. As a result, the carriage 280 moves in the direction of approximately 45 degrees.

Next, FIG. 6F illustrates that the carriage 280 moves in the lower right direction when the first drive motor 212 stops and the second drive motor 214 makes a left turn. That is, the arm 225 is moved to the right side, and the carriage 280 is advanced. As a result, the carriage 280 moves in the direction of approximately 135 degrees.

6G illustrates that the carriage 280 moves in the lower left direction when the first drive motor 212 makes a right turn and the second drive motor 214 stops. That is, the arm 225 moves to the left side, and the carriage 280 moves forward. As a result, the carriage 280 moves in the direction of approximately 225 degrees.

6H illustrates that the carriage 280 moves in the upper left direction when the first drive motor 212 stops and the second drive motor 214 makes a right turn. That is, the arm 225 moves to the left side, and the carriage 280 moves backward. As a result, the carriage 280 moves in the direction of about 315 degrees.

In the meantime, according to the mobile device 200 according to the embodiment of the present invention, the carriage 280 can be moved on the x, y plane by using the structure of the single arm 225, 6h, the movement of the x- and y-axes can be performed simultaneously by the operation of at least one of the two drive motors. This makes it possible to form the surface shape more smoothly at the time of producing the molding.

7 is an internal block diagram of the 3D printer of FIG.

Referring to the drawings, a 3D printer 100 includes an external device interface unit 130, a network interface unit 120, a memory 140, a processor 170, a display 180, a power supply unit 195, (200), and an extrusion unit (300).

The input unit 110 transmits a signal input by the user to the processor 170. To this end, an operation button or the like may be provided. For example, the power-on signal, the start signal by the start button, the pause signal by the pause button, and the like may be transmitted to the processor 170 by the power-on button.

The network interface unit 120 provides an interface for connecting the 3D printer 100 to a network by a wire / wireless data communication method. For example, the network interface unit 120 provides an interface connectable to a mobile terminal, a PC, and the like, and thus can exchange data with a mobile terminal, a PC, or the like. In addition, data can be exchanged with an external server (not shown) via a network. On the other hand, various data communication methods such as Bluetooth, WiFi Direct, WiFi, DLNA and APiX are available as the wireless data communication method.

For example, through the network interface unit 120, a 3D graphic image for 3D sculpture creation can be received from a PC or a mobile terminal connected to a wire or wirelessly.

On the other hand, when the 3D printer 100 is powered on, the network interface unit 120 can exchange data with the filament cartridge 6. For example, when the 3D printer 100 is powered on, filament related information can be received from the filament cartridge 6.

The external device interface unit 130 provides an interface for exchanging data with an external device via input terminals such as USB and HDMI. For example, a 3D graphic image for 3D sculpture creation can be received from a USB storage device, which is an external device, via a USB terminal.

Meanwhile, the external device interface unit 130 can exchange data with an external device through wired / wireless wired networks.

On the other hand, when the 3D printer 100 is powered on, the external device interface unit 130 can exchange data with the filament cartridge 6. For example, when the 3D printer 100 is powered on, filament related information can be received from the filament cartridge 6.

The memory 140 may store a program for each signal processing and control within the processor 170 and may also store signal processed video, audio, or data signals.

In addition, the memory 140 may perform a function for temporarily storing video, audio, or data signals input from the external device interface unit 130.

The processor 170 can control each unit in the 3D printer 100. [

The processor 170 is connected to the mobile device 200 and the extruder (not shown) to generate a 3D sculpture based on the 3D graphic image input from the network interface unit 120 or the external device interface unit 130 300 can be controlled.

Specifically, the processor 170 may control the first drive motor 212 and the second drive motor 214 such that the mobile device 200 is moved in the x and y axes, as shown in Figures 6A-6H . That is, the first driving motor 212 and the second driving motor 214 in the first moving unit 210 can be controlled.

For example, the processor 170 may rotate the first and second driving motors 212 and 214 in the same direction to move the arm 225 in the first direction, and the first and second driving motors 212 and 214 212 and 214 rotate in the opposite direction so that the carriage 280 on the arm 225 can move in the second direction.

As another example, the processor 170 may operate either the first and second drive motors 212 and 214 to move the carriage 280 in the second direction while moving the arm 225 in the first direction .

The processor 170 can also control the driving motor 251 in the second moving part 220 so that the moving device 200 is moved in the z axis.

On the other hand, the processor 170 can control the filament moving speed and the like in the extruder 300. The moving speed of the filament can be determined according to the temperature of the extruding part 300. [ For example, the higher the temperature, the greater the speed of movement.

The processor 170 controls the filament moving part 310, the heating part 320 and the cooling part 330 in the extrusion part 300 in order to control the filament moving speed and the like in the extruder 300. [ And so on.

The processor 170 receives the sensed temperature from the first temperature sensing unit 325 that senses the temperature of the heating unit 320 and senses the second temperature sensed by the cooling unit 330, It is possible to receive the sensed temperature from the sensor 335.

The processor 170 may control the heating unit 320 and the cooling unit 330 based on the first temperature sensing unit 325 and the second temperature sensing unit 335. [

For example, the processor 170 controls the heating unit 320 to rise to the target heating temperature, and controls the cooling unit 330 to be lowered to the target cooling temperature.

On the other hand, when the temperature of the cooling section 330 is equal to or higher than the target cooling temperature, the processor 170 can temporarily lower the target heating temperature.

On the other hand, the processor 170 can stop the operation of the filament moving unit 310 when the temperature of the second temperature sensing unit 335 is higher than a predetermined value.

At least one of the heating unit 320 and the cooling unit 330 may be provided so that the difference between the temperature of the first temperature sensing unit 325 and the temperature of the second temperature sensing unit 335 is within a predetermined range, .

On the other hand, the processor 170 can control the supply speed of the filament cartridge 6 based on the filament-related information from the filament cartridge 6. [

For example, the filament-related information may include filament residual amount information in the cartridge 6, material information of the filament, and color information of the filament.

The processor 170 can control the supply speed of the filament cartridge 6 to vary based on the filament remaining amount information, the filament material information, and the color information of the filament.

Specifically, the processor 170 can control the supply speed of the filament cartridge 6 to be small when the remaining amount of the filament is not more than a predetermined value.

On the other hand, the processor 170 can control the supply speed of the filament cartridge 6 to vary according to the material information of the filament.

On the other hand, the processor 170 can control the supply speed of the filament cartridge 6 to vary according to the color information of the filament.

The processor 170 controls the feeding speed of the filament cartridge 6 based on the filament output speed and the filament related information in the extruding unit 300 when the filament is output in the extruding unit 300 can do.

On the other hand, the processor 170 determines whether the supply speed of the filament cartridge 6 is faster than the supply speed of the filament cartridge 6 when the filament is output from the extruding unit 300 .

On the other hand, the processor 170 can control the feeding rate of the filament cartridge 6 in proportion to the filament output speed in the extruding section 300 when the filament is output in the extruding section 300. [

On the other hand, when the supply of the filament in the filament cartridge 6 is interrupted, the processor 170 may stop the filament output in the extruding section 300 or may control to output the filament in a certain area in the cavity.

On the other hand, the processor 170 extracts the authentication information of the cartridge 6 from among the filament-related information, and controls to output an authentication success message when the activation is confirmed based on the authentication information, , And to output an authentication failure message when the activation fails.

On the other hand, the processor 170 controls to output an authentication success message when the activation is confirmed based on the authentication information, and when the activation fails, the control unit 170 outputs the authentication failure message can do.

On the other hand, based on the authentication information, the processor 170 can control to stop the sculpture creation operation when the activation fails. For example, the movement of the mobile device 200 may be stopped or the operation of the extrusion part 300 may be stopped.

The display 180 may display information relating to the operation of the 3D printer 100. For this image display, the display 180 may be implemented as a PDP, an LCD, an OLED, or the like.

The power supply unit 195 can supply power necessary for the operation of each component under the control of the processor 170. [ In particular, it is possible to supply power to a processor 170, which may be implemented as a system on chip (SOC), a display 180 for information display, and the like. To this end, the power supply unit 195 may include a converter that receives the AC power and converts the DC power into a DC power, and a dc / dc converter that converts the level of the DC power.

On the other hand, the cartridge driving portion 196 can drive the cartridge 6 attached to the filament supply device 1. [

To this end, the cartridge driving unit 196 can receive a control signal from the processor 170. [

On the other hand, the cartridge driving unit 196 receives the filament-related information including the filament residual amount information, the filament information, the color information of the filament, and the authentication information from the filament cartridge 6, ).

On the other hand, the cartridge driving unit 196 transmits the supply speed information of the cartridge, which is generated on the basis of the filament remaining amount information, the filament information of the filament, and the color information of the filament, to the filament cartridge 6 in the processor 170, It is also possible to drive the motor 6c in the filament cartridge 6 in correspondence with the supply speed information of the filament.

The filament cartridge 6 includes a sensor portion 6a for detecting the speed of the filament output from the filament cartridge 6, a memory 6b for storing filament related information, and a motor 6c ).

As described above, the memory 6b can store filament-related information including filament residual amount information, material information of the filament, color information of the filament, and authentication information.

When the 3D printer 100 is powered on, the filament cartridge 6 receives the filament-related information through the cartridge driving unit 196, the network interface unit 120, or the external device interface unit 130, Can be transmitted to the 3D printer 100.

8 is an example of the extruding portion of Fig.

Referring to the drawings, an extruder 300 attached to a carriage 280 includes a filament moving part 310 for moving a filament to be introduced downward, a filament moving part 310 for moving a filament moving part 310, A nozzle 340 for outputting the heated filament into the cavity 50 and a filament moving unit 350 for heating the filament by the heating unit 320 to the filament moving unit 310 or the vicinity thereof, And a cooling unit 330 for cooling the unit 310.

The extruder 300 includes a first temperature sensing unit 325 for sensing the temperature of the heating unit 320 and a second temperature sensing unit 335 for sensing the temperature of the cooling unit 330. [ As shown in FIG.

The filament moving unit 310 includes a driving motor 312 and a gear 314a which is operated by the driving motor 312 so as to move the filament F to be introduced in a downward direction, , And 314b. By the rotation of the gears 314a and 314b, the solid state filament F on the movement path is moved in the downward direction.

On the other hand, the heating unit 320 heats the filament transferred by the filament moving unit 310. To this end, the fitting portion 320 may include a heater (not shown) and a heater driving portion (not shown). Meanwhile, a first temperature sensing unit 325 for sensing the temperature of the heating unit 320 may be provided in the heating unit 320. The sensed temperature is communicated to the processor 170.

On the other hand, the nozzle 340 outputs the filament heated in the heating part 320 into the cavity 50. Particularly, as described above, it is possible to generate a molding of a predetermined shape in accordance with the movement of the carriage 280 along the x- and y-axes.

On the other hand, the operation speed of the filament moving part 310 and the like are also important for supplying the filament quickly, but cooling of the filament moved by the operation of the filament moving part 310 is also an important factor.

It is preferable that the cooling unit 330 is provided so that heat is not transmitted to the filament moving unit 310 or the vicinity thereof by heating of the heating unit 320.

The cooling unit 330 may include a heat radiating member 334 contacting the filament moving unit 310 and a cooling fan 332 for cooling the heat radiating member.

The cooling fan 332 operates by driving the processor 170 and the air flow path by the operation of the cooling fan 332 can be formed in the direction of the heat radiation member 334. The heat radiating member 334 may include a heat radiating plate.

The cooling unit 330 may further include a base unit 337 contacting the heating unit 320. The base portion 337 may be disposed on the upper portion of the heating portion 320 and on the heat radiating member 334 and the cooling fan 332.

On the other hand, the base portion 337 can be formed of a metal material having high thermal conductivity. For example, it may be formed of an aluminum material.

A second temperature sensing unit 335 senses the temperature of the cooling unit 330. The second temperature sensing unit 335 senses the temperature of the cooling unit 330. The second temperature sensing unit 335 senses the temperature of the cooling unit 330, (Not shown).

Specifically, the second temperature sensing unit 335 may be disposed on the base unit 337. Then, the sensed temperature is transmitted to the processor 170.

The processor 170 controls the heating unit 320 to rise to a target heating temperature based on the temperature sensed by the first temperature sensing unit 325 and controls the temperature sensed by the second temperature sensing unit 335 The cooling unit 330 can be controlled to be lowered to the target cooling temperature.

Specifically, the processor 170 controls the operation time of the heater (not shown) such that the heating portion 320 is raised to the target heating temperature. Then, based on the temperature sensed by the second temperature sensing unit 335, the operation time, the rotation speed, and the like of the cooling fan 332 are controlled so that the cooling unit 330 is lowered to the target cooling temperature.

The processor 170 controls the heating unit 320 to maintain the target heating temperature based on the first temperature and the second temperature that are continuously sensed and controls the cooling unit 330 to maintain the target cooling temperature or lower .

The processor 170 may temporarily disable the heater (not shown) temporarily when the heating unit 320 maintains the target heating temperature. For example, when the target heating temperature is maintained for the first period, the heater (not shown) may be temporarily not operated.

On the other hand, the processor 170 may temporarily stop the operation of the cooling fan 332 when the cooling unit 330 holds the target cooling temperature for the second period.

On the other hand, when the temperature of the cooling section 330 is equal to or higher than the target cooling temperature, the processor 170 can temporarily lower the target heating temperature.

Alternatively, the processor 170 may stop the operation of the filament moving unit 310 when the temperature of the cooling unit 330 is higher than or equal to the target cooling temperature for a predetermined time or longer. When the temperature of the cooling unit 330 is again equal to or lower than the target cooling temperature after a predetermined time, it is possible to control the operation of the filament moving unit 310 to operate.

The processor 170 determines whether the difference between the temperature of the first temperature sensing unit 325 and the temperature of the second temperature sensing unit 335 is within a predetermined range At least one of the heating unit 320 and the cooling unit 330 can be controlled.

Meanwhile, the processor 170 may control the moving speed of the filament moving part 310 to decrease as the temperature of the heating part 320 increases. Specifically, when the heating unit 320 rises above the target heating temperature, the moving speed of the filament is excessively increased, so that the processor 170 can temporarily control the moving speed of the filament moving unit 310 to be reduced have.

Alternatively, the processor 170 may control the temperature of the cooling unit 330 to decrease as the temperature of the heating unit 320 increases. Specifically, the processor 170 temporarily controls the temperature of the cooling unit 330 to decrease as the temperature of the heating unit 320 increases, in order to reduce heat transmitted to the filament moving unit 310 .

As a result, the first and second temperature sensing units 325 and 335, which sense the temperature of the heating unit 320 and the temperature sensing unit 335, respectively, And the cooling unit 33, it is possible to stably improve the output speed of the filament. Therefore, when the 3D printer 100 is used to generate the sculpture, the generation time can be shortened.

9A to 9B are views showing various connection methods of the 3D printer and the filament supply apparatus of FIG.

9A, a 3D printer 100 and a filament supply device 1 for a 3D printer are formed on a side surface of a 3D printer 100 and include a protruding first connection portion 196a, Through the second connecting portion 198 formed on the side surface of the filament supply device 1 and being recessed.

The 3D printer 100 and the filament supply device 1 for 3D printer can exchange data through the first connecting portion 196a and the second connecting portion 198. [

For example, as described above, the cartridge-related information stored in the memory 6b in the filament cartridge 6 can be transferred from the filament supply device 1 for 3D printer to the 3D printer 100. [

As another example, in the 3D printer 100, the filament feeding rate information or the motor driving signal for adjusting the filament feeding speed may be transmitted to the 3D printer 100. [

9B, the 3D printer 100 and the filament supply device 1 for a 3D printer are formed on the side surface of the 3D printer 100 and include a protruding first connection part 197a, Through the second connecting portion 197b formed on the side surface of the filament supply device 1 and protruding.

The 3D printer 100 and the filament supply device 1 for a 3D printer via the first connecting portion 1967 and the second connecting portion 197b are capable of supplying the cartridge relating information or the filament feeding speed information or the filament feeding speed control Can be transmitted.

10 is a flowchart showing an example of a method of operating a 3D printer according to an embodiment of the present invention.

The processor 170 of the 3D printer 100 may control the power from the power supply unit 195 to be transmitted to the internal unit when the power ON key of the input unit 110 is operated.

On the other hand, the processor 170 of the 3D printer 100 can control to supply power from the power supply unit 195 to the cartridge 6 through the cartridge driving unit 196 (S910).

On the other hand, the processor 170 of the 3D printer 100 can receive the filament-related information from the memory 6b in the cartridge 6 after power-on (S915).

For example, the processor 170 of the 3D printer 100 can receive filament related information through the cartridge driving unit 196, the network interface unit 120, or the external device interface unit 130.

Specifically, the processor 170 of the 3D printer 100 receives the filament-related information through the first connecting portion 196a and the second connecting portion 198 of Fig. 9A, or receives the filament supplying speed information or the motor driving signal To be transmitted.

On the other hand, the processor 170 of the 3D printer 100 receives the filament-related information through the first connecting portion 197a and the second connecting portion 197b of Fig. 9B, or transmits the filament supplying speed information or the motor driving signal .

In order to exchange data through the network interface unit 120 or the external device interface unit 130, the processor 170 of the 3D printer 100 performs a pairing with the cartridge 6 after the power is turned on can do. After the execution of the pairing, it is possible to receive the filament-related information, or control the filament feeding speed information or the motor driving signal to be transmitted.

Next, the processor 170 of the 3D printer 100 may control to display the received filament-related information on the display 180 (S920).

For example, it is possible to control to display at least one of the remaining amount information of the filament in the cartridge 6, the material information of the filament, and the color information of the filament. By displaying such information, the user can easily recognize the information related to the filament.

Next, the processor 170 of the 3D printer 100 can control the filament feeding speed from the cartridge 6 based on the received filament-related information (S925).

For example, the filament-related information may include filament residual amount information in the cartridge 6, material information of the filament, and color information of the filament.

The processor 170 can control the supply speed of the filament cartridge 6 to vary based on the filament remaining amount information, the filament material information, and the color information of the filament.

Specifically, the processor 170 can control the supply speed of the filament cartridge 6 to be small when the remaining amount of the filament is not more than a predetermined value.

On the other hand, the processor 170 can control the supply speed of the filament cartridge 6 to vary according to the material information of the filament.

On the other hand, the processor 170 can control the supply speed of the filament cartridge 6 to vary according to the color information of the filament.

Next, the processor 170 of the 3D printer 100 determines whether the filament is output from the extrusion unit 300 (S930), and if so, the output speed of the extrusion unit 300, the filament related information , It is possible to control the filament feeding speed from the cartridge (S935).

The processor 170 of the 3D printer 100 can sense the output speed of the extrusion unit 300 using a separate sensor.

For example, an encoder (not shown) for detecting the rotation of the driving motor 312 in the filament moving part 310 is disposed, and an output speed of the extrusion part 300 is detected through an encoder (not shown) can do.

The processor 170 of the 3D printer 100 can sense the output speed of the filament in the extrusion unit 300 through the second temperature sensing unit 335 that senses the temperature of the cooling unit 330 have. For example, the sensed temperature is proportional to the output speed, so that the output speed can be calculated based on the sensed temperature gain.

On the other hand, when the filament is output from the extrusion unit 300, the processor 170 of the 3D printer 100 determines the filament supply speed from the cartridge based on the output speed and the filament related information in the extrusion unit 300 Can be controlled.

On the other hand, the processor 170 can control the feeding rate of the filament cartridge 6 in proportion to the filament output speed in the extruding section 300 when the filament is output in the extruding section 300. [

On the other hand, when the supply of the filament in the filament cartridge 6 is interrupted, the processor 170 may stop the filament output in the extruding section 300 or may control to output the filament in a certain area in the cavity.

On the other hand, the processor 170 determines whether the supply speed of the filament cartridge 6 is faster than the supply speed of the filament cartridge 6 when the filament is output from the extruding unit 300 .

11 is a flowchart showing another example of the operation method of the 3D printer according to the embodiment of the present invention.

Referring to the drawing, the processor 170 of the 3D printer 100 can extract authentication information among the filament-related information received from the cartridge 6 (S1010).

10, filament-related information stored in the memory 6b of the cartridge 6 is supplied to the 3D printer 100 (FIG. 10), when the 3D printer 100 is powered on, Lt; / RTI > to the processor 170 of FIG.

On the other hand, the processor 170 of the 3D printer 100 can confirm the activation of the cartridge on the basis of the extracted authentication information after confirming that the cartridge is genuine (S1015).

For example, when there is the activation information in the processor 170, the processor 170 can compare the extracted authentication information with the extracted authentication information to determine whether or not the cartridge 6 is a genuine article.

As another example, the processor 170 may control to transmit the extracted authentication information to an external server (not shown) through the network interface unit 120. [

The server (not shown) at this time may be a manufacturer server of the 3D printer 100 or a manufacturer server of the filament cartridge 6 for activation.

Then, the processor 170 can receive activation / non-activation information from a server (not shown).

Next, the processor 170 determines whether the activation is successful (S1020), and if so, it can control to output an authentication success message (S1025).

On the other hand, if the activation fails, the processor 170 may control to output an authentication failure message (S1035). In addition, the processor 170 may control to stop the operation (S1035). On the other hand, after the authentication failure, the genuine product purchase message may also be output.

Figs. 12A to 13F are diagrams referred to in explaining the operation method of Figs. 10 to 11. Fig. 12A to 12F are diagrams referred to in the explanation of the operation method of Fig.

First, FIG. 12A illustrates that the power-on information 1110 is displayed on the display 180. FIG.

On the other hand, the processor 170 can control to display a message 1115 indicating that information is being received from the cartridge, as shown in Fig. 12A. As a result, the user can confirm that the power is turned on and information is being received.

12B illustrates that filament color information 1120 and filament type information 1123 are displayed on the display 180. Fig. On the other hand, unlike the drawing, the color information 1120 and the filament type information 1123 of the filament may be separately displayed.

As described above, the processor 170 can set the feed rate of the filament cartridge 6 based on the filament remaining amount information, the material information of the filament, and the color information of the filament.

12C illustrates that the set cartridge feed rate information 1130 is displayed based on the type (material) information of the filament. Thus, the user can easily confirm the cartridge supply speed information.

On the other hand, the processor 170 may control the message 1135 notifying the start of 3D printing to be displayed as shown in FIG. 12C according to the 3D printing start input.

12D illustrates that when the filament output in the extruding portion is started, information 1140 indicating this is displayed.

On the other hand, the processor 170 can control to display the information 1145 on the output speed of the extrusion unit 300 as shown in Fig. 12D.

As described above, when the filament is output from the extruding section 300, the processor 170 determines whether the filament cartridge 6 is to be fed based on the filament output speed in the extruding section 300 and the filament- Can be controlled.

Fig. 12E illustrates that an example of the filament cartridge feed rate information 1150, which is set based on the filament output speed and the filament related information, is displayed on the display 180. Fig. In the drawing, it is exemplified that the filament feeding speed is delayed.

12F illustrates that another example of the feed rate information 1160 of the filament cartridge, which is set based on the filament output speed and the filament related information, is displayed on the display 180. Fig. In the drawing, it is exemplified that the filament feeding speed is increased.

Thus, the user can easily recognize the filament feeding speed of the cartridge.

13A to 13F are diagrams referred to in the description of the operation method of FIG.

First, FIG. 13A illustrates that the power-on information 1110 is displayed on the display 180. FIG.

On the other hand, the processor 170 can control to display a message 1115 indicating that information is being received from the cartridge, as shown in Fig. 13A. As a result, the user can confirm that the power is turned on and information is being received.

13B illustrates that filament color information 1120 and filament type information 1123 are displayed on the display 180. Fig. On the other hand, unlike the drawing, the color information 1120 and the filament type information 1123 of the filament may be separately displayed.

As described above, the processor 170 can extract the cartridge authentication information from the filament-related information.

13C illustrates that a message 1210 indicating the activation is displayed based on the authentication information from the extracted cartridge. Thus, the user can easily confirm that the cartridge is being activated.

13D illustrates that the activation success message 1220 at the time of successful activation is displayed.

On the other hand, after success of the activation, the processor 170 can control to display a message 1225 informing the start of 3D printing as shown in FIG. 13D.

13E illustrates that the activation failure message 1230 is displayed when the activation fails.

On the other hand, after the activation failure, the processor 170 can control to display the 3D printing stop message 1235 as shown in FIG. 13D.

On the other hand, when the 3D printing is stopped, the processor 170 may stop the filament output in the extrusion unit 300 or control the filament to be output in a certain area in the cavity.

On the other hand, the processor 170 may control to display an activation failure message 1230 and a replacement message to the genuine cartridge 1245 after the activation failure, as shown in FIG. 13F. As a result, replacement with the genuine cartridge can be induced.

Meanwhile, the operation method of the 3D printer of the present invention can be implemented as a code readable by a processor on a recording medium readable by a processor included in the 3D printer. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium that can be read by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet . In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

Claims (20)

A filament cartridge for supplying filaments;
An extruding portion for extruding the filament fed from the filament cartridge into a cavity;
An interface unit for receiving filament related information from the filament cartridge when the power is turned on;
And a processor for controlling a supply speed of the filament cartridge based on the filament-related information. The method according to claim 1,
The filament-
Filament residual quantity information in the cartridge, material information of the filament, color information of the filament,
The processor comprising:
And controls the supply speed of the filament cartridge to vary based on the filament remaining amount information, the filament material information, and the color information of the filament. The method according to claim 1,
The processor comprising:
Wherein the feeding speed of the filament cartridge is controlled based on the filament output speed in the extruding unit and the filament related information when the filament is output from the extruding unit. The method of claim 3,
The processor comprising:
Wherein the feeding speed of the filament cartridge when the power is turned on is controlled to be faster than the feeding speed of the filament cartridge when the filament is output from the extruding unit. The method of claim 3,
The processor comprising:
Wherein the feeding speed of the filament cartridge is controlled in proportion to the filament output speed in the extruding unit when the filament is output from the extruding unit. The method of claim 3,
The processor comprising:
And stops the filament output at the extruding portion or outputs the filament to a predetermined region in the cavity when the supply of the filament from the filament cartridge is interrupted. 3. The method of claim 2,
The filament-
Further comprising authentication information of the cartridge,
The processor comprising:
And to output an authentication success message when activation is confirmed based on the authentication information,
And to output an authentication failure message when the activation fails, based on the authentication information. 8. The method of claim 7,
The processor comprising:
Wherein the control unit controls to stop the molding product creating operation when the activation fails based on the authentication information. The method according to claim 1,
And a filament driving unit for controlling filament supply of the filament cartridge. The method according to claim 1,
And a filament supply device to which the filament cartridge is attached or detached. The method according to claim 1,
And a filament driving unit for controlling filament supply of the filament cartridge. The method according to claim 1,
A carriage to which the extrusion part is attached; And
And a moving part for moving the carriage,
The processor comprising:
And controls the extruding unit and the moving unit. The method according to claim 1,
The extrusion portion
A filament moving part for moving the filament to be introduced in a downward direction;
A heating unit for heating the filament moved by the filament moving unit;
A nozzle for outputting the heated filament into the cavity;
A cooling unit for cooling the filament moving unit such that heat generated by the heating unit is reduced in the filament moving unit;
And a temperature sensing unit for sensing a temperature of the heating unit. 14. The method of claim 13,
The processor comprising:
And controls the heating unit and the cooling unit based on the temperature sensed by the temperature sensing unit. 14. The method of claim 13,
The processor comprising:
And controls the moving speed of the filament moving part to decrease as the temperature of the heating part increases. 13. The method of claim 12,
The moving unit
A frame extending in a first direction;
An arm extending in a second direction intersecting the first direction on the frame, the carriage being disposed;
First and second drive motors disposed on the frame and spaced apart from each other;
A timing pulley coupled to the drive motor;
A plurality of idlers disposed on the arms; And
And a timing belt extending through the timing pulley and the plurality of idlers. 17. The method of claim 16,
The moving unit includes:
Wherein when the first and second driving motors rotate in the same direction, the arm is moved in the first direction, and when the first and second driving motors rotate in opposite directions, In the second direction. 17. The method of claim 16,
The moving unit includes:
Wherein the carriage is moved in the second direction while moving the arm in the first direction when either one of the first and second driving motors is operated. 13. The method of claim 12,
The moving unit moves the carriage into at least an x, y plane,
And a second moving part for moving the carriage in at least the z-axis direction. 13. The method of claim 12,
And a second moving part for moving the plate in the cavity in the z-axis direction, in which the molding produced by the filament output from the extruding part is disposed.

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