KR102215063B1 - 3d printer comprising light guide part contacted to photo curable material in vat - Google Patents

Abstract

The present invention, a pedestal having a horizontal surface on the top side; A water tank having a resin housing and resin molding aids sequentially stacked on a horizontal surface of the pedestal; Actuators fixed to the horizontal surface of the pedestal in a column shape and positioned on both sides of the water tank; And a light irradiation unit having a light guide unit and a light output unit sequentially positioned on the resin molding aid while being inserted into the water tank so as to be able to move up and down relative to the individual actuators. Disclosed is a 3D printer including a light guiding portion in contact with.

Description

A 3D printer including a light guide part contacting a photocurable liquid substance in a water tank {3D PRINTER COMPRISING LIGHT GUIDE PART CONTACTED TO PHOTO CURABLE MATERIAL IN VAT}

The present invention relates to a 3D printer including a light guiding part in contact with a photocurable liquid material in a water bath to extract a three-dimensional molded article from a photocurable liquid substance filled in a water bath using laser light or ultraviolet light.

In general, a 3D printer refers to an apparatus for manufacturing a three-dimensional molded article using additive manufacturing technology (AMT), away from methods such as milling, cutting, and assembling. The 3D printer is classified into a stereo lithography apparatus (SLA) method or a digital light processing (DLP) method according to the technology of light irradiation in the tank, and a bottom-up method or a bottom-up method according to the moving direction of the working plate in the tank. It is classified as a top-down method.

Even if the 3D printer is installed in a narrow space outside of the existing manufacturing line, it is suitable for small-scale production of a variety of products based on various additive manufacturing technologies and can be customized, thus attracting much attention in the medical field. Meanwhile, the three-dimensional molded article is formed by irradiating a photocurable liquid material in a water tank with laser light or ultraviolet light and curing a photocurable material in an SLA type or DLP type 3D printer. Here, the photocurable liquid material is a resin that includes a photo initiator and reacts to the light when irradiated with laser light or ultraviolet light to cause a phase change to a solid state.

Hereinafter, in order to limit the invention, in the description of the prior art, attention will be given only to a bottom-up method or a top-down type 3D printer. First, in FIG. 1, a bottom-up 3D printer 64 is disclosed. The bottom-up type 3D printer 64 has a main body box 14, a water tank 26, an operating mechanism 34, and a working plate 44. The main body box 14 has a light irradiation tool 54 when viewed internally, and supports a water tank 26 and an operating mechanism 34 when viewed externally. The water tank 26 has a photocurable liquid material (23 in Fig. 2).

The operating mechanism 34 guides the vertical movement (D11) of the working plate (44). That is, while the photocurable liquid material 23 of the water tank 26 is irradiated with laser light or ultraviolet light of the light irradiation tool 54, the working plate 44 moves from the lower side of the water tank 26 to the upper side. A three-dimensional molded object (not shown in the drawing) facing the bottom of the water tank 26 is supported. However, the bottom-up 3D printer 64 drops the three-dimensional molded object from the working plate 44 under the influence of gravity during the vertical movement (D11) of the working plate 44 inside and outside the water tank 26. I can make it.

In addition, during the vertical movement (D11) of the working plate 44 in and out of the water tank 26, the water tank 26 flows the photocurable liquid 23 to the main body box 14 to be below the water tank 26. In the absence of the light-transmitting glass (not shown in the drawing), a stain is made on the light-transmitting glass (not shown in the drawing), or in the absence of the light-transmitting glass, a stain is created on the light irradiation tool 54 under the water tank 26, thereby making the function of the light irradiation tool 54 poor . Next, in Fig. 2, a top-down 3D printer 68 is disclosed. The top-down type 3D printer 68 has a main body box 18, a water tank 29, an operating mechanism 38, and a working plate 48.

The main body box 18 supports the water tank 29 and the operating mechanism 38. The operation mechanism 38 supports the working plate 48 and the light irradiation tool 58. In addition, the operating mechanism 38 guides the vertical movement (D12) of the working plate (48). That is, during irradiation of laser light or ultraviolet light from the light irradiation tool 58 to the photocurable liquid material 23 of the water tank 29, the working plate 48 moves from the upper side to the lower side of the water tank 29 A three-dimensional molded object (not shown in the drawing) facing the opening of the water tank 29 is supported.

However, the top-down type 3D printer 68 is formed using a photocurable liquid material 23 on the working plate 48 during the vertical movement (D12) of the working plate 48 in the water tank 29. It is difficult to maintain the stacking height, and it is difficult to output the three-dimensional molded article in a desired shape due to the severe fluctuation of the photocurable liquid material 23 on the working plate 44. On the other hand, the bottom-up type or top-down type 3D printer is similarly disclosed as a prior art in the name of the invention in Korean Patent Laid-Open Publication No. 10-2019-0055036, “3D printer device using an ultraviolet curing material”. have.

Korean Patent Application Publication No. 10-2019-0055036

The present invention was conceived to solve the conventional problem, and concerns about falling of a three-dimensional molded object from a working plate in a bottom-up method, a concern about leakage of a photocurable liquid substance from a water tank, and a view on the working plate in a top-down method. A 3D printer including a light guiding part in contact with the photocurable liquid material in a water tank is suitable for eliminating the concern of uncontrolling the height of the molding lamination using a chemical conversion liquid material and the fear of severe fluctuation of the photocurable liquid material on the working plate. It has its purpose to provide.

A 3D printer including a light guide unit in contact with a photocurable liquid material in a water tank according to the present invention includes: a pedestal having a horizontal surface on the top side; A water tank (vat) having a resin receiving housing and resin molding aids sequentially stacked on the horizontal surface of the pedestal; An actuator fixed to the horizontal surface of the pedestal in a column shape and positioned on both sides of the water tank; And a light irradiation unit inserted into the water tank and having a light guide part and a light output part sequentially positioned on the resin molding aid while being coupled to the individual actuator so as to be able to move up and down. Including, the light irradiation unit, when intermittently irradiating the printing light to the photocurable liquid material of the resin housing housing, the photocurable liquid on the resin molding auxiliary tool so as to pass through the light guide unit starting from the light output unit After the printing light is brought into contact with a material in a layer unit of a predetermined area, the photocurable liquid material is cured in layers for each light irradiation time, so that a three-dimensional molded product may be output from the photocurable liquid material on the resin molding aid.

The water tank may be attached to or attached to the pedestal through the resin receiving housing or fixed to the pedestal.

The resin receiving housing is composed of a lower container and an upper container, and the lower container and the upper container are sequentially stacked on the pedestal, so that the concave shape gradually decreases from the upper container toward the lower container when viewed internally. It has a plurality of protrusions positioned near the lower container and fixed to the bottom of the upper container, and may have a convex shape from the upper container toward the lower container when viewed externally.

The lower container and the upper container are formed in a cylindrical shape and are opened toward the opposite side of the pedestal, have a size larger than that of the lower container in the upper container, and pass through the central region of the upper container through the lower container. , It may be positioned along the uppermost circumference of the lower container through the upper container and fixed to the lower container.

The resin molding aid may include: an output plate positioned on the bottom of the lower container to support the three-dimensional molded object while having a plurality of flow guide holes; A suspension rod positioned around the output plate in the same number as the protrusions and fixed to the output plate and extending from the output plate along a side wall of the lower container to reach the upper container; And a hook member formed integrally with the suspension rod, starting from the suspension rod and extending from the upper container toward the protrusion, covering the protrusion through a hook hole, and fittingly coupled to the protrusion.

The suspension rod may extend from the output plate toward the bottom of the output plate inside the resin receiving housing to contact the bottom of the resin receiving housing.

The individual actuator has a guide rod that is positioned on an individual side of both sides of the light irradiation unit and is fixed to the light output unit while being parallel to the horizontal plane of the pedestal, and along the individual actuator through the guide rod The light output unit and the light guide unit may move up and down.

The light output unit and the light guide unit may be detachable from each other or may be firmly fixed to each other.

The light output unit includes a laser light source and a galvanometer, which is a reflective mirror, in order to implement a 3D stereo lithography apparatus (SLA) printing method, or a 3D digital light processing (DLP) printing method. In order to implement the light, a DLP projector, a digital mirror device (DMD), and a lens may be included.

When intermittently irradiating 3D SLA or 3D DLP printing printing light to the photocurable liquid material of the resin housing through the light output unit, the light guide unit may include an end contacting the photocurable liquid material at the light guide unit. Through the pressing of the photocurable liquid material, the photocurable liquid material may be left between the resin molding auxiliary tool and the light guide unit in a layer unit of a molding stack height.

The light guiding portion is a transparent member having a hollow shape and having an opaque wall that obstructs transmission of light along the length direction of the light guiding portion, and closing the opening of the light guiding portion at the end of the light guiding portion to transmit light And, the transparent member may include transparent glass, or a release film and transparent glass sequentially laminated.

A 3D printer including a light guide unit in contact with a photocurable liquid substance in the water tank according to the present invention includes a water tank using a resin housing housing and a resin molding aid that are sequentially stacked and bonded to each other. And, after filling the water tank with a photocurable liquid substance, while the photocurable liquid substance in the water tank is photocured by irradiating the print light to the water tank, a three-dimensional molded object is output on the resin molding aid, so in the bottom-up method of the prior art The fear of falling of the three-dimensional molded object from the working plate can be eliminated.

A 3D printer including a light guide unit in contact with a photocurable liquid substance in a water tank according to the present invention has a'T'-shaped resin housing housing in the water tank, and a resin molding aid is coupled to the central area of the resin housing housing. The resin housing is filled with a photo-curable liquid material, and the resin molding aid is immersed in the photo-curable liquid material. After inserting the light irradiation unit into the water tank, while the photo-curable liquid material is irradiated with the print light of the light irradiation unit, Since the resin is sufficiently confined through the shape of the resin housing housing, the risk of leakage of the photocurable liquid substance from the water tank in the bottom-up method of the prior art can be eliminated.

A 3D printer including a light guide unit in contact with a photocurable liquid substance in a water tank according to the present invention includes a resin receiving housing and a resin molding aid that are sequentially stacked in the water tank, and after filling the water tank with a photocurable liquid substance , By inserting the light irradiation unit into the water tank, make the resin molding aid and the light irradiation unit face each other, and while irradiating the print light of the light irradiation unit to the photocurable liquid material, use the light irradiation unit to see the sight on the resin molding aid. Since the three-dimensional molding is output from the photocurable liquid material while maintaining the molding stack height by pressing the chemical conversion liquid substance, a photocurable liquid substance is used on the working plate in the top-down method of the prior art to eliminate the concern of fine adjustment of the molding stack height. I can make it.

A 3D printer including a light guide unit in contact with a photocurable liquid material in a water tank according to the present invention is to fill a photocurable liquid material in a resin accommodation housing in the water tank to immerse the resin molding aid in the photocurable liquid material, Through the insertion of the irradiation unit, the resin molding aid and the light irradiation unit face each other, and while the photocurable liquid material is irradiated with the print light of the light irradiation unit, the light irradiation unit is used on the resin molding aid to remove the photocurable liquid material. Because of the pressing, it is possible to eliminate the fear of severe fluctuation of the photocurable liquid substance on the working plate in the top-down method of the prior art.

1 is a perspective view schematically showing a bottom-up type 3D printer according to the prior art.
2 is a perspective view schematically showing a top-down 3D printer according to the prior art.
3 is a perspective view schematically showing a 3D printer including a light guide unit in contact with a photocurable liquid material in a water tank according to the present invention.
4 is a cross-sectional view schematically showing a coupling relationship between the water tank of FIG. 3 and the light irradiation unit when viewed from the side.
5 is a cross-sectional view showing in detail the coupling relationship between the water tank of FIG. 4 and the light irradiation unit.
6 is a plan view showing the water tank in detail when viewed in a plan view in FIG. 3.
7 is a perspective view showing in detail the resin molding aid of FIG. 5 or 6.
8 is a perspective view showing the light irradiation unit of FIG. 3.
9 is a cross-sectional view showing a light guide in FIG. 8.
10 is a cross-sectional view showing a modified example of the light guide of FIG. 9.
11 is a schematic diagram showing irradiation of print light from a light output unit toward a light guide unit in the light irradiation unit of Fig. 8.
12 to 14 are schematic diagrams illustrating a method of operating a 3D printer including a light guide unit in contact with a photocurable liquid material in the water tank of FIG. 3.

For a detailed description of the present invention to be described later, reference is made to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail enough to enable a person skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if appropriately described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. In the drawings, similar reference numerals refer to the same or similar functions over several aspects, and the length, area, thickness, and the like may be exaggerated and expressed for convenience.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to enable those skilled in the art to easily implement the present invention.

3 is a perspective view schematically showing a 3D printer including a light guide part in contact with a photocurable liquid material in a water tank according to the present invention, and FIG. 4 is a side view of a coupling relationship between the water tank and the light irradiation unit of FIG. 3 It is a schematic cross-sectional view, and FIG. 5 is a cross-sectional view showing in detail the coupling relationship between the water tank of FIG. 4 and the light irradiation unit.

In addition, FIG. 6 is a plan view showing in detail the water tank in FIG. 3, FIG. 7 is a perspective view showing in detail the resin molding aid of FIG. 5 or 6, and FIG. 8 is a light irradiation unit of FIG. Is a perspective view showing.

In addition, FIG. 9 is a cross-sectional view showing a light guide part in FIG. 8, FIG. 10 is a cross-sectional view showing a modified example of the light guide part of FIG. 9, and FIG. 11 is a print from the light output part to the light guide part in the light irradiation unit of FIG. It is a schematic diagram showing light irradiation.

3 to 11, a 3D printer 230 including a light guide unit in contact with a photocurable liquid material in a water tank according to the present invention includes a pedestal 100, a vat 150, and an actuator. (actuator) 160 and a light irradiation unit 210. The pedestal 100 has a horizontal surface on the top side of the pedestal 100. Although the pedestal 100 has a square shape, it may be shown in other shapes. The pedestal 100 may be hollow or non-hollow.

The water tank 150 is located on the horizontal surface of the pedestal 100 and has a resin housing (120 in FIG. 5) and a resin molding aid (140 in FIG. 5) that are sequentially stacked. The water tank 150 may be attached to or attached to the pedestal 100 through the resin receiving housing 120 or fixed to the pedestal 100. The resin receiving housing 120 includes a lower container 113 and an upper container 119.

The lower container 113 and the upper container 119 are sequentially stacked on the pedestal 100 to form a concave shape gradually decreasing from the upper container 119 toward the lower container 113 when viewed internally. It is located near the container 113 and has a plurality of protrusions 116 fixed to the bottom of the upper container 119, and has a convex shape from the upper container 119 toward the lower container 113 when viewed externally.

In more detail, the lower container 113 and the upper container 119 are formed in a cylindrical shape and are opened toward the opposite side of the pedestal 100, and are larger in size than the lower container 113 in the upper container 119 It passes through the central region of the upper container 119 through the lower container 113, and is positioned along the uppermost circumference of the lower container 113 through the upper container 119 to be fixed to the lower container 113. .

The resin molding aid 140 includes an output plate 132, a suspension rod 134, and a hook member 138. The output plate 132 may be positioned on the bottom of the lower container 113 to support a three-dimensional molded article (250 of FIG. 13 or 14) while having a plurality of flow guide holes (131 of FIG. 7 ). The suspension rods 134 are positioned in the same number as the protrusions 116 around the output plate 132 and are fixed to the output plate 132 and extend from the output plate 132 along the side wall of the lower container 113 It reaches the upper container 119.

The hanger member 138 is formed integrally with the suspension rod 134, starting from the suspension rod 134 and extending from the upper container 119 toward the protrusion 116, while the protruding portion 116 is inserted into the hook hole 136. Covered through the protrusion 116 and the fitting coupling. Here, the suspension rod 134 extends from the output plate 132 toward the bottom of the output plate 132 from the inside of the lower container 113 of the resin receiving housing 120 to the bottom of the resin receiving housing 120 Contact with

The actuator 160 is fixed to the horizontal surface of the pedestal 100 in a column shape and positioned on both sides of the water tank 150. In addition, the light irradiation unit 210 is inserted into the water tank 150 and coupled to the individual actuator 160 so as to be able to move up and down (D2), and the light is sequentially positioned on the resin molding auxiliary tool 140 It has a light guide part (180) and a light output part (200).

In more detail, the individual actuator 160 is a guide that is positioned on an individual side of both sides of the light irradiation unit 210 while being parallel to the horizontal plane of the pedestal 100 and fixed to the light output unit 200 With the rod 220, the light output unit 200 and the light guide unit 180 are vertically moved (D2 in FIG. 4 or 5) along the individual actuators 160 through the guide rod 220.

Therefore, when the water tank 150 is filled with a photocurable liquid material (240 in FIG. 12; photo curable material), the light irradiation unit 210 is applied to the photocurable liquid material 240 of the resin housing 120 During intermittent irradiation of printing light (L of FIG. 11), starting from the light output unit 200 and passing through the light guide unit 180, the photocurable liquid material 240 has a predetermined area on the resin molding auxiliary tool 140. After contacting the printing light L in a layer unit, the photocurable liquid material 240 is cured in layers for each light irradiation time, and the three-dimensional molded product 250 from the photocurable liquid material 240 on the resin molding aid 140 Can be printed.

Here, the light output unit 200 and the light guide unit 180 may be detachable from each other or may be firmly fixed to each other. The light output unit 200 includes a laser light source 190 and a galvanometer, which is a reflective mirror, to implement a 3D stereo lithography apparatus (SLA) printing type print light L, or A DLP projector 190, a digital mirror device (DMD), and a lens may be included to implement the print light L of a digital light processing (DLP) printing method.

When the light guide unit 180 intermittently irradiates the 3D SLA or 3D DLP printing type print light L to the photocurable liquid material 240 of the resin receiving housing 120 through the light output unit 200, Between the output plate 132 of the resin molding aid 140 and the end of the light guide unit 180 by pressing the photocurable liquid material 240 through the end of the light guide unit 180 in contact with the photocurable liquid material 240 The photocurable liquid material 240 is left in a layer unit of the molded stack height.

To this end, the light guide unit 180 has an opaque wall 178 that is formed in a hollow shape and blocks light transmission along the length direction of the light guide unit 180, and at the end of the light guide unit 180 It has a transparent member 174 that closes the opening of 180 and transmits light. The transparent member 174 has a transparent glass 173 alone in the light guiding portion (180 in FIG. 9) according to the embodiment of the present invention, or the light guiding portion according to a modified example of the present invention (180A in FIG. 10) It may include a release film 171 and a transparent glass 173 sequentially stacked in.

12 to 14 are schematic diagrams illustrating a method of operating a 3D printer including a light guide unit in contact with a photocurable liquid material in the water tank of FIG. 3.

12 to 14, a 3D printer 230 according to the present invention may be prepared as shown in FIG. 3. The 3D printer 230 includes a pedestal 100, a water tank 150, an actuator 160) and a light irradiation unit 210. The pedestal 100, the water tank 150, the actuator 160, and the light irradiation unit 210 have been sufficiently described in FIGS. 3 to 11.

Next, the photocurable liquid material 240 may be filled in the water tank 150. The photocurable liquid material 240 may be injected into the lower container 113 from the outside of the water tank 150 through the upper container 119 in the resin receiving housing 120 of the water tank 150. Here, the water tank 150 has a resin molding aid 140 that is fitted to the plurality of protrusions 116 in the upper container 119 and extends from the upper container 119 toward the lower container 113.

Accordingly, the photocurable liquid material 240 may surround the output plate 132 of the resin molding aid 140 in the lower container 113 and surround the suspension rod 134 of the resin molding aid 140 . Next, the light irradiation unit 210 may be inserted into the water tank 150 as shown in FIG. 3. The light irradiation unit 210 may lower the light output unit 200 and the light guide unit 180 in one direction D21 from the inside of the water tank 150 according to the guide of the actuator 160.

The light guide part 180 may contact the photocurable liquid material 240 on the output plate 132 of the resin molding auxiliary tool 140. Subsequently, the light guide unit 180 may be lowered according to the guide of the actuator 160 to press the photocurable liquid material 240 using the transparent member 174 in contact with the photocurable liquid material 240. Here, the photocurable liquid material 240 is pressed by the transparent member 174 to sufficiently fill the lower container 113 while flowing along the opaque wall 178 of the light guide unit 180 from the lower container 113 It may overflow and reach the upper container 119.

More specifically, when the transparent member 174 presses the photocurable liquid material 240, the photocurable liquid material 240 induces a plurality of flows of the output plate 132 from the resin molding aid 140 A fluid flow may be formed between the hole 131 and the plurality of suspension rods 134. Through this, the photocurable liquid material 240 maintains a molded stacking height between the output plate 132 and the transparent member 174.

Subsequently, while the transparent member 174 presses the photocurable liquid material 240, the light irradiation unit 210 is the light guide unit 180 from the laser light source or the project light source 190 of the light output unit 200 As shown in FIG. 11, the print light L may be irradiated toward the transparent member 174 of the light guide unit 180 through the opaque wall 178 of FIG. The print light L may be reflected from a reflection mirror moving along at least two of X, Y, and Z directions with respect to the horizontal plane of the pedestal 100 and irradiated onto the transparent member 174.

Subsequently, the print light L may pass through the transparent member 174 and be irradiated onto the photocurable liquid material 240. The photocurable liquid material 240 may be converted from a liquid state to a solid state on the output plate 132 in response to the print light L. In more detail, the print light L may be irradiated to the photocurable liquid material 240 positioned on the output plate 132 to output the three-dimensional molded object 250 from the photocurable liquid material 240. .

Thereafter, after the three-dimensional molded product 250 is output on the output plate 132, the light irradiation unit 210 is separated from the water tank 150 along the other direction D22, and the resin molding aid ( 140) may be continuously separated from the resin accommodation housing 120 along the other direction D22. The output plate 132 of the resin molding aid 140 supports the three-dimensional molded article 250. The three-dimensional molded article 250 may be separated from the output plate 132.

100; Pedestal, 150; water tank
160; Actuator 180; Light guide
200; Light output unit 210; Light irradiation unit
220; Guide rod, 230; 3D printer

Claims (11)

A pedestal having a horizontal surface on the top side;
A water tank (vat) having a resin receiving housing and resin molding aids sequentially stacked on the horizontal surface of the pedestal;
An actuator fixed to the horizontal surface of the pedestal in a column shape and positioned on both sides of the water tank; And
A light irradiation unit having a light guide part and a light output part sequentially positioned on the resin molding aid while being inserted into the water tank so as to be able to move up and down relative to an individual actuator. Including,
The light irradiation unit, when intermittently irradiating the printing light onto the photocurable material of the resin housing housing, starting from the light output unit and passing through the light guide unit, the photocurable on the resin molding aid After contacting the printing light in a layer unit of a predetermined area on a liquid material, the photocurable liquid material is cured in layers for each light irradiation time to output a three-dimensional molded product from the photocurable liquid material on the resin molding aid,
The resin receiving housing is composed of a lower container and an upper container,
The lower container and the upper container,
Sequentially stacked on the pedestal,
It has a plurality of protrusions that are located near the lower container and are fixed to the bottom of the upper container while forming a concave shape gradually decreasing from the upper container toward the lower container when viewed internally,
Externally viewed from the upper container toward the lower container has a convex shape,
The resin molding aid,
An output plate positioned on the bottom of the lower container to support the three-dimensional molding while having a plurality of flow guide holes;
A suspension rod positioned around the output plate in the same number as the protrusions and fixed to the output plate and extending from the output plate along a side wall of the lower container to reach the upper container; And
A hook member formed integrally with the suspension rod and extending from the suspension rod toward the protrusion from the upper container, covering the protrusion through a hook hole, and fittingly coupled to the protrusion,
The output plate,
It is supported by the suspension rod on the bottom of the lower container and spaced apart from the bottom of the lower container,
The above suspension is,
Inside the resin receiving housing,
It extends from the output plate toward the bottom of the output plate and contacts the bottom of the resin housing,
The light guide unit,
When intermittently irradiating 3D SLA or 3D DLP printing type print light to the photocurable liquid material of the resin housing housing through the light output unit,
The photocurable liquid material is formed between the output plate of the resin molding aid and the end of the light guide part by pressing the photocurable liquid material through an end of the light guide part in contact with the photocurable liquid material. Leave it as a unit,
The light guide unit,
It has an opaque wall that is made of a hollow shape and obstructs the transmission of light along the length direction of the light guide part,
Closes the opening of the light guide portion at the end of the light guide portion and has a transparent member for transmitting light,
The transparent member is a transparent glass, or a 3D printer including a light guide unit in contact with a photocurable liquid material in a water tank including a release film and transparent glass sequentially stacked.
The method of claim 1,
The water tank is a 3D printer including a light guiding unit in contact with a photocurable liquid material in the water tank, which is attached to or attached to the base through the resin receiving housing or fixed to the base.
delete The method of claim 1,
The lower container and the upper container,
It consists of a tubular shape and opens toward the opposite side of the pedestal,
Has a larger size than the lower container in the upper container,
A light guide unit that penetrates the central region of the upper container through the lower container, is located along the uppermost circumference of the lower container through the upper container and is fixed to the lower container, in contact with the photocurable liquid material in the water tank 3D printer comprising a.
delete delete The method of claim 1,
The individual actuators,
It has a guide rod that is parallel to the horizontal plane of the pedestal and is positioned on an individual side of both sides of the light irradiation unit and fixed to the light output unit,
A 3D printer comprising a light guide part in contact with a photocurable liquid material in a water tank for vertically moving the light output part and the light guide part along the individual actuators through the guide rod.
The method of claim 1,
The 3D printer comprising a light guide unit in contact with a photocurable liquid material in a water tank, wherein the light output unit and the light guide unit are detachable from each other or are firmly fixed to each other.
The method of claim 1,
The light output unit,
In order to implement the 3D SLA (stereo lithography apparatus) printing method of printing light, it includes a laser light source and a galvanometer, which is a reflective mirror,
In order to implement the 3D DLP (digital light processing) printing method of printing light, a DLP projector, a digital mirror device (DMD), and a light guide unit that is in contact with a photocurable liquid material in a water tank including a lens Included 3D printer.


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