CN111300817B - Photocuring 3D printer and 3D printing method - Google Patents
Photocuring 3D printer and 3D printing method Download PDFInfo
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- CN111300817B CN111300817B CN202010201836.3A CN202010201836A CN111300817B CN 111300817 B CN111300817 B CN 111300817B CN 202010201836 A CN202010201836 A CN 202010201836A CN 111300817 B CN111300817 B CN 111300817B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000010146 3D printing Methods 0.000 title claims abstract description 21
- 238000000016 photochemical curing Methods 0.000 title claims description 9
- 238000007639 printing Methods 0.000 claims abstract description 127
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 230000007797 corrosion Effects 0.000 claims description 18
- 238000005260 corrosion Methods 0.000 claims description 18
- 230000005484 gravity Effects 0.000 claims description 9
- 238000009877 rendering Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000003028 elevating effect Effects 0.000 description 10
- 238000001723 curing Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
本发明涉及3D打印技术领域，具体涉及一种光固化3D打印机及3D打印方法，光固化3D打印机包括装有光敏树脂的容器，容器底部为透光薄膜，容器底部设置有光机，容器上方设置有打印平台，打印平台通过平台支架连接有升降机构，升降机构连接有用于控制升降速度的打印控制模块，平台支架设置有用于检测打印平台压力的压力传感器，升降机构连接有用于检测升降机构移动位移的位移检测件，压力传感器及位移检测件均与打印控制模块连接，提供一种既能够免除打印平台往复运动，又可以控制透光薄膜变形程度，提高打印成功率的光固化3D打印机及3D打印方法。
The invention relates to the technical field of 3D printing, in particular to a light-curing 3D printer and a 3D printing method. The light-curing 3D printer comprises a container filled with photosensitive resin, the bottom of the container is a light-transmitting film, the bottom of the container is provided with a light machine, and the top of the container is arranged There is a printing platform, the printing platform is connected with a lifting mechanism through the platform bracket, the lifting mechanism is connected with a printing control module for controlling the lifting speed, the platform bracket is provided with a pressure sensor for detecting the pressure of the printing platform, and the lifting mechanism is connected with a lifting mechanism for detecting the movement displacement of the lifting mechanism. The displacement detection part, the pressure sensor and the displacement detection part are all connected with the printing control module, providing a light-curing 3D printer and 3D printing that can not only avoid the reciprocating motion of the printing platform, but also control the deformation degree of the light-transmitting film and improve the printing success rate. method.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a photocuring 3D printer and a 3D printing method.
Background
The 3D printing is a forming process, and a three-dimensional model is manufactured in a layered stacking mode. A common photocuring 3D printing technology on the market is called DLP, and a ray apparatus irradiates bottom layer resin for a period of time each time, closes the ray apparatus after the resin is cured, and a printing platform is lifted and then descends to a position slightly higher than the original position, and the ray apparatus is opened to irradiate for next layer curing. The reason why the platform needs to move up and down is to fill the liquid viscous material to the solidification surface, and this action is time-consuming, resulting in slower printing speed of the conventional DLP.
Although reciprocating motion is avoided, the platform of the existing high-speed DLP printer is in a slow and uniform-speed rising state from the beginning, and part printing can be completed as long as the rising process and the printing surface playing are synchronous. However, this method is not suitable for printing a model in which a continuous large-area slice exists, and printing failures often occur. The reason for printing failure is that the central material of the large-area slice is difficult to flow into and solidify, and when the printing platform is lifted, the lower transparent film is pulled by the drawing force to deform, so that the solidified surface is lifted. When the deformation degree of the light-transmitting film is too large, the film can rebound instantly, the plane of the light-transmitting film is suddenly separated from the cured surface, and a newly cured material on the film cannot be glued with a printing body, so that printing faults are caused to cause printing failure.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the photocuring 3D printer and the 3D printing method can avoid the reciprocating motion of a printing platform, control the deformation degree of a light-transmitting film and improve the printing success rate.
The technical scheme adopted by the invention for solving the technical problem is as follows: photocuring 3D printer is including the container that is equipped with photosensitive resin, the container bottom is the printing opacity film, the container bottom is provided with the ray apparatus, and the container top is provided with print platform, print platform has elevating system through platform leg joint, and elevating system electric connection has the printing control module who is used for controlling the elevating speed, platform leg joint is provided with the pressure sensor who is used for detecting print platform pressure, and elevating system is connected with the displacement detection piece that is used for detecting elevating system removal displacement, pressure sensor and displacement detection piece all with printing control module electric connection.
According to the invention, the total stress of the printing platform in the printing process is detected by the pressure sensor, the drawing force which is the deformation of the light-transmitting film after the self gravity of the printing platform is removed, and the printing control module adjusts the lifting speed of the lifting mechanism in real time according to the magnitude of the drawing force, so that the lifting platform is ensured to rise all the time to avoid reciprocating motion, and the light-transmitting film cannot rebound due to too large deformation degree, and the success rate of printing is improved.
The lifting mechanism comprises a linear rail and a lead screw parallel to the rail of the linear rail, the platform support moves along the linear rail and is in threaded connection with the lead screw, and the lead screw is connected with a driving motor which is electrically connected with the printing control module.
The displacement detection piece is a coded disc, the coded disc is connected with a rotating shaft of the driving motor, and the coded disc is electrically connected with the printing control module.
A 3D printing method, comprising the steps of:
force measurement: setting an expected stress S of the transparent film, calculating an actual die drawing force F of the transparent film in real time, and entering a speed adjusting step;
a speed adjusting step: if F is less than or equal to S, the printing platform keeps the current speed to continue lifting, if F is more than S, the lifting speed of the current printing platform is reduced, and the step of cross section rendering is carried out;
a cross section rendering step: calculating the current height H of the printing platform, slicing according to the current height H, carrying out image processing operation on the slices, and entering a printing completion step;
a printing completion step: and setting the height L of the printing platform after the complete model is printed, judging the size relationship between H and L, finishing printing if H is larger than L, and otherwise, entering a force measuring step.
The force measuring step comprises the following substeps:
1-1): calculating the gravity G of the printing platform;
1-2): the pressure sensor reads the current pressure N, and the actual die drawing force F of the light-transmitting film is the difference between the current pressure N and the gravity G of the printing platform. In the printing process, when the printing platform is lifted and pulled out, the pressure detected by the pressure sensor is the sum of the detected gravity G of the printing platform and the pulling force which is reacted with the pulling force and is applied to the printing platform during the pulling out, so that the pulling force F of the transparent film is N-G;
reducing the lifting speed of the current printing platform comprises the following substeps:
2-1): setting an expected lifting speed A of the printing platform, and calculating an actual lifting speed V of the printing platform;
2-2) the printing control module calculates and adjusts the value range of the lifting speed V of the printing platform to be more than or equal to 0 and less than or equal to A.
And the printing control module calculates and adjusts the lifting speed V of the printing platform by adopting a PID algorithm.
The calculation formula of the actual lifting speed V of the printing platform is as follows:
V＝D+P*ΔF+I*∫ΔF+D*dΔF；
wherein Δ + ═ S-F; d is the actual lifting speed of the last time, and in the initial state, D is 0; p is the deviation ratio, I is the integral, D is the derivative, the value of P, I, D is set computationally based on a PID algorithm. The PID algorithm is a closed-loop control method, which can effectively correct the deviation of the controlled object, so that the controlled object reaches a stable state. In the printing process, the different areas of the printing sections lead to different mold drawing forces applied to the transparent film during mold drawing, and if the mold drawing force of the transparent film is required to be kept to fluctuate within a set range, the lifting speed of the printing platform needs to be adjusted to adapt to the different mold drawing forces. The lifting speed of the printing platform depends on the rotation speed of the lead screw 602, the lead screw 602 is driven by the driving motor 603 to rotate, so that the printing control module calculates and adjusts the pulse frequency input to the driving motor through a PID algorithm to further adjust the rotation speed of the driving motor, and the stress of the light-transmitting film is kept relatively constant.
The current height H of the printing platform is equal to the geometric displacement of the rotating shaft of the driving motor measured by the code disc.
The image processing operation is an image erosion process comprising the sub-steps of:
if V is equal to A, the image corrosion treatment is not carried out;
if V is 0, carrying out image corrosion processing with corrosion pixels of K x K, wherein K is a natural number;
and if V is not less than 0 and not more than A, carrying out image corrosion treatment with the corrosion pixel B, wherein B is int (K (A-V)/A).
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a photocuring 3D printer and a 3D printing method, which are characterized in that the magnitude of a drawing force is monitored and calculated in real time through a pressure sensor, the rotating speed of a motor is adjusted according to the change of the drawing force, the lifting speed of a printing platform is timely adjusted, the drawing force is guaranteed to be maintained in a relatively constant range, the deformation degree of a light-transmitting film is indirectly controlled, the light-transmitting film is prevented from rebounding due to overlarge stress, the reciprocating motion of the printing platform can be avoided, the printing efficiency is improved, the printing time is saved, and the printing success rate can be improved. And in the printing process, corresponding image corrosion treatment is carried out on each layer of slices according to the speed of the printing platform, so that the size change caused by different exposure diffusion due to speed change is avoided, and the printing effect is also ensured.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a schematic diagram of the structure of the invention.
Fig. 4 is a circuit diagram of the present invention.
Fig. 5 is a flow chart of the present invention.
In the figure: 1. a container; 2. a light-transmitting film; 3. an optical machine; 4. a printing platform; 5. a platform support; 6. a lifting mechanism; 601. a wire track; 602. a lead screw; 603. a drive motor; 7. a pressure sensor; 8. and (4) encoding the disc.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
example 1
As shown in fig. 1 to 5, the photocuring 3D printer includes container 1 that is equipped with photosensitive resin, container 1 bottom is printing opacity film 2, container 1 bottom is provided with ray apparatus 3, container 1 top is provided with print platform 4, print platform 4 is connected with elevating system 6 through platform support 5, 6 electric connection of elevating system has the printing control module who is used for controlling elevating speed, platform support 5 is provided with pressure sensor 7 that is used for detecting print platform 4 pressure, elevating system 6 is connected with the displacement detection spare that is used for detecting elevating system removal displacement, the displacement detection spare is code wheel 8, pressure sensor 7 and displacement detection spare all with printing control module electric connection.
The lifting mechanism comprises a linear rail 601 and a lead screw 602 parallel to the track of the linear rail 601, the platform support 5 moves along the linear rail 601 and is in threaded connection with the lead screw 602, the lead screw 602 is connected with a driving motor 603, and the driving motor 603 is electrically connected with the printing control module. The code wheel 8 is connected to the rotation axis of driving motor 603, and 8 electric connections of code wheel print control module.
Example 2
As shown in fig. 1 to 5, based on the 3D printer in embodiment 1, the 3D printing method includes the steps of:
force measurement: setting an expected stress S of the transparent film, wherein the expected stress S is the maximum drawing force which can be borne by the transparent film 2 and cannot fall off and rebound from a curing surface, calculating the actual drawing force F of the transparent film in real time, and entering a speed adjusting step; the force measuring step comprises the following substeps:
1-1: calculating the gravity G of the printing platform 4;
1-2: the pressure sensor 7 reads the current pressure N, and the actual die-drawing force F of the transparent film 2 is the difference between the current pressure N and the gravity G of the printing platform 4. In the printing process, when the printing platform 4 rises and is subjected to die drawing, the pressure detected by the pressure sensor 7 is the pulling force which is mutually reacted with the die drawing force and is borne by the printing platform 4 when the self gravity G of the printing platform 4 is detected and the die drawing is carried out, so that the die drawing force F of the light-transmitting film 2 is equal to N-G.
A speed adjusting step: if the F is less than or equal to S, the printing platform maintains the current speed to continuously lift;
if F is larger than S, reducing the lifting speed of the current printing platform, wherein the reducing of the lifting speed of the current printing platform comprises the following substeps:
2-1): setting an expected lifting speed A of the printing platform, wherein the expected lifting speed A is the maximum lifting speed of the printing platform 4 when the light-transmitting film 2 is ensured not to fall off from the curing surface, and calculating the actual lifting speed V of the printing platform; and the printing control module calculates and adjusts the lifting speed V of the printing platform by adopting a PID algorithm. The calculation formula of the actual lifting speed V of the printing platform is as follows:
V＝D+P*ΔF+I*∫ΔF+D*dΔF；
wherein Δ F ═ S-F; d is the actual lifting speed of the last time, and in the initial state, D is 0; p is the deviation ratio, I is the integral, D is the derivative, the value of P, I, D is set computationally based on a PID algorithm. The PID algorithm is a closed-loop control method, can effectively correct the deviation of a controlled object so as to enable the controlled object to reach a stable state, belongs to the prior art for the PID control principle and PID parameter adjustment, and is not improved in the application, so that the details are not repeated.
In the printing process, the different areas of the printing cross sections lead to different mold drawing forces applied to the transparent film 2 during mold drawing, and if the mold drawing force of the transparent film 2 is to be kept fluctuating within a set range, the lifting speed of the printing platform 4 needs to be adjusted to adapt to the different mold drawing forces. The pressure sensor 7 detects and calculates the drawing force F of the light-transmitting film in real time, so that the lifting speed V of the printing platform 4 is calculated and adjusted. The lifting speed of the printing platform 4 depends on the rotation speed of the lead screw 602, and the lead screw 602 is driven by the driving motor 603 to rotate, so that the printing control module calculates and adjusts the pulse frequency input to the driving motor 603 through a PID algorithm to further adjust the rotation speed of the driving motor 603, so that the stress of the transparent film 2 is kept in a relatively constant range.
2-2) the printing control module calculates and adjusts the value range of the lifting speed V of the printing platform to be more than or equal to 0 and less than or equal to A.
And entering a section rendering step.
A cross section rendering step: and calculating the current height H of the printing platform, slicing according to the current height H, and performing image processing operation on the slices, wherein the current height H of the printing platform 4 is equal to the geometric displacement of the rotating shaft of the driving motor 603 measured by the code wheel 8. The current height of the printing platform 4 is measured through the coded disc 8, so that the model to be printed is sliced, and the synchronization of the platform and the projection of the optical machine can be strictly kept under the condition of the speed change of the printing platform 4. The image processing operation is image corrosion processing, because the photosensitive resin has certain light transmittance, if the lifting speed of the printing platform 4 is too slow, partial light can be diffused, so that the curing area is slightly larger than an actually printed model, and the problem is avoided by performing corrosion operation on the current projected image, and the method comprises the following substeps:
if V is equal to A, the image corrosion treatment is not carried out;
if V is 0, carrying out image corrosion processing with corrosion pixels of K x K, wherein K is a natural number;
and if V is not less than 0 and not more than A, carrying out image corrosion treatment with the corrosion pixel B-int (K-A-V/A).
The printing completion step is entered.
A printing completion step: and setting the height L of the printing platform after the complete model is printed, judging the size relationship between H and L, finishing printing if H is larger than L, and otherwise, entering a force measuring step.
Claims (7)
1. The 3D printing method is characterized in that a photocuring 3D printer comprises a container (1) filled with photosensitive resin, wherein a light-transmitting film (2) is arranged at the bottom of the container (1), a light machine (3) is arranged at the bottom of the container (1), a printing platform (4) is arranged above the container (1), the printing platform (4) is connected with a lifting mechanism (6) through a platform support (5), the lifting mechanism (6) is electrically connected with a printing control module for controlling lifting speed, the platform support (5) is provided with a pressure sensor (7) for detecting the pressure of the printing platform (4), the lifting mechanism (6) is connected with a displacement detection piece for detecting the movement displacement of the lifting mechanism, and the pressure sensor (7) and the displacement detection piece are both electrically connected with the printing control module;
the 3D printing method comprises the following steps:
force measurement: setting an expected stress S of the transparent film (2), calculating an actual drawing force F of the transparent film (2) in real time, and entering a speed adjusting step;
a speed adjusting step: if the F is less than or equal to S, the printing platform (4) maintains the current speed to continue lifting, if the F is more than S, the lifting speed of the current printing platform (4) is reduced, and the cross section rendering step is carried out; reducing the lifting speed of the current printing platform (4) comprises the following substeps:
2-1): setting an expected lifting speed A of the printing platform (4), and calculating an actual lifting speed V of the printing platform (4);
2-2): the printing control module calculates and adjusts the value range of the lifting speed V of the printing platform (4) to be more than or equal to 0 and less than or equal to A;
a cross section rendering step: calculating the current height H of the printing platform (4), slicing according to the current height H, performing image processing operation on the slices, and entering a printing completion step; the image processing operation is an image erosion process comprising the sub-steps of:
if V is equal to A, the image corrosion treatment is not carried out;
if V is 0, carrying out image corrosion processing with corrosion pixels of K x K, wherein K is a natural number;
if V is more than or equal to 0 and less than or equal to A, carrying out image corrosion treatment with the corrosion pixels as B & ltB & gt, wherein B & ltint (K & ltA-V)/A);
a printing completion step: and setting the height L of the printing platform (4) after the complete model is printed, judging the size relationship between H and L, if H is larger than L, finishing printing, and otherwise, entering a force measuring step.
2. 3D printing method according to claim 1, wherein the force measuring step comprises the following sub-steps:
1-1): calculating the gravity G of the printing platform (4);
1-2): the pressure sensor (7) reads the current pressure N, and the actual die drawing force F of the light-transmitting film (2) is the difference between the current pressure N and the gravity G of the printing platform (4).
3. 3D printing method according to claim 1, characterized in that the printing control module uses a PID algorithm to calculate the lifting speed V of the regulated printing platform (4).
4. 3D printing method according to claim 3, characterized in that the actual lifting speed V of the printing platform (4) is calculated by the formula:
V＝D+P*ΔF+I*∫ΔF+D*dΔF；
wherein Δ F ═ S-F; d is the actual lifting speed of the last time, and in the initial state, D is 0; p is the deviation ratio, I is the integral, D is the derivative, the value of P, I, D is set computationally based on a PID algorithm.
5. 3D printing method according to claim 1, characterized in that the current height H of the printing platform (4) is equal to the geometric displacement of the rotation axis of the drive motor (603) measured by the code wheel (8).
6. The 3D printing method according to claim 1, wherein the lifting mechanism comprises a linear rail (601) and a lead screw (602) parallel to a track of the linear rail (601), the platform support (5) moves along the linear rail (601) and is in threaded connection with the lead screw (602), the lead screw (602) is connected with a driving motor (603), and the driving motor (603) is electrically connected with the printing control module.
7. The 3D printing method according to claim 6, wherein the displacement detecting member is a code wheel (8), a rotating shaft of the driving motor (603) is connected with the code wheel (8), and the code wheel (8) is electrically connected with the printing control module.
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| CN202010201836.3A CN111300817B (en) | 2020-03-20 | 2020-03-20 | Photocuring 3D printer and 3D printing method |
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| CN113119455B (en) * | 2021-04-29 | 2023-06-23 | 杭州捷诺飞生物科技股份有限公司 | 3D printing equipment and 3D printing system |
| CN113432631B (en) * | 2021-07-16 | 2025-07-11 | 深圳技术大学 | Optical fiber sensor based on polymer film and polymer microcavity and its manufacturing method |
| WO2023185930A1 (en) * | 2022-03-31 | 2023-10-05 | 深圳市纵维立方科技有限公司 | Printing control method, photocuring three-dimensional printer and readable storage medium |
| CN114770951B (en) * | 2022-03-31 | 2024-08-20 | 深圳市纵维立方科技有限公司 | Printing control method and device and 3D printer |
| CN115157664B (en) * | 2022-07-20 | 2023-09-01 | 杭州喜马拉雅信息科技有限公司 | Pressure intelligent control type photo-curing 3D printer |
| CN116423843A (en) * | 2023-04-04 | 2023-07-14 | 深圳市纵维立方科技有限公司 | 3D printer control method, storage medium and 3D printer |
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| CN110893682A (en) * | 2018-09-11 | 2020-03-20 | 三纬国际立体列印科技股份有限公司 | Method of Dynamically Adjusting Lifting Parameters |
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Effective date of registration: 20230824 Address after: 241000 Chungu 3D Printing Industrial Park, Fanchang Economic Development Zone, Fanchang County, Wuhu City, Anhui Province Patentee after: Anhui Guangli Intelligent Technology Co.,Ltd. Address before: 272071 University Park, Jining high tech Zone, No. 16, Haichuan Road, high tech Zone, Jining City, Shandong Province Patentee before: JINING University |