CN114261096A - Partition exposure control method, printing method, device, equipment and medium - Google Patents
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- 238000007639 printing Methods 0.000 title claims abstract description 54
- 238000005192 partition Methods 0.000 title abstract description 13
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- 239000007788 liquid Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
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Abstract
The present disclosure relates to a divisional exposure control method, a printing method, a device, an apparatus, and a medium, the divisional exposure control method including: obtaining a plurality of layers of model slices of the 3D model; generating a print data file based on the model slice; wherein each layer of model slices comprises at least two regions; in the print data file, different gray values are respectively set in each area; based on the print data file, an exposure control instruction is generated. Therefore, different gray values are set for each area in each layer of model slice, the corresponding light transmission amount of each area is different, namely the exposure intensity is different, the function of independently controlling the exposure energy of each area in the single layer of model slice can be realized only by one exposure picture, the volume and the storage space of a printing data file are reduced, and the data transmission efficiency is improved; when the 3D printer uses the partition exposure control method, the problem of frequent switching of exposure pictures is solved, and the printing efficiency is improved.
Description
Technical Field
The present disclosure relates to the field of 3D printing technologies, and in particular, to a method, an apparatus, a device, and a medium for controlling exposure in a partition.
Background
Photocuring molding is the earliest 3D printing molding technology and is also the mature 3D printing technology at present. The basic principle of the technology is that a three-dimensional target model is divided into a plurality of layers of model slices by utilizing the accumulation molding of materials, liquid photosensitive resin is irradiated by a light source with a certain wavelength, the irradiated part of each layer of liquid photosensitive resin is cured and molded, the part which is not irradiated by the light source is still liquid, and finally, all layers of cured resin are accumulated into the required target model.
The model slice can be divided into two or more different regions according to the structure distribution position or the function, and the exposure energy required to be applied to each region is different. In the related art, the exposure pictures of each layer of model slices are divided into exposure pictures with corresponding numbers according to the number of the areas included in the exposure pictures, each exposure picture corresponds to one area, and the exposure energy of each area is controlled by independently controlling the exposure time of each exposure picture; since the exposure image of each layer of model slice is changed from one to multiple, the volume of the printing data file is too large, and the data transmission is difficult. And when the 3D printer prints the model section, each time switch exposure picture, the hardware aspect all needs 1 second's refresh time, just so need extra consuming time be used for refreshing the waiting, has reduced printing efficiency.
Disclosure of Invention
To solve the above technical problems or to at least partially solve the above technical problems, the present disclosure provides a divisional exposure control method, a printing method, an apparatus, a device, and a medium.
The present disclosure provides a partition exposure control method, including:
obtaining a plurality of layers of model slices of the 3D model;
generating a print data file based on the model slice; wherein each layer of the model slice comprises at least two regions; in the print data file, different gray values are respectively set in each area;
and generating an exposure control instruction based on the printing data file.
In some embodiments, the exposure intensity of each region is positively correlated with the gray scale value.
In some embodiments, each layer of the model slice includes three regions, which are a support region, a contour outer layer region, and a contour inner layer region, respectively.
In some embodiments, the gray values of the support region, the outer region of the profile, and the inner region of the profile are sequentially sorted from large to small as follows:
the gray value of the support region, the gray value of the outer layer region of the contour and the gray value of the inner layer region of the contour.
In some embodiments, the ratio of the exposure intensities of the support region, the contour outer layer region, and the contour inner layer region is: a, B and C;
wherein A is 1, B is more than or equal to 0.7 and less than or equal to 0.9, and C is more than or equal to 0.5 and less than or equal to 0.6.
The present disclosure also provides a divisional exposure control apparatus, including:
the slice acquisition module is used for acquiring a plurality of model slices of the 3D model;
the file generation module is used for generating a printing data file based on the model slice; wherein each layer of the model slice comprises at least two regions; in the print data file, different gray values are respectively set in each area;
and the instruction generating module is used for generating an exposure control instruction based on the printing data file.
The present disclosure also provides a 3D printing method, including any one of the steps of the divisional exposure control method described above.
In some embodiments, the printing method further comprises:
establishing a 3D model;
and slicing the 3D model to obtain a plurality of layers of model slices.
In some embodiments, the printing method further comprises:
and printing the model slices layer by layer based on the exposure control instruction.
The present disclosure also provides a 3D printing apparatus for performing the steps of any of the above-described printing methods.
The present disclosure also provides an electronic device comprising a memory and one or more processors;
wherein the memory is communicatively coupled to the one or more processors, and the memory stores instructions executable by the one or more processors, and the electronic device is configured to perform the steps of any of the above-described zonal exposure control methods, or perform any of the above-described printing methods, when the instructions are executed by the one or more processors.
The present disclosure also provides a computer-readable storage medium having stored thereon a computer-executable program or instructions for causing a computer to perform the steps of any of the above-described divisional exposure control methods, or for causing a computer to perform the steps of any of the above-described printing methods.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the partition exposure control method, the printing device, the equipment and the medium provided by the embodiment of the disclosure comprise the following steps: obtaining a plurality of layers of model slices of the 3D model; generating a print data file based on the model slice; wherein each layer of model slices comprises at least two regions; in the print data file, different gray values are respectively set in each area; based on the print data file, an exposure control instruction is generated. Therefore, different gray values are set for each area in each layer of model slice, the corresponding light transmission amount of each area is different, namely the exposure intensity is different, the function of independently controlling the exposure energy of each area in the single layer of model slice can be realized only by one exposure picture, the volume and the storage space of a printing data file are reduced, and the data transmission efficiency is improved; when the 3D printer uses the partition exposure control method, the problem of frequent switching of exposure pictures is solved, and the printing efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a model slice in the related art;
FIG. 2 is a schematic diagram illustrating a principle of exposure of a model slice in a partitioned area according to the related art;
fig. 3 is a schematic flowchart of a divisional exposure control method according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram illustrating a method for controlling a partitioned exposure according to an embodiment of the disclosure;
fig. 5 is a schematic diagram of a corresponding relationship between exposure intensity and gray scale value according to an embodiment of the disclosure;
fig. 6 is a schematic structural diagram of a partitioned exposure control device according to an embodiment of the present disclosure;
fig. 7 is a schematic flow chart of a 3D printing method according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a 3D printing apparatus according to an embodiment of the present disclosure.
Wherein, 1, model section; 11. a support region; 12. a contour outer layer region; 13. a contour inner layer region; 2. a divisional exposure control device; 21. a slice acquisition module; 22. a file generation module; 23. an instruction generation module; 3. a 3D printing device; 31. a model building module; 32. a slicing processing module; 33. a slice printing module; S110-S130, S210-S260 are steps in the process flow.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced other than as described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
In the related art, as shown in fig. 1 to 2, a model slice 1 may be divided into two different regions according to the structure distribution position and the role of the structure distribution. Because the exposure energy required to be applied to each region is different, the model slice to be printed needs to be subjected to regional exposure; the exposure pictures of each layer of model slice 1 are divided into the corresponding number of exposure pictures according to the number of the areas included in the exposure pictures, each exposure picture corresponds to one area, and the exposure energy of each area is controlled by independently controlling the exposure time of each picture. Since the exposure image of each layer of model slice 1 is changed from one to multiple, the volume of the printing data file is too large, and the data transmission is difficult. And when the 3D printer prints the model section, each time switch exposure picture, the hardware aspect all needs 1 second's refresh time, just so need extra consuming time be used for refreshing the waiting, has reduced printing efficiency.
In order to improve at least one of the above defects, embodiments of the present disclosure provide a divisional exposure control method, a printing method, an apparatus, a device, and a medium, where the divisional exposure control method includes: obtaining a plurality of layers of model slices of the 3D model; generating a print data file based on the model slice; wherein each layer of model slices comprises at least two regions; in the print data file, different gray values are respectively set in each area; based on the print data file, an exposure control instruction is generated. Therefore, different gray values are set for each area in each layer of model slice, the corresponding light transmission amount of each area is different, namely the exposure intensity is different, the function of independently controlling the exposure energy of each area in the single layer of model slice can be realized only by one exposure picture, the volume and the storage space of a printing data file are reduced, and the data transmission efficiency is improved; when the 3D printer uses the partition exposure control method, the problem of frequent switching of exposure pictures is solved, and the printing efficiency is improved.
The following describes, with reference to fig. 3 to 8, an exemplary method, a printing method, an apparatus, a device, and a medium for controlling exposure to a subarea according to an embodiment of the present disclosure.
In some embodiments, as shown in fig. 3, a flowchart of a divisional exposure control method provided in the embodiments of the present disclosure is shown. Referring to fig. 3, the divisional exposure control method includes:
and S110, obtaining a plurality of layers of model slices of the 3D model.
And S120, generating a printing data file based on the model slice.
Wherein each layer of model slices comprises at least two regions; in the print data file, different gradation values are set for each region.
Each region included in each layer of model slice is exposed by using one exposure picture at the same time, namely the exposure time is equal; as can be seen from the formula exposure energy, exposure intensity × exposure time, the control of the exposure energy of each region can be realized by controlling the exposure intensity of each region.
The control of the exposure intensity of each area is realized by setting different gray values, the larger the gray value is, the more the light transmission amount is, the stronger the exposure intensity is, and the positive correlation between the exposure intensity and the gray value is realized. According to the corresponding relation between the exposure intensity and the gray value, on the premise of determining the exposure energy and the exposure time required by each region, the exposure intensity of each region can be obtained through calculation, and further the gray value of each region is obtained.
Wherein, the gray value setting range is [0, 255], and 256 gray levels are counted; the larger the gray value is, the lighter the color is; the smaller the gray value, the darker the color; white (corresponding to a grey value of 255) indicates complete brightness and black (corresponding to a grey value of 0) indicates complete darkness.
And S130, generating an exposure control instruction based on the printing data file.
Wherein, the exposure control command at least comprises exposure time and gray values of all areas; and may also include the output exposure intensity for each region. The output exposure intensity can be obtained by reverse calculation according to the set gray value.
Illustratively, as shown in fig. 4, a schematic diagram of a method for controlling a partitioned exposure provided by an embodiment of the present disclosure is shown. Referring to fig. 4, the model slice 1 includes three regions, the three regions are respectively set with different gray values, and the corresponding three regions have different light transmission amounts and different expressed colors; according to the corresponding relation between the exposure intensity and the gray value, if the gray values set in the three areas are different, the exposure intensity is different, so that the function of independently controlling the exposure energy of each area in the single-layer model slice can be realized only by one exposure picture (the three areas in the picture are provided with different gray values).
It can be understood that fig. 4 only exemplarily shows that the model slice 1 includes three regions, but does not constitute a limitation to the divisional exposure control method provided by the embodiment of the present disclosure. In other embodiments, the number of the regions included in the model slice 1 may also be two, four or more, and is not limited herein.
The embodiment of the disclosure provides a partition exposure control method, which includes: obtaining a plurality of layers of model slices of the 3D model; generating a print data file based on the model slice; wherein each layer of model slices comprises at least two regions; in the print data file, different gray values are respectively set in each area; based on the print data file, an exposure control instruction is generated. Therefore, different gray values are set for different areas in each layer of model slices, the corresponding areas have different light transmission amounts, namely different exposure intensities, and the function of independently controlling the exposure energy of each area in the single-layer model slices can be realized by only one exposure picture, so that the volume and the storage space of a printing data file are reduced, and the data transmission efficiency is improved; when the 3D printer uses the partition exposure control method, the problem of frequent switching of exposure pictures is solved, and the printing efficiency is improved.
In some embodiments, as shown in fig. 4, each layer of the model slice includes three regions, which are a support region, a contour outer layer region, and a contour inner layer region.
It should be noted that fig. 4 only exemplarily shows that the model slice 1 includes the support region 11, the outline outer layer region 12 and the outline inner layer region 13, but does not limit the divisional exposure control method provided by the embodiment of the present disclosure. In other embodiments, the model slice 1 further comprises other regions known to those skilled in the art, and is not limited herein.
In some embodiments, as shown in fig. 4, the gray values of the support region 11, the outline outer layer region 12 and the outline inner layer region 13 are sequentially sorted from large to small as follows: the grey values of the support regions 11, the grey values of the contour outer layer regions 12 and the grey values of the contour inner layer regions 13.
Among the three regions, the support region 11 requires the largest exposure energy to improve the mechanical strength of the support region 11, so that the support region can better exert the support function. The contoured outer layer areas 12 require a higher exposure energy than the contoured inner layer areas 13 so that the surface quality of the printed model is improved. Thus, the sequence of exposure energies for the support region 11, the contour outside layer region 12 and the contour inside layer region 13 is: exposure energy of the support region 11 > exposure energy of the profile outer layer region 12 > exposure energy of the profile inner layer region 13. As can be seen from the formula exposure energy being exposure intensity × exposure time, the order of the exposure intensities of the three regions is the same as the order of the exposure energies, i.e., the exposure intensity of the support region 11 > the exposure intensity of the contour outer layer region 12 > the exposure intensity of the contour inner layer region 13; since the exposure intensity is positively correlated with the gray-scale values, the gray-scale values of the support region 11, the contour outer region 12 and the contour inner region 13 are ordered as follows: the gray value of the support region 11 > the gray value of the outer layer region 12 > the gray value of the inner layer region 13, i.e. the gray value of the support region 11 is the largest and the color is the lightest; the gray value and color of the outline skin region 12 are centered; the grey value of the inner region 13 of the contour is the smallest and the color the deepest.
Illustratively, as shown in fig. 4, the colors of the three regions of the model slice 1 are as follows: the support area 11 is the lightest color, white and has the largest gray value; the inner region 13 of the outline has the darkest color, is dark gray, and has the smallest gray value; the contour outer layer region 12 is light gray in color with gray values between those of the support region 11 and the contour inner layer region 13.
In some embodiments, as shown in fig. 5, a diagram of correspondence between exposure intensity and gray scale value provided by the embodiments of the present disclosure is shown, in which the horizontal axis represents the gray scale value percentage (%) and the vertical axis represents the exposure intensity percentage (%). Referring to fig. 5, the exposure intensity is positively correlated with the gray-scale value; the ratio of the exposure intensity of the support area, the outline outer layer area and the outline inner layer area is A: B: C; wherein A is 1, B is more than or equal to 0.7 and less than or equal to 0.9, and C is more than or equal to 0.5 and less than or equal to 0.6.
Wherein, the exposure intensity and the gray value are in positive correlation, and the exposure intensity and the gray value are in exponential function relationship: the exposure intensity is equal to the gray value ^ Gamma; gamma is an index in an index function, and the value range is 2.2-2.5; the Gamma values are different, and the corresponding relation between the exposure intensity and the gray value is also different.
Exemplarily, as shown in fig. 5, the horizontal axis represents the gray value percentage (%) and the vertical axis represents the exposure intensity percentage (%), Gamma 2.2, i.e., the exposure intensity percentage ^ 2.2; assuming that the ratio of the exposure intensities of the support region, the outline outer layer region and the outline inner layer region is 1:0.8:0.59, that is, a is 1-100%, B is 0.8-80%, and C is 0.59-59%; finding from fig. 5 that the gray scale value percentages corresponding to the exposure intensity percentages are 100%, 90%, 78.5%, respectively, the ratio of the gray scale values of the support region, the contour outer layer region, and the contour inner layer region is 1:0.9: 0.785; if the gray value of the support area is set to be 255, the gray value of the outer layer area of the outline is 255 multiplied by 0.9 ≈ 230, and the gray value of the inner layer area of the outline is 255 multiplied by 0.785 ≈ 200; if the gray scale value of the support region is set to 200, the gray scale value of the outer layer region of the outline is 200 × 0.9 ≈ 180, and the gray scale value of the inner layer region of the outline is 200 × 0.785 ≈ 157.
It can be understood that fig. 5 only exemplarily shows the corresponding relationship between the exposure intensity percentage and the gray value percentage in the case that Gamma is 2.2, but does not limit the divisional exposure control method provided by the embodiment of the present disclosure. In other embodiments Gamma may also be equal to 2.25, 2.3, 2.35, 2.4, 2.45, 2.5, or other values or ranges known to those skilled in the art, not limited herein.
It should be noted that, in the embodiment of the present disclosure, the corresponding gray-scale value is set to 255 or 200 only by way of example when the gray-scale value percentage is 100%, but the method for controlling the divisional exposure provided by the embodiment of the present disclosure is not limited. In other embodiments, the gray value when the gray value percentage is 100% may be set to other values known to those skilled in the art, and is not limited herein.
Based on the same inventive concept, the embodiments of the present disclosure further provide a divisional exposure control device, where the divisional exposure control device is configured to perform any of the steps of the divisional exposure control methods, and has corresponding beneficial effects, and the same points may be understood with reference to the above description, and are not described in detail hereinafter.
In some embodiments, as shown in fig. 6, a schematic structural diagram of a partitioned exposure control device provided in an embodiment of the present disclosure is shown. Referring to fig. 6, the divisional exposure control apparatus 2 includes: a slice acquiring module 21, configured to acquire a plurality of model slices of the 3D model; a file generation module 22 for generating a print data file based on the model slice; wherein each layer of model slices comprises at least two regions; in the print data file, different gray values are respectively set in each area; and an instruction generating module 23, configured to generate an exposure control instruction based on the print data file.
It should be noted that fig. 6 only exemplarily shows that the partition exposure control device 2 includes the slice acquisition module 21, the file generation module 22, and the instruction generation module 23, but does not constitute a limitation on the partition exposure control device provided in the embodiment of the present disclosure. In other embodiments, the divisional exposure control apparatus further includes other modules known to those skilled in the art, and is not limited herein.
The embodiment of the disclosure also provides a 3D printing method, which includes any one of the steps of the partition exposure control method, so as to achieve corresponding beneficial effects, which are not described herein again.
In some embodiments, as shown in fig. 7, a schematic flow chart of a 3D printing method provided by an embodiment of the present disclosure is shown. The printing method further includes:
and S210, establishing a 3D model.
S220, slicing the 3D model to obtain a plurality of layers of model slices.
In some embodiments, as shown in fig. 7, the printing method further comprises:
and S260, printing the model slices layer by layer based on the exposure control instruction.
Illustratively, as shown in fig. 7, the printing method includes the steps of:
and S210, establishing a 3D model.
S220, slicing the 3D model to obtain a plurality of layers of model slices.
And S230, obtaining a plurality of layers of model slices of the 3D model.
And S240, generating a printing data file based on the model slice.
Each layer of model slice comprises a support area, a contour outer layer area and a contour inner layer area; in the print data file, different gray values are respectively set in the support area, the outline outer layer area and the outline inner layer area.
The support area, the outline outer layer area and the outline inner layer area are exposed by one picture at the same time, namely the exposure time is equal; according to the formula: the exposure energy is known as exposure intensity × exposure time, and the exposure energy of each region can be controlled by controlling the exposure intensity of each region.
The control of the exposure intensity of each area is realized by setting different gray values, the larger the gray value is, the more the light transmission amount is, the stronger the exposure intensity is, and the positive correlation between the exposure intensity and the gray value is realized. According to the corresponding relation between the exposure intensity and the gray value, on the premise of determining the exposure energy and the exposure time required by each region, the exposure intensity of each region can be obtained through calculation, and further the gray value of each region is obtained.
Wherein, the gray value range [0, 255] has 256 gray levels in total; the larger the gray value is, the lighter the color is; the smaller the gray value, the darker the color; white (grey value of 255) indicates complete brightness, and black (grey value of 0) indicates complete darkness.
And S250, generating an exposure control instruction based on the printing data file.
And S260, printing the model slices layer by layer based on the exposure control instruction.
Wherein, the exposure control command at least comprises exposure time and gray values of all areas; and may also include the output exposure intensity for each region. The output exposure intensity can be obtained by reverse calculation according to the set gray value.
It should be noted that fig. 7 only exemplarily shows the flow steps of one 3D printing method, but does not limit the printing method provided by the embodiment of the present disclosure. In other embodiments, the 3D printing method may further include other steps known to those skilled in the art, which are neither described nor limited herein.
The embodiment of the disclosure also provides a 3D printing apparatus, which is configured to execute the steps of any one of the above printing methods.
Exemplarily, as shown in fig. 8, a schematic structural diagram of a 3D printing apparatus provided in an embodiment of the present disclosure is shown. Referring to fig. 8, the 3D printing apparatus 3 includes a model building module 31, a slice processing module 32, a slice acquiring module 21, a file generating module 22, an instruction generating module 23, and a slice printing module 33; the slice acquiring module 21, the file generating module 22, and the command generating module 23 are constituent modules of the divisional exposure control apparatus 2.
It should be noted that fig. 8 only exemplarily shows that the 3D printing apparatus 3 includes the model building module 31, the slice processing module 32, the slice acquiring module 21, the file generating module 22, the instruction generating module 23, and the slice printing module 33, but does not constitute a limitation on the 3D printing apparatus provided by the embodiment of the present disclosure. In other embodiments, the 3D printing apparatus may further include other modules known to those skilled in the art, or only include some of the modules shown in fig. 8, which is not limited herein.
The disclosed embodiments also provide an electronic device comprising a memory and one or more processors; wherein the memory is communicatively coupled to the one or more processors, and the memory stores instructions executable by the one or more processors, and the electronic device is configured to perform the steps of any of the above-described zonal exposure control methods, or perform the steps of any of the above-described printing methods, when the instructions are executed by the one or more processors.
The disclosed embodiments also provide a computer-readable storage medium having stored thereon a computer-executable program or instructions for causing a computer to perform the steps of any of the above-described divisional exposure control methods, or for causing a computer to perform the steps of any of the above-described printing methods.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (12)
1. A divisional exposure control method, comprising:
obtaining a plurality of layers of model slices of the 3D model;
generating a print data file based on the model slice; wherein each layer of the model slice comprises at least two regions; in the print data file, different gray values are respectively set in each area;
and generating an exposure control instruction based on the printing data file.
2. The divisional exposure control method of claim 1, wherein the exposure intensity of each area is positively correlated with the gray-scale value.
3. The divisional exposure control method according to claim 1, wherein each layer of the model slice includes three regions, which are a support region, a contour outer layer region, and a contour inner layer region, respectively.
4. The divisional exposure control method of claim 3, wherein the gray-scale values of the support area, the outline outer-layer area and the outline inner-layer area are sequentially ordered from large to small as:
the gray value of the support region, the gray value of the outer layer region of the contour and the gray value of the inner layer region of the contour.
5. The divisional exposure control method according to claim 4, wherein a ratio of exposure intensities of the support area, the outline outer layer area, and the outline inner layer area is: a, B and C;
wherein A is 1, B is more than or equal to 0.7 and less than or equal to 0.9, and C is more than or equal to 0.5 and less than or equal to 0.6.
6. A divisional exposure control apparatus, comprising:
the slice acquisition module is used for acquiring a plurality of model slices of the 3D model;
the file generation module is used for generating a printing data file based on the model slice; wherein each layer of the model slice comprises at least two regions; in the print data file, different gray values are respectively set in each area;
and the instruction generating module is used for generating an exposure control instruction based on the printing data file.
7. A 3D printing method characterized by comprising the steps of the divisional exposure control method of any one of claims 1-5.
8. The printing method of claim 7, further comprising:
establishing a 3D model;
and slicing the 3D model to obtain a plurality of layers of model slices.
9. The printing method of claim 7, further comprising:
and printing the model slices layer by layer based on the exposure control instruction.
10. A 3D printing apparatus, characterized in that the printing apparatus is adapted to perform the steps of the printing method according to any of claims 7-9.
11. An electronic device comprising memory and one or more processors;
wherein the memory is communicatively coupled to the one or more processors and has stored therein instructions executable by the one or more processors, the instructions, when executed by the one or more processors, being operable by the electronic device to perform the steps of the zone exposure control method according to any one of claims 1-5 or to perform the steps of the printing method according to any one of claims 7-9.
12. A computer-readable storage medium, having stored thereon a computer-executable program or instructions for causing a computer to perform the steps of the zonal exposure control method according to any of claims 1-5, or for causing a computer to perform the steps of the printing method according to any of claims 7-9.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006035739A1 (en) * | 2004-09-29 | 2006-04-06 | Nabtesco Corporation | Optical molding device and optical molding method |
| CN101244629A (en) * | 2006-08-29 | 2008-08-20 | 3D系统公司 | Method and device for solid objective formation layer by layer |
| DE102004064131B4 (en) * | 2004-05-10 | 2015-07-16 | Envisiontec Gmbh | Method for generating a bitmap and device for producing a three-dimensional object |
| CN109203462A (en) * | 2018-11-12 | 2019-01-15 | 浙江迅实科技有限公司 | A kind of mostly exposure mouth 3D printer machine and its control method |
| CN110202784A (en) * | 2019-06-13 | 2019-09-06 | 中国科学院兰州化学物理研究所 | A kind of gray scale DLP Method of printing |
| CN110654028A (en) * | 2019-10-12 | 2020-01-07 | 上海联泰科技股份有限公司 | Three-dimensional object data layering processing method and 3D printing equipment |
| CN112519203A (en) * | 2020-12-02 | 2021-03-19 | 哈尔滨工业大学 | Efficient nondestructive supporting method for surface projection photocuring 3D printing based on gray level exposure |
| CN113334767A (en) * | 2021-06-16 | 2021-09-03 | 上海联泰科技股份有限公司 | 3D printing method, device, data processing method, system and storage medium |
-
2021
- 2021-12-29 CN CN202111633325.XA patent/CN114261096A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004064131B4 (en) * | 2004-05-10 | 2015-07-16 | Envisiontec Gmbh | Method for generating a bitmap and device for producing a three-dimensional object |
| WO2006035739A1 (en) * | 2004-09-29 | 2006-04-06 | Nabtesco Corporation | Optical molding device and optical molding method |
| CN101244629A (en) * | 2006-08-29 | 2008-08-20 | 3D系统公司 | Method and device for solid objective formation layer by layer |
| CN109203462A (en) * | 2018-11-12 | 2019-01-15 | 浙江迅实科技有限公司 | A kind of mostly exposure mouth 3D printer machine and its control method |
| CN110202784A (en) * | 2019-06-13 | 2019-09-06 | 中国科学院兰州化学物理研究所 | A kind of gray scale DLP Method of printing |
| CN110654028A (en) * | 2019-10-12 | 2020-01-07 | 上海联泰科技股份有限公司 | Three-dimensional object data layering processing method and 3D printing equipment |
| CN112519203A (en) * | 2020-12-02 | 2021-03-19 | 哈尔滨工业大学 | Efficient nondestructive supporting method for surface projection photocuring 3D printing based on gray level exposure |
| CN113334767A (en) * | 2021-06-16 | 2021-09-03 | 上海联泰科技股份有限公司 | 3D printing method, device, data processing method, system and storage medium |
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