CN107839237A - A kind of color spraying method based on colored 3D printer - Google Patents
A kind of color spraying method based on colored 3D printer Download PDFInfo
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- CN107839237A CN107839237A CN201710832083.4A CN201710832083A CN107839237A CN 107839237 A CN107839237 A CN 107839237A CN 201710832083 A CN201710832083 A CN 201710832083A CN 107839237 A CN107839237 A CN 107839237A
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- triangular facet
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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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of color spraying method based on colored 3D printer, comprise the following steps：Step 1, obtain STL formatted files；Step 2, obtain triangular facet, calculate projection；Step 3, screening projection；Step 4, obtain path；Step 5, according to path color spray.The beneficial effects of the invention are as follows：It is incomplete to solve the problems, such as that the model contour gradient sprays compared with time slack.
Description
Technical field
The present invention relates to 3D printing technique field, and in particular to a kind of color spraying method based on colored 3D printer.
Background technology
3D printer is a kind of a kind of machine of accumulation manufacturing technology, i.e. rapid shaping technique.The work of 3D printer is former
Reason is that data and raw material are placed in 3D printer, and printer prints the model of required printing according to program layer by layer
Come.Colored 3D printer is then on the basis of common FDM3D printer, the model paint colors printed is obtained colored
Model；Chromatic colour 3D printer when being sprayed to model, does not calculate the edge of model, particularly model on the market at present
The more slow place of surface gradient, occur spraying incomplete situation, cause that model surface color deposition accuracies are not high, and appearance is not beautiful
See.
Therefore a kind of method is needed to solve the above problems.
The content of the invention
To overcome above mentioned problem, the invention provides a kind of color spraying method based on colored 3D printer, by adopting
Spray-coating surface is intercepted with projection, it is incomplete to solve the problems, such as that the model contour gradient sprays compared with time slack.
The technical scheme is that：A kind of color spraying method based on colored 3D printer, comprises the following steps：
Step 1, obtain STL formatted files；
The stl file for the color model for needing to print is inserted in Slice Software；
Step 2, triangular facet is obtained, calculate projection；
Slice Software obtains the triangular facet in stl file, and triangular facet is calculated in X/Y planes by three point coordinates of each triangular facet
On projection；
Step 3, screening projection；
Screen projection of the triangular facet with triangular facet of the X/Y interplanars angle not equal to 90 ° in X/Y planes；
Step 4, obtain path；
It is path by the projection transform of screening, that is, the starting position coordinates projected are designated as S1 to the path between end position coordinate；
Vee formation face will be screened and the contour line of triangular facet of the X/Y interplanars angle equal to 90 ° is designated as path S2；
Step 5, according to path color spray；
Paint-spraying head is to path S1 and path S2 color sprays.
Brief description of the drawings
Fig. 1 is a kind of showing for model of the calculating paint colors of the color spraying method based on colored 3D printer of the invention
It is intended to.
Fig. 2 is a kind of model profile of the color spraying method based on colored 3D printer of the present invention.
Fig. 3 is a kind of model profile of the color spraying method based on colored 3D printer of the present invention.
Embodiment
In order to it is to be expressly understood that the technology contents of the present invention, illustrate especially exemplified by following instance.
This method comprises the following steps that：
Step 1, obtain STL formatted files；
The stl file for the color model for needing to print is inserted in Slice Software；
Step 2, triangular facet is obtained, calculate projection；
Slice Software obtains the triangular facet in stl file, and triangular facet is calculated in X/Y planes by three point coordinates of each triangular facet
On projection；
Step 3, screening projection；
Screen projection of the triangular facet with triangular facet of the X/Y interplanars angle not equal to 90 ° in X/Y planes；
Step 4, obtain path；
It is path by the projection transform of screening, that is, the starting position coordinates projected are designated as S1 to the path between end position coordinate；
Vee formation face will be screened and the contour line of triangular facet of the X/Y interplanars angle equal to 90 ° is designated as path S2；
Step 5, according to path color spray；
Paint-spraying head is to path S1 and path S2 color sprays.
Refering to shown in Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the 3D printing model for needing to carry out color spraying, and the model surface is by nothing
Number triangular facet is formed
Such as any triangular facet A in reference line Z3-Z2, triangular facet A is perpendicular to X/Y interplanars, i.e. triangular facet A and X/Y planes
Angle is equal to 90 °, and any triangular facet in reference line Z3-Z2 is as A；As shown in Fig. 2 a is all triangles of Z3-Z2 sections
Color spray contour line of the face on certain same contour, a ' are all triangular facets in Z3-Z2 sections on different from previous contour
Color spray contour line, it is seen that when triangular facet and X/Y plane included angles are equal to 90 °, color spray contour line overlaps in Z-direction, i.e. paint-spraying head
Can even application model surface as long as spraying contour line.Therefore, when to the spraying of the colors of reference line Z3-Z2 sections, using pair
The appearance contour line of triangular facet（That is path S2）Sprayed.
Such as any triangular facet B in reference line Z2-Z1, triangular facet B and X/Y interplanars angle are not equal to 90 °, and join
Any triangular facet in line Z2-Z1 is examined as B；As shown in figure 3, b be with triangular facet B on same contour all triangles
The color spray contour line in face, b ' for triangular facet B in same contour and the institute on any contour above previous contour
Have the color spray contour line of triangular facet, form the region X not being sprayed-on between contour line b and contour line b ', and the region be with
The projection that all triangular facets of contour where triangular facet B are formed in X/Y planes.Therefore, in the color to reference line Z2-Z1 sections
During spraying, using the path of the projection conversion formed to triangular facet in X/Y planes（That is path S1）Sprayed.
I.e. in the model shown in Fig. 1, using external table skeleton line（That is path S2）Formed with triangular facet in X/Y planes
Project the path of conversion（That is path S1）Sprayed.
It will also be appreciated that when the gradient of model surface gets over time slack, the region area for occurring not being sprayed-on is bigger, by using throwing
The method that shadow intercepts spray-coating surface, can solve the problems, such as model part surface spraying less than color.
Claims (1)
1. a kind of color spraying method based on colored 3D printer, it is characterised in that comprise the following steps：
Step 1, obtain STL formatted files；
The stl file for the color model for needing to print is inserted in Slice Software；
Step 2, triangular facet is obtained, calculate projection；
Slice Software obtains the triangular facet in stl file, and triangular facet is calculated in X/Y planes by three point coordinates of each triangular facet
On projection；
Step 3, screening projection；
Screen projection of the triangular facet with triangular facet of the X/Y interplanars angle not equal to 90 ° in X/Y planes；
Step 4, obtain path；
It is path by the projection transform of screening, that is, the starting position coordinates projected are designated as S1 to the path between end position coordinate；
Vee formation face will be screened and the contour line of triangular facet of the X/Y interplanars angle equal to 90 ° is designated as path S2；
Step 5, according to path color spray；
Paint-spraying head is to path S1 and path S2 color sprays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710832083.4A CN107839237B (en) | 2017-09-15 | 2017-09-15 | A kind of color spraying method based on colored 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710832083.4A CN107839237B (en) | 2017-09-15 | 2017-09-15 | A kind of color spraying method based on colored 3D printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107839237A true CN107839237A (en) | 2018-03-27 |
| CN107839237B CN107839237B (en) | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710832083.4A Active CN107839237B (en) | 2017-09-15 | 2017-09-15 | A kind of color spraying method based on colored 3D printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091501A (en) * | 2019-05-28 | 2019-08-06 | 浙江大学 | A kind of color three dimension Method of printing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140257549A1 (en) * | 2013-03-06 | 2014-09-11 | Impossible Objects, LLC | Methods and Apparatus for Photosculpture |
| CN104085107A (en) * | 2014-06-26 | 2014-10-08 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer, printing method of three-dimensional printer and printing device of printing method |
| CN104827666A (en) * | 2015-04-30 | 2015-08-12 | 北京敏速自动控制设备有限公司 | 3D printing supporting method and system thereof |
-
2017
- 2017-09-15 CN CN201710832083.4A patent/CN107839237B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140257549A1 (en) * | 2013-03-06 | 2014-09-11 | Impossible Objects, LLC | Methods and Apparatus for Photosculpture |
| CN104085107A (en) * | 2014-06-26 | 2014-10-08 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer, printing method of three-dimensional printer and printing device of printing method |
| CN104827666A (en) * | 2015-04-30 | 2015-08-12 | 北京敏速自动控制设备有限公司 | 3D printing supporting method and system thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091501A (en) * | 2019-05-28 | 2019-08-06 | 浙江大学 | A kind of color three dimension Method of printing |
| CN110091501B (en) * | 2019-05-28 | 2020-05-12 | 浙江大学 | Color three-dimensional printing method |
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| Publication number | Publication date |
|---|---|
| CN107839237B (en) | 2019-08-30 |
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Address after: 211100 Tianyuan East Road 1009, Jiangning District, Nanjing, Jiangsu Province (Jiangning Science Park) Patentee after: Jiangsu Weibaoshi Intelligent Technology Co., Ltd. Address before: 211100 Tianyuan East Road 1009, Jiangning District, Nanjing, Jiangsu Province (Jiangning Science Park) Patentee before: JIANGSU WEIBAOSHI SCIENCE & TECHNOLOGY Co.,Ltd. |