CN108859110A - The arrangement method of 3 d part model - Google Patents
The arrangement method of 3 d part model Download PDFInfo
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- CN108859110A CN108859110A CN201810897601.5A CN201810897601A CN108859110A CN 108859110 A CN108859110 A CN 108859110A CN 201810897601 A CN201810897601 A CN 201810897601A CN 108859110 A CN108859110 A CN 108859110A
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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
- B29C64/188—Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
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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
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Abstract
The present invention provides a kind of arrangement method of 3 d part model.The arrangement method of the 3 d part model includes：Step 1：3 d part model is imported, 3 d part model is placed in a fixed rectangular coordinate system XYZ；Step 2：The feature for identifying 3 d part model, preset condition and known another characteristic is compared, and put 3 d part model according to comparing result；Step 3：3 d part model is rotated rotating around X-axis and Y-axis, adjust the coordinate of 3 d part model, make the highest point and the lowest point of 3 d part model adjusted in the vertical range minimum in rectangular coordinate system along Z axis, to keep the printing height of 3 d part model minimum.The arrangement method of 3 d part model of the invention can make the printing height of 3 d part model minimum, shorten the time of subsequent printing, improve production efficiency.
Description
Technical field
The present invention relates to 3 D-printing field more particularly to a kind of arrangement methods of 3 d part model.
Background technique
3D printing technique is one kind of rapid shaping technique, it is using discrete-accumulation principle, using digital model file as base
Plinth, using powder to be formed made of metal or nonmetallic materials, by the successively fusing/thawing of tiled powder to be formed, so
Solidify accumulation molding afterwards to construct three-dimension object, with the fast development of 3D printing technique, 3D printer is obtained in product manufacturing industry
It obtained and was widely applied.But 3D printing is layering printing, would generally be obliquely installed when part model imported into processing platform, such as
There are certain angles between part model and horizontal plane, so that the longitudinal length of printing is elongated, thus increase the time of printing,
It is unfavorable for the control of cost, reduces processing efficiency.
Summary of the invention
In view of the above situation, the present invention provides a kind of arrangement method of 3 d part model, can adjust 3 d part mould
The bottom surface of part is parallel to the horizontal plane substantially in the position of type, and the printing height of part is preferably minimized, and reduces the printing number of plies, contracting
The short print time, to improve printing effect.
A kind of arrangement method of 3 d part model, comprises the following steps：
Step 1：3 d part model is imported, 3 d part model is placed in a fixed rectangular coordinate system XYZ；
Step 2：The feature for identifying 3 d part model, preset condition and known another characteristic is compared, and foundation
Comparing result puts 3 d part model；
Step 3：3 d part model is rotated rotating around X-axis and Y-axis, the coordinate of 3 d part model is adjusted, makes to adjust
The highest point and the lowest point of 3 d part model afterwards is minimum along the vertical range of Z axis in rectangular coordinate system, to make three-dimensional zero
The printing height of part model is minimum.
Preferably, the quantity of the 3 d part model is at least one.
Further, executing after step 1 imports 3 d part model further includes step：Judging the 3 d part model is
It is no to need to overturn, and do not overturn according to judging result overturning or the 3 d part model.
Preferably, the preset condition is part model quantity, part model classification and part model manufacturing procedure, step
Rapid 2 include：
The number of parts and structure in each 3 d part model are identified, according to the number or part of number of parts
Structured sort or the manufacturing procedure of part the 3 d part model is alternatively arranged in order.
Preferably, the step 2 includes：It will be positioned at 3 d part model projection in rectangular coordinate system XYZ to X/Y plane；It will
3 d part model turns about the Z axis, and 3 d part model is made to be roughly parallel to Y-axis or X-axis in the long side of the projection of X/Y plane.
Preferably, in step 1, the 3 d part model is the physical model file that can be used for 3 D-printing system, text
Part format includes .stl .stp or .igs.
Further, judge whether the 3 d part model needs to overturn, and overturn or do not overturn according to judging result
The 3 d part model further includes：
If the open end of the 3 d part model is upward, determine that the 3 d part model does not need to overturn, institute
3 d part model is stated to remain stationary；
If the open end of the 3 d part model is downward, determine that the 3 d part model needs to overturn 180 °,
The 3 d part model is rotated 180 °.
Further, the rectangular coordinate system XYZ is cartesian cartesian coordinate system, and step 3 further includes：
It will be positioned at 3 d part model projection in rectangular coordinate system XYZ to YZ plane；
Judge the minimum point projected in YZ plane and highest point, and records the Z axis coordinate of minimum point and highest point；
It by 3 d part model using minimum point as center of rotation, is rotated clockwise or counterclockwise around X-axis, in YZ plane
Each point on projection bottom edge is not less than minimum point, and when the Z axis coordinate of highest point is minimized, 3 d part model stops
Rotation.
Further, step 3 further includes：
By postrotational 3 d part model projection to XZ plane；
Judge the minimum point projected in XZ plane and highest point, and records the Z axis coordinate of minimum point and highest point；
It by 3 d part model using minimum point as center of rotation, is rotated clockwise or counterclockwise around Y-axis, in XZ plane
Each point is not less than minimum point on projection bottom edge, and when the Z axis coordinate of highest point is minimized, and 3 d part model stops turning
It is dynamic.
Further, after executing the step 3, the method also includes steps：Start three-dimensional printer, starts to print institute
State 3 d part model.
The arrangement method of 3 d part model of the invention will need the 3 d part model printed to be alternatively arranged in order,
Part can be made non-interference, the part of side can be removed after the completion of printing, the part of the other side continues subsequent processing,
It is such as heat-treated, to improve the production efficiency of product.Distinguish again after 3 d part model is projected respectively to YZ and XZ plane
The step of being rotated around X-axis and Y-axis can be simple and quick adjustment by the horizontal position of 3 d part model so that 3 d part mould
The highest point and the lowest point of type is minimum along the vertical range of Z axis in rectangular coordinate system, and printing height is minimum, shortens subsequent printing
Time improves production efficiency.
Detailed description of the invention
Fig. 1 is the flow chart of 3 d part model arrangement method of the invention.
Fig. 2 is the method schematic diagram of rotational parts after 3 d part model projection to X/Y plane of the invention.
Fig. 3 is the method schematic diagram of rotational parts after 3 d part model projection to YZ plane of the invention.
Fig. 4 is the method schematic diagram of rotational parts after 3 d part model projection to XZ plane of the invention.
Specific embodiment：
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is the arrangement method of 3 d part model of the invention, specific implementation step is as follows：
Step S101：Import 3 d part model.
The 3 d part model is directed in 3 D-printing system, and is placed in a fixed rectangular coordinate system
In XYZ.The 3 d part model of importing is the physical model file that can possess 3 D-printing system, file format can be but
It is not limited to the file formats such as " .stl ", " .stp ", " .igs ".A three-dimensional zero can be introduced only into when importing 3 d part model
Part model, can also import multiple 3 d part models simultaneously, and the present embodiment does not do the quantity of the 3 d part model of importing
It limits.
Step S102：Judge whether 3 d part model needs to overturn, and does not overturn according to judging result overturning or three-dimensional
Part model.
When 3 d part model is that one end has an opening, the closed structure of the other end, such as corona model, then open end is upward
Be conducive to the implementation of print procedure in subsequent 3 D-printing system.Judging whether 3 d part model needs to overturn includes judgement
Upward whether the open end of 3 d part model.If the open end of 3 d part model is upward, 3 d part model is determined
It does not need to overturn, the guarantee of 3 d part model is motionless, is directly entered step S103.If the open end court of 3 d part model
Under, then determine that 3 d part model needs to overturn, then 3 d part model, which overturns 180 ° around Central of the parts, makes 3 d part model
Open end upward, subsequently into step S103.
In other embodiments, step S102 also can be omitted, and not need to judge whether to overturn 3 d part model, directly
Enter step S103.
Step S103：The quantity and structure for identifying 3 d part model, are arranged in order 3 d part according to preset condition
Model.Preset condition can be part model quantity, part model classification and part model manufacturing procedure etc..
3 d part model can be corona model.By taking corona model as an example, due to structure, the quantity of each corona part
Difference, can by identifying the quantity and structured sort of each corona model, by corona model according to tooth numbers number from a left side
It is alternatively arranged to right subregion, or from left to right subregion is alternatively arranged according to tooth.It can also be subsequent according to part
Manufacturing procedure successively arranges part according to the quantity of manufacturing procedure.When importing multiple 3 d part models, first adjust more
The position of a 3 d part model keeps the minimum point Z coordinate of multiple 3 d part models consistent, i.e., multiple 3 d part models
Minimum point is in sustained height.Then, by 3 d part model projection to X/Y plane, perspective view is referring to Fig. 2, XY at this time
There are certain angles between the long side and Y-axis of projection in plane.3 D-printing system is according to the boundary of the projection on X/Y plane
The long side and short side of apex coordinate judgement projection.Then, according to the X axis coordinate value of each point on the projected boundary on X/Y plane, note
Record records the X axis coordinate X1 of the X axis coordinate X0 and farthest point A1 of closest approach A0 apart from Y-axis closest approach A0 and farthest point A1.
Then using closest approach A0 as center of rotation, 3 d part model is turned about the Z axis.Each point in the projection long side on X/Y plane
X axis coordinate value is not less than closest approach A0, and when the X-coordinate value X1 of farthest point A1 is minimized, and 3 d part model stops turning
It is dynamic.At this point, 3 d part model is parallel with Y-axis in the long side of the projection of X/Y plane, as shown in Figure 2.Adjustment is conducive in X in this way
Arrangement 3 d part model as much as possible in axis direction saves print space.
In other embodiments, 3 d part model can rotate about the z axis, keep the long side of the projection on X/Y plane and X-axis flat
Row, 3 d part model is by sequence arrangement from top to bottom or from bottom to up.Adjustment rule and method are similar to the above, herein not
It repeats again.
3 d part model after arrangement is non-interference, can be as needed by the needs of side after part is completed to print
The part being further processed takes out, and the part of the other side carries out other further programs, such as heat treatment, is conducive to mention in this way
The production efficiency of high part.
Step S104：3 d part model is rotated rotating around X-axis and Y-axis, the coordinate of 3 d part model is adjusted, makes to adjust
The highest point and the lowest point of 3 d part model after whole is minimum along the vertical range of Z axis in rectangular coordinate system, to make three-dimensional
The printing height of part model is minimum.
Specifically, fixed rectangular coordinate system XYZ is cartesian cartesian coordinate system XYZ, in rectangular coordinate system XYZ
3 d part model is first projected to YZ plane, and perspective view sees Fig. 3, and the projection in YZ plane is inclined at this time, is changed
Sentence is talked about, and there are certain angles between the bottom edge and Y-axis of the projection in YZ plane.According to each on the boundary of the projection in YZ plane
The Z axis coordinate of point judges the minimum point projected in YZ plane and highest point.The minimum point of projection in YZ plane is denoted as P0,
Highest point is denoted as P1, and records the Z axis coordinate Z1 of the Z axis coordinate Z0 and highest point P1 of minimum point P0.It is rotation with minimum point P0
Center rotates clockwise or counterclockwise 3 d part model around X-axis, when each point on the projection bottom edge in YZ plane is not low
When the Z coordinate value Z1 of minimum point P0, and highest point P1 are minimized, 3 d part model stops operating.At this point, 3 d part
Model is parallel with Y-axis on the bottom edge of the projection of YZ plane, as shown in Figure 3.
Further, by the 3 d part model projection after rotation to XZ plane, perspective view sees Fig. 4, at this time
Projection in XZ plane be it is inclined, in other words, there are certain angles between the bottom edge and X-axis of the projection in XZ plane.Root
Z axis coordinate according to each point on the boundary of the projection in XZ plane judges the minimum point projected in XZ plane and highest point.By XZ
The minimum point of projection in plane is denoted as P0 ', and highest point is denoted as P1 ', and records Z axis coordinate Z0 ' and the highest point of minimum point P0 '
The Z axis coordinate Z1 ' of P1 '.With minimum point P0 ' for center of rotation, 3 d part model is rotated clockwise or counterclockwise around X-axis,
When each point on the projection bottom edge in XZ plane is not less than minimum point P0 ', and the Z coordinate value Z1 ' of highest point P1 ' is minimized
When, 3 d part model stops operating.At this point, 3 d part model is parallel with X-axis on the bottom edge of the projection of XZ plane, such as Fig. 4
It is shown.
So far, the bottom surface of 3 d part model has two lines parallel with X/Y plane in the plane, so 3 d part mould
The bottom surface of type is substantially parallel with X/Y plane, and the highest point and the lowest point of 3 d part model adjusted is on rectangular coordinate system edge
The vertical range of Z axis is minimum, to keep the printing height of 3 d part model minimum, 3 d part model puts completion, this
When, it can star three-dimensional printer, start the printing of 3 d part model.
The arrangement method of 3 d part model of the invention can be realized by C++ programming language.For realizing of the invention
The C++ programming language code of the arrangement method of 3 d part model can store the controlling terminal with 3 D-printing system.Work as three-dimensional
When part model imported into controlling terminal, the arrangement method of 3 d part model of the invention can be executed automatically, complete three-dimensional zero
Part model is put, and is prepared for subsequent 3 D-printing.
The arrangement method of 3 d part model of the invention will need the 3 d part model printed to be alternatively arranged in order,
Part can be made non-interference, the part of side can be removed after the completion of printing, the part of the other side continues subsequent processing,
It is such as heat-treated, to improve the production efficiency of product.Distinguish again after 3 d part model is projected respectively to YZ and XZ plane
The step of being rotated around X-axis and Y-axis can be simple and quick adjustment by the horizontal position of 3 d part model so that 3 d part mould
The highest point and the lowest point of type is minimum along the vertical range of Z axis in rectangular coordinate system, and printing height is minimum, shortens subsequent printing
Time improves production efficiency.
Embodiment of above is only used to illustrate the technical scheme of the present invention and not to limit it, although referring to the above preferable embodiment party
Formula describes the invention in detail, those skilled in the art should understand that, it can be to technical solution of the present invention
It modifies or equivalent replacement should not all be detached from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a kind of arrangement method of 3 d part model, which is characterized in that comprise the following steps：
Step 1：3 d part model is imported, 3 d part model is placed in a fixed rectangular coordinate system XYZ；
Step 2：The feature for identifying 3 d part model, preset condition and known another characteristic are compared, and are tied according to comparison
Fruit puts 3 d part model；
Step 3：3 d part model is rotated rotating around X-axis and Y-axis, the coordinate of 3 d part model is adjusted, makes adjusted
The highest point and the lowest point of 3 d part model is minimum along the vertical range of Z axis in rectangular coordinate system, to make 3 d part mould
The printing height of type is minimum.
2. the arrangement method of 3 d part model as described in claim 1, which is characterized in that the number of the 3 d part model
Amount is at least one.
3. the arrangement method of 3 d part model as described in claim 1, which is characterized in that execute step 1 and import three-dimensional zero
It further include step after part model：
Judge whether the 3 d part model needs to overturn, and does not overturn according to judging result overturning or the 3 d part mould
Type.
4. the arrangement method of 3 d part model as claimed in claim 2, which is characterized in that the preset condition is part mould
Type quantity, part model classification and part model manufacturing procedure, step 2 include：
The number of parts and structure in each 3 d part model are identified, according to the number of number of parts or the knot of part
The 3 d part model is alternatively arranged by structure classification or the manufacturing procedure of part in order.
5. the arrangement method of 3 d part model as claimed in claim 4, the step 2 include：
It will be positioned at 3 d part model projection in rectangular coordinate system XYZ to X/Y plane；
3 d part model is turned about the Z axis, 3 d part model is made to be parallel to Y-axis or X-axis on one side in the projection of X/Y plane.
6. the arrangement method of 3 d part model as described in claim 1, which is characterized in that in step 1, the 3 d part
Model is the physical model file that can be used for 3 D-printing system, and file format includes .stl .stp or .igs.
7. the arrangement method of 3 d part model as claimed in claim 3, which is characterized in that judge the 3 d part model
Whether need to overturn, and overturns according to judging result or do not overturn the 3 d part model and further include：
If the open end of the 3 d part model is upward, determine that the 3 d part model does not need to overturn, described three
Dimension part model remains stationary；
If the open end of the 3 d part model is downward, determine that the 3 d part model needs to overturn 180 °, it is described
3 d part model is rotated 180 °.
8. the arrangement method of 3 d part model as described in claim 1, which is characterized in that the rectangular coordinate system XYZ is
Cartesian cartesian coordinate system, step 3 further include：
It will be positioned at 3 d part model projection in rectangular coordinate system XYZ to YZ plane；
Judge the minimum point projected in YZ plane and highest point, and records the Z axis coordinate of minimum point and highest point；
It by 3 d part model using minimum point as center of rotation, is rotated clockwise or counterclockwise around X-axis, the projection in YZ plane
Each point on bottom edge is not less than minimum point, and when the Z axis coordinate of highest point is minimized, and 3 d part model stops turning
It is dynamic.
9. the arrangement method of 3 d part model as claimed in claim 8, which is characterized in that step 3 further includes：
By postrotational 3 d part model projection to XZ plane；
Judge the minimum point projected in XZ plane and highest point, and records the Z axis coordinate of minimum point and highest point；
It by 3 d part model using minimum point as center of rotation, is rotated clockwise or counterclockwise around Y-axis, the projection in XZ plane
Each point is not less than minimum point on bottom edge, and when the Z axis coordinate of highest point is minimized, 3 d part model stops operating.
10. the arrangement method of 3 d part model as claimed in claim 9, which is characterized in that after executing the step 3, institute
The method of stating further includes step：
Start three-dimensional printer, starts to print the 3 d part model.
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| CN201810897601.5A CN108859110B (en) | 2018-08-08 | 2018-08-08 | Method for placing three-dimensional part model |
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| CN201810897601.5A CN108859110B (en) | 2018-08-08 | 2018-08-08 | Method for placing three-dimensional part model |
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| CN110435155A (en) * | 2019-08-25 | 2019-11-12 | 上海漫格科技有限公司 | A kind of automatic direction optimization method of corona model based on 3 D-printing |
| CN113021900A (en) * | 2021-03-19 | 2021-06-25 | 山东白令三维科技有限公司 | Part model placing method in 3D printing and related device |
| CN114419301A (en) * | 2022-01-29 | 2022-04-29 | 上海漫格科技有限公司 | Three-dimensional model two-dimensional nesting placement method based on three-dimensional printing |
| CN114953468A (en) * | 2022-06-08 | 2022-08-30 | 南京铖联激光科技有限公司 | Method for typesetting 3D printing model |
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| CN108859110B (en) | 2020-09-11 |
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