CN110435155A - A kind of automatic direction optimization method of corona model based on 3 D-printing - Google Patents

A kind of automatic direction optimization method of corona model based on 3 D-printing Download PDF

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Publication number
CN110435155A
CN110435155A CN201910787109.7A CN201910787109A CN110435155A CN 110435155 A CN110435155 A CN 110435155A CN 201910787109 A CN201910787109 A CN 201910787109A CN 110435155 A CN110435155 A CN 110435155A
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China
Prior art keywords
model
corona
printing
corona model
directions
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CN201910787109.7A
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Chinese (zh)
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CN110435155B (en
Inventor
王松
张朝鑫
任泉珲
郁萌
安峰
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Shanghai Mange Technology Co Ltd
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Shanghai Mange Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/30Auxiliary operations or equipment
    • B29C64/386Data acquisition or data processing for additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y50/00Data acquisition or data processing for additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/753Medical equipment; Accessories therefor

Abstract

The automatic direction optimization method of the corona model that the present invention relates to a kind of based on 3 D-printing, solves the problems, such as the placing direction that corona model is faced before 3 D-printing, keeps the quality results of print time efficiency and printing more excellent;It for the staff for using other 3 D-printing softwares, reduces them and learns the time cost of complex software, while avoiding putting ineffective problem brought by other software;For manual operations, for the staff for adjusting corona model placing direction, their operating time is largely reduced, their manufacturing efficiency is improved.

Description

A kind of automatic direction optimization method of corona model based on 3 D-printing
Technical field
The present invention relates to three-dimensional printing technology field, in particular to a kind of automatic directions of corona model based on 3 D-printing Optimization method.
Background technique
It can be had the following problems in existing three-dimensional printing technology:
1, model direction optimizes in existing 3 D-printing software, is that user is allowed to go to be arranged or select certain parameters, such as model Z Axis height, bearing area, support volume, XY projected area etc., if the setting of these parameters is rationally, corona model can optimize To very suitable direction, it is suitable for 3 D-printing, but this operation, not small learning cost is needed, for really operating tooth It is preced with for the doctor or relevant staff of model 3 D-printing, it is very not practical, and also efficiency is very low.
2, some 3 D-printing software directions optimize, easy to operate, input various parameters without user, a key operation is Can, but it is this operation be not be suitable for gear division corona model direction optimize, optimization as a result, not being suitable for corona mould yet The 3 D-printing of type.
3, in many cases, the 3 D-printing of corona model needs operator model manually adjusts direction one by one, Convenient for adding support to corona model, then printed, this operation is no doubt feasible, but operation is time-consuming and laborious, and efficiency is very low.
For the above existing 3 D-printing, it would be highly desirable to improve.
Summary of the invention
The technical problem to be solved by the present invention is to overcome prior art disadvantage, provide a kind of corona based on 3 D-printing The automatic direction optimization method of model, solves the problems, such as the placing direction that corona model is faced before 3 D-printing, when making printing Between efficiency and the quality results of printing it is more excellent;For the staff for using other 3 D-printing softwares, reduces them and learn The time cost of complex software is practised, while avoiding putting ineffective problem brought by other software;For manual operations, For the staff for adjusting corona model placing direction, their operating time is largely reduced, their manufacturing is improved Efficiency.
In order to solve the above technical problems, technical solution provided by the invention are as follows: a kind of corona model based on 3 D-printing Automatic direction optimization method, which is characterized in that the method includes following operating procedures:
Step 1: first in three-dimensional space, uniform sampling obtains a certain number of directions, and the geometry for then analyzing corona model is special Sign, generates a certain number of directions, and realizing spatially to obtain in advance several may make corona put optimal direction of rotation;
Step 2: the direction that the direction and analysis geometrical characteristic that corona model is generated according to uniform sampling are generated rotates one by one, The height of model and the support volume of needs after analytical calculation rotation, height is smaller, and support volume is smaller, as optimal result;
Step 3: for the corona model containing multiple teeth, correct satisfaction can be calculated by step 1 to step 2 and is beaten The direction of print demand;For single or the very special corona of shape, height and the smallest five directions of volume are selected first, respectively For computation model according to this five directions to the postrotational retention volume of model, that maximum direction of calculated value obtains calculated result.
Further, the placement position of corona model needs the Z axis height of model low as far as possible, advantageously reduces and beats The time is printed, the efficiency of the manufacturing is improved, the opening up of corona is put, and is conducive to removal support after the completion of printing, is mentioned simultaneously High print quality.
Further, the retention maximum direction of volume is obtained by calculation in step 3, it is opening up to obtain corona model And the direction that level is put, as final placing direction.
The present invention has the advantage that in the present invention when to corona model 3 D-printing, the placing direction of corona model It is most important, it if placing direction is good, generates and supports, and removal support can more convenient, the tooth of printing in post-processing The quality for being preced with model is also higher.
Technical effect: the corona model of any form, any placing direction can be quickly and accurately by such method Direction is adjusted in rotation, is allowed to opening up, and Z axis height is minimum, is conducive to generate support, convenient for printing, saves work The time of personnel being largely manually operated.
For the operator with other software, the major advantage of the method:
1. not needing that intricate parameter is arranged in graphic user interface, it is only necessary to which clicking acknowledgement key can be obtained accurate knot Fruit;
2. in time efficiency, faster than other software;
3. putting in effect, got well than other software, is more suitable for corona model and generates support, and printing.
For manual operation, for the staff for adjusting corona model, the major advantage of the method is: saving work people Member's a large amount of quality time, especially if when having tens or even a corona model up to a hundred on platform.
Detailed description of the invention
Fig. 1 is the front view of optimization side's forward model one in the present invention.
Fig. 2 is the top view of optimization side's forward model one in the present invention.
Fig. 3 is the front view of model one after optimizing direction in the present invention.
Fig. 4 is the top view of model one after optimizing direction in the present invention.
Fig. 5 is the front view of optimization side's forward model two in the present invention.
Fig. 6 is the top view of optimization side's forward model two in the present invention.
Fig. 7 is the front view of model two after optimizing direction in the present invention.
Fig. 8 is the top view of model two after optimizing direction in the present invention.
Fig. 9 is the front view of optimization side's forward model three in the present invention.
Figure 10 is the top view of optimization side's forward model three in the present invention.
Figure 11 is the front view of model three after optimizing direction in the present invention.
Figure 12 is the top view of model three after optimizing direction in the present invention.
Specific embodiment
Step 1:, around X-axis, Y-axis, Z axis etc. uniform sampling obtains a certain number of directions first in three-dimensional space.So The geometrical characteristic of post analysis corona model generates a certain number of directions and (proposes spatially to obtain in advance and several may make tooth Hat puts optimal direction of rotation).
Step 2: the direction that the direction and analysis geometrical characteristic that corona model is generated according to uniform sampling are generated, one by one Rotation, the height of model after analytical calculation rotation, and the support volume needed.One weighting function is set, and parameter only has model Highly and support volume.Under normal conditions, model height is smaller, and support volume is smaller, i.e. the value of weighting function is smaller, Result that we need (propose according to the direction in step 1, rotate corona model one by one, simulation calculate it is postrotational as a result, It selects optimal).
Step 3: can be calculated by first step second step correct full for the corona model containing multiple teeth The direction of foot printing demand.But for single or the very special corona of shape, not enough, we select weighting function to this two step Be worth the smallest 5 directions, calculate separately model according to this 5 directions retention volume postrotational to model (rim of a cup detect, TrappedVolume), it is worth that maximum direction, is our calculated result.(optimal to put, corona opening is upward 's.Volume (trappedvolume) is retained using computation model, and finds the mode in the retention maximum direction of volume, obtains tooth It is preced with that model is opening up and the horizontal direction put, as our final placing directions.)
Below with reference to the embodiments of three kinds of corona models of different shapes, the present invention is described in further detail, to illustrate this The effect and accuracy of method.
Embodiment 1:
Model one, the c-type corona containing 14 coronas.In conjunction with Fig. 1-Fig. 4, optimization direction front and back model is opened according to Fig. 1 and Fig. 3 two One front view can be such that the Z height of corona model drops to minimum it is found that by context of methods.
The top view of optimization direction front and back model one is opened with Fig. 4 two according to fig. 2 it is found that by context of methods, tooth can be made It is preced with the open height of model upward.
In conjunction with the above two o'clock, the validity and accuracy of methods herein are demonstrated.
Embodiment 2:
Model two: the linear type corona containing 4 coronas.In conjunction with figure 5-8, optimization direction front and back mould is opened according to Fig. 5 and Fig. 7 two The front view of type two can be such that the Z height of corona model drops to minimum it is found that by context of methods.
The top view for opening optimization direction front and back model two according to Fig. 6 and Fig. 8 two can make tooth it is found that by context of methods It is preced with the open height of model upward.
In conjunction with the above two o'clock, the validity and accuracy of methods herein are demonstrated.
Embodiment 3:
Model three: the single tooth hat containing 1 corona model.In conjunction with Fig. 9-Figure 12, before opening optimization direction according to Fig. 9 and Figure 11 two The front view of model three can be such that the Z height of corona model drops to minimum it is found that by context of methods afterwards.
The top view for opening optimization direction front and back model three according to Figure 10 and Figure 12 two can make it is found that by context of methods The open height of corona model is upward.
In conjunction with the above two o'clock, the validity and accuracy of methods herein are demonstrated.
Although above the present invention is described in detail with a general description of the specific embodiments, On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause This, these modifications or improvements, fall within the scope of the claimed invention without departing from theon the basis of the spirit of the present invention.

Claims (3)

1. a kind of automatic direction optimization method of corona model based on 3 D-printing, which is characterized in that the method includes as follows Operating procedure:
Step 1: first in three-dimensional space, uniform sampling obtains a certain number of directions, and the geometry for then analyzing corona model is special Sign, generates a certain number of directions, and realizing spatially to obtain in advance several may make corona put optimal direction of rotation;
Step 2: the direction that the direction and analysis geometrical characteristic that corona model is generated according to uniform sampling are generated rotates one by one, The height of model and the support volume of needs after analytical calculation rotation, height is smaller, and support volume is smaller, as optimal result;
Step 3: for the corona model containing multiple teeth, correct satisfaction can be calculated by step 1 to step 2 and is beaten The direction of print demand;For single or the very special corona of shape, height and the smallest five directions of volume are selected first, respectively For computation model according to this five directions to the postrotational retention volume of model, that maximum direction of calculated value obtains calculated result.
2. the automatic direction optimization method of a kind of corona model based on 3 D-printing according to claim 1, feature exist In: the placement position of corona model needs the Z axis height of model low as far as possible, advantageously reduces the print time, improves production The efficiency of manufacture, the opening up of corona are put, and are conducive to removal support after the completion of printing, while improving print quality.
3. the automatic direction optimization method of a kind of corona model based on 3 D-printing according to claim 1, feature exist In: retention volume maximum direction is obtained by calculation in step 3, it is opening up and horizontal put to obtain corona model Direction, as final placing direction.
CN201910787109.7A 2019-08-25 2019-08-25 Automatic direction optimization method of dental crown model based on three-dimensional printing Active CN110435155B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110435155B (en) * 2019-08-25 2021-05-04 上海漫格科技有限公司 Automatic direction optimization method of dental crown model based on three-dimensional 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

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WO2016026820A1 (en) * 2014-08-19 2016-02-25 Materialise N.V. Slice area distribution for obtaining improved performance in additive manufacturing techniques
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CN108859110A (en) * 2018-08-08 2018-11-23 广东汉邦激光科技有限公司 The arrangement method of 3 d part model
US20190046293A1 (en) * 2017-08-08 2019-02-14 Ormco Corporation Methods of manufacture of dental appliances using 3d printing, and products produced therefrom

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CN110435155B (en) * 2019-08-25 2021-05-04 上海漫格科技有限公司 Automatic direction optimization method of dental crown model based on three-dimensional printing

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Publication number Priority date Publication date Assignee Title
WO2012131481A1 (en) * 2011-03-29 2012-10-04 Inspire Ag, Irpd Part structure built by metal powder based added manufacturing
WO2016026820A1 (en) * 2014-08-19 2016-02-25 Materialise N.V. Slice area distribution for obtaining improved performance in additive manufacturing techniques
CN104890238A (en) * 2015-04-30 2015-09-09 北京敏速自动控制设备有限公司 Three-dimensional printing method and system thereof
CN108099203A (en) * 2016-11-25 2018-06-01 达索***公司 For the orientation of the real object of 3D printings
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110435155B (en) * 2019-08-25 2021-05-04 上海漫格科技有限公司 Automatic direction optimization method of dental crown model based on three-dimensional 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

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