CN104309127A - Hollow model printing method - Google Patents
Hollow model printing method Download PDFInfo
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- CN104309127A CN104309127A CN201410576968.9A CN201410576968A CN104309127A CN 104309127 A CN104309127 A CN 104309127A CN 201410576968 A CN201410576968 A CN 201410576968A CN 104309127 A CN104309127 A CN 104309127A
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Abstract
The invention discloses a hollow model printing method which specifically comprises the following steps: obtaining a three-dimensional model of a printed object as an original model; dividing the original model into a cover layer model and a filling layer model; calculating coordinates of points on the dividing surface of the cover layer model and the filling layer model; analyzing and extracting the coordinates of the points on the inner surface of the cover layer model corresponding to the characteristics points of the cover layer model; establishing a characteristic point coordinate set; establishing a central sphere overlapped with the center of the filling layer model; analyzing and establishing support rods through which the central sphere is connected to points of the characteristic point coordinate set; forming a support rack model through the central sphere and the support rods; combining the cover layer model and the support rack model into a printing model; and printing according to the printing model, thereby obtaining the printed object of a hollow structure. By adopting the hollow model printing method disclosed by the invention, the cost of a raw material is reduced, and the efficiency is improved.
Description
Technical field
The present invention relates to three-dimensional printing technology field, particularly relate to a kind of hollow mould Method of printing.
Background technology
3 D-printing also claims 3D to print (Three Dimensions Printing), belongs to the one of RP technique.It is a kind of based on mathematical model file, uses powdery metal or plastics etc. can jointing material, is carried out the technology of constructed object by the mode successively printed.Past, its field such as Making mold, industrial design of being everlasting was used to modeling, now just gradually for the direct manufacture of some products, particularly some high-value products (such as hip joint or tooth, or airplane component) have had the parts using this technology to print.3 D-printing normally adopts digital technology file printing machine to realize, and because three-dimensional printing technology is comparatively complicated, therefore 3 D-printing cost is also comparatively high.
3 D-printing, also claiming to increase material manufacture or lamination moulding, is the process utilizing mathematical model to process physical object.In process, build print object by successively dosing material.The solid printing model of usual 3 D-printing, printing be the volume of whole object, compare waste material.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of hollow mould Method of printing, be conducive to the cost that saves material, raise the efficiency.
A kind of hollow mould Method of printing that the present invention proposes, archetype is divided into skinning layer model and packed layer model, and packed layer model hollow out is formed bracing frame model, by skinning layer model and bracing frame model group synthesis printer model, and print according to printer model, concrete steps are as follows:
Obtain the threedimensional model of print object as archetype;
Archetype is divided into skinning layer model and packed layer model, calculates the coordinate of the point on skinning layer model and packed layer model divisional plane;
Analyze the coordinate of the point extracting skinning layer mold inner surfaces corresponding to skinning layer model characteristic point, set up characteristic point coordinate set;
Set up the center spheroid overlapped with packed layer model center;
Analyze and set up the pole that center spheroid is connected to each point in characteristic point coordinate set, center spheroid and pole are combined into bracing frame model;
By skinning layer model and bracing frame model group synthesis printer model;
Print according to printer model, obtain the print object of hollow-core construction.
Preferably, packed layer model outer surface is smooth surface.
Preferably, with the coordinate of initial model central point for the point on initial point calculating skinning layer model and packed layer model divisional plane.
Preferably, characteristic point comprises the point on skinning layer model outer surface and packed layer outer surface tangent line or tangent plane.
Hollow mould Method of printing provided by the invention, archetype is generated according to print object, and archetype is divided into skinning layer model and packed layer model, by retaining skinning layer model to obtain the outward appearance consistent with archetype, and by changing packed layer model into bracing frame model, thus hollow out is carried out to archetype inside, economize in raw materials and the time-write interval.
Bracing frame model is regenerated by center spheroid and characteristic point coordinate set in the present invention, reach the effect of packed layer model hollow out, turn avoid simultaneously on packed layer model, directly calculate the loaded down with trivial details of openwork part and restriction, the foundation of bracing frame model is made to have more flexibility, and reduce amount of calculation, increase work efficiency.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of hollow mould Method of printing that the present invention proposes.
Detailed description of the invention
With reference to Fig. 1, a kind of hollow mould Method of printing that the present invention proposes, is divided into skinning layer model and packed layer model by archetype, and packed layer model hollow out is formed bracing frame model, by skinning layer model and bracing frame model group synthesis printer model, and print according to printer model.
This method concrete steps are as follows:
The threedimensional model of S1, acquisition print object is as archetype.
S2, archetype is divided into skinning layer model and packed layer model, calculates the coordinate of the point on skinning layer model and packed layer model divisional plane.
Skinning layer model and packed layer model are separated by model, therefore skinning layer mold inner surfaces and packed layer model outer surface overlap, point on cortex mold inner surfaces and packed layer model outer surface overlaps one by one, namely as identical in model center point coordinates relative to same point.
In present embodiment, with initial model central point for initial point to calculate on skinning layer model and packed layer model divisional plane the coordinate of the point that i.e. skinning layer mold inner surfaces and packed layer model outer surface overlap one by one.Initial model central point is the central point of skinning layer model and packed layer model, is initial point with central point, is conducive to carrying out analytic operation respectively to skinning layer model and packed layer model in subsequent step and also produces the result matched.
S3, analyze the coordinate of the point extracting skinning layer mold inner surfaces corresponding to skinning layer model characteristic point, set up characteristic point coordinate set.
The center spheroid that S4, foundation overlap with packed layer model center.
The pole that center spheroid is connected to each point in characteristic point coordinate set is set up in S5, analysis, and center spheroid and pole are combined into bracing frame model.
In step S3, characteristic point comprises the point on skinning layer model outer surface and packed layer outer surface tangent line or tangent plane, because tangent line or tangent plane are the weakest, listed in characteristic point, thus can pole supporting be set, thus can reinforce it, ensure the reliability of printer model.
In step in S2, packed layer model outer surface is smooth surface, and namely skinning layer mold inner surfaces is smooth surface, so can be convenient to the collection of characteristic point and the design of pole.
This step S5, bracing frame model is regenerated by center spheroid and characteristic point coordinate set, reach the effect of packed layer model hollow out, turn avoid simultaneously on packed layer model, directly calculate the loaded down with trivial details of openwork part and restriction, the foundation of bracing frame model is made to have more flexibility, and reduce amount of calculation, increase work efficiency.
S6, by skinning layer model and bracing frame model group synthesis printer model.
Because skinning layer model is not made an amendment, can ensure that printer model is consistent with archetype outward appearance.And bracing frame model is centered by the spheroid of center, by each strut support skinning layer model, because the effect of power has reciprocity, pole extends out against skinning layer mold inner surfaces from the surface of astrosphere body, center spheroid uniform force can be ensured, thus improve the solid and reliable of bracing frame model.
S7, to print according to printer model, obtain the print object of hollow-core construction.
This method is passed through to retain skinning layer model to obtain the outward appearance consistent with archetype, and by changing packed layer model into bracing frame model, thus hollow out is carried out to archetype inside, economize in raw materials and the time-write interval.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (4)
1. a hollow mould Method of printing, it is characterized in that, archetype is divided into skinning layer model and packed layer model, and packed layer model hollow out is formed bracing frame model, by skinning layer model and bracing frame model group synthesis printer model, and print according to printer model, concrete steps are as follows:
Obtain the threedimensional model of print object as archetype;
Archetype is divided into skinning layer model and packed layer model, calculates the coordinate of the point on skinning layer model and packed layer model divisional plane;
Analyze the coordinate of the point extracting skinning layer mold inner surfaces corresponding to skinning layer model characteristic point, set up characteristic point coordinate set;
Set up the center spheroid overlapped with packed layer model center;
Analyze and set up the pole that center spheroid is connected to each point in characteristic point coordinate set, center spheroid and pole are combined into bracing frame model;
By skinning layer model and bracing frame model group synthesis printer model;
Print according to printer model, obtain the print object of hollow-core construction.
2. hollow mould Method of printing as claimed in claim 1, it is characterized in that, packed layer model outer surface is smooth surface.
3. hollow mould Method of printing as claimed in claim 1, is characterized in that, with initial model central point for initial point calculates the coordinate of the point on skinning layer model and packed layer model divisional plane.
4. hollow mould Method of printing as described in claim 1 or 2 or 3, is characterized in that, characteristic point comprises the point on skinning layer model outer surface and packed layer outer surface tangent line or tangent plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410576968.9A CN104309127B (en) | 2014-10-24 | 2014-10-24 | A kind of hollow mould Method of printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410576968.9A CN104309127B (en) | 2014-10-24 | 2014-10-24 | A kind of hollow mould Method of printing |
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| Publication Number | Publication Date |
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| CN104309127A true CN104309127A (en) | 2015-01-28 |
| CN104309127B CN104309127B (en) | 2018-01-26 |
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| CN201410576968.9A Active CN104309127B (en) | 2014-10-24 | 2014-10-24 | A kind of hollow mould Method of printing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107212938A (en) * | 2017-04-05 | 2017-09-29 | 深圳市倍康美医疗电子商务有限公司 | A kind of tooth mould hollow mould and its forming method |
| CN107428082A (en) * | 2015-04-17 | 2017-12-01 | Eos有限公司电镀光纤系统 | The production successively automatic generation method of the control instruction of construction device and control instruction generation unit |
| CN107457995A (en) * | 2017-09-18 | 2017-12-12 | 安阳工学院 | Five-axle linkage 3D printing method based on nurbs surface description |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102029715A (en) * | 2010-10-25 | 2011-04-27 | 江苏文光车辆附件有限公司 | SLA (stereo lithography) technology of light curing stereo homocentric sphere |
| CN202742679U (en) * | 2012-09-21 | 2013-02-20 | 重庆电子工程职业学院 | Rapid prototype machine |
| CN103568325A (en) * | 2013-11-08 | 2014-02-12 | 中国科学技术大学 | Three-dimensional printing method |
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2014
- 2014-10-24 CN CN201410576968.9A patent/CN104309127B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029715A (en) * | 2010-10-25 | 2011-04-27 | 江苏文光车辆附件有限公司 | SLA (stereo lithography) technology of light curing stereo homocentric sphere |
| CN202742679U (en) * | 2012-09-21 | 2013-02-20 | 重庆电子工程职业学院 | Rapid prototype machine |
| CN103568325A (en) * | 2013-11-08 | 2014-02-12 | 中国科学技术大学 | Three-dimensional printing method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107428082A (en) * | 2015-04-17 | 2017-12-01 | Eos有限公司电镀光纤系统 | The production successively automatic generation method of the control instruction of construction device and control instruction generation unit |
| CN107212938A (en) * | 2017-04-05 | 2017-09-29 | 深圳市倍康美医疗电子商务有限公司 | A kind of tooth mould hollow mould and its forming method |
| CN107457995A (en) * | 2017-09-18 | 2017-12-12 | 安阳工学院 | Five-axle linkage 3D printing method based on nurbs surface description |
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| Publication number | Publication date |
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| CN104309127B (en) | 2018-01-26 |
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Effective date of registration: 20171221 Address after: 241200 Anhui city of Wuhu province Fanchang County Economic Development Zone CISCO Park Building 6 times Applicant after: Wuhu woods one Electronic Science and Technology Co., Ltd. Address before: 230000 Hefei science and Technology Park, Anhui, Hefei Road, No. 602 Mount Huangshan Road, hi tech Zone, B501 Applicant before: HEFEI SKE INTELLIGENT TECHNOLOGY CO., LTD. |
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