CN105058798A - Supporting module for fused deposition modeling three-dimensional printing and generating method of supporting module - Google Patents
Supporting module for fused deposition modeling three-dimensional printing and generating method of supporting module Download PDFInfo
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- CN105058798A CN105058798A CN201510514268.1A CN201510514268A CN105058798A CN 105058798 A CN105058798 A CN 105058798A CN 201510514268 A CN201510514268 A CN 201510514268A CN 105058798 A CN105058798 A CN 105058798A
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Abstract
The invention discloses a supporting module for fused deposition modeling three-dimensional printing and a generating method of the supporting module. The supporting module is used for supporting the suspended portion of a model needing three-dimensional printing. The supporting module comprises multiple supporting units arranged at intervals to provide multiple fixation points for the suspended portion. Compared with an original supporting module, the supporting module can be more easily removed from the suspended portion of the model while the supporting performance is kept.
Description
Technical field
The present invention relates to fused deposition modeling 3 D-printing (FDM) field, particularly a kind of 3 D-printing method of supporting module of fused deposition modeling 3 D-printing and generation method thereof and the model that uses the carrying out of this supporting module to print.
Background technology
Fused deposition modeling 3 D-printing (FDM) technology refer to printed material is heated to a certain exceed the temperature of material melting point after, material is molten into viscosity semi liquid state.Extrude printed material by nozzle, touch cooling solidification after platform or the material that prints before, form one deck solid.Under program control, this process repeatedly, in layer stacking go out the solid structure of threedimensional model of requirement.
Caused by the characteristic of fused deposition modeling 3 D-printing (FDM), (be empty under certain part in model when there is suspending part in the model needing printing, as bridge), molten material after extruding nowhere set also just cannot be shaped, in order to solve this problem, the method for adding supporting module generally can be taked.Supporting module independent of the model that need print, for the suspending part of the model that need print provides fixation point.After model has printed, suspending part is solidified as solid, now just supporting module can be removed.
Supporting module must meet two conditions, and one is stabilized structure, can provide enough and stable support force for the suspending part of the model that need print; Two is be easy to remove, and can not bond too tightly with the model that need print, thus model solidify after cannot peel off.
Existing supporting module is generally divided into the methods such as a support, line support and face support:
It is specify by set algorithm or artificial mode the point (such as some needs the local minimum point of printer model) the most easily caved in the model that need print that point supports, and generates columnar stays module.This method for supporting can reach support effect with minimum structure, also the most easily peels off.But this method for supporting needs manual intervention usually, automatic algorithms easily omit need support point, no matter and automatic or artificial mode, once miss need support point, the whole printer model that needs all likely can be affected.
It is that in the model that need be printed by set algorithm, the below of all unsettled parts prints in the mode of linear filling and generates sheet supporting module that line supports.The benefit that line supports is that generative process does not need manual intervention completely, and the situation of omitting also can not occur.But compare a support, line supports to be needed to print more supporting module, and its interstitial wire automatically generated also not necessarily just in time can support the point needed most.
Face support is the improvement on above-mentioned line brace foundation, and it has two kinds of implementation methods, and one directly increases line to support interstitial wire quantity, until do not have space between the lines.Another kind is that to calculate which region in the supporting module that current line supports by set algorithm be really contact with the model that need print, and these regions are printed as face, and remaining region still prints in the mode of line.Support relative to line, the supporting module that face supports is more firm, and the surface needing printer model to contact with supporting module is more closely knit smooth.But support the contact point printing model and its supporting module formed owing to using face more, bond also tightr between model and support, be more not easy to remove.
Please also refer to Fig. 1 and Fig. 2, which respectively show the longitudinal section sectional view after the supporting module of a kind of fused deposition modeling 3 D-printing of the longitudinal section sectional view after the supporting module of fused deposition modeling 3 D-printing ideally and model printing shaping and prior art and model printing shaping.As depicted in figs. 1 and 2, supporting module 1 ' is arranged at the below of the suspending part 21 ' of model 2 ', for providing fixation point for suspending part 21 ' in print procedure, supports suspending part 21 '., between the upper surface a of supporting module 1 ' and the lower surface b of suspending part 21 ', there is gap, each other and adhesion, so that printed rear removal supporting module 1 ' shown in Fig. 1 ideally.And due to error can be there is in actual print procedure, as shown in Figure 2, can be uneven between the upper surface a of supporting module 1 ' and the lower surface b of suspending part 21 ', the adhesion of indivedual point between generating plane and face, the quantity of adhesion point 3 ' directly determines the bondability of supporting module 1 ' and model 2 ', adhesion point more than 3 ', supporting module 1 ' is more difficult to remove.
Therefore, object of the present invention is exactly on the basis of not lowering the stability of strutting system that face supports and line supports, to make supporting module be more prone to remove.
Summary of the invention
For defect of the prior art, the object of this invention is to provide supporting module and the generation method thereof of fused deposition modeling 3 D-printing, this supporting module, compared to supporting module in the past, can, while keeping the performance supported, be easy to remove from the suspending part of model more.
A kind of supporting module of fused deposition modeling 3 D-printing is provided according to an aspect of the present invention, for supporting the suspending part of the model needing 3 D-printing, it is characterized in that, described supporting module comprises multiple support units of spaced arrangement, to provide multiple fixation point to a described suspending part.
Preferably, the cross section of described supporting module shape and size and described suspending part this cross section the profile of transverse projection planar identical.
Preferably, the cross section of each not crossing with described profile described support unit is hexagon, and in cellular arrangement between described support unit.
Preferably, the cross section of each not crossing with described profile described support unit is rectangle, and the arrangement in matrix between described support unit.
Preferably, the cross section of each not crossing with described profile described support unit is triangle, and in positive and negative alternate setting between adjacent described support unit.
Preferably, described support unit is made up of thermoplastic.
According to another aspect of the present invention, a kind of generation method of supporting module of above-mentioned fused deposition modeling 3 D-printing is also provided, it is characterized in that, comprise the steps: to generate multiple support unit, multiple described support unit is arranged, form array, the position of described array is corresponding with the suspending part of model, and the size of described array is greater than the size of described suspending part; Successively choose the common factor of described suspending part and described array after described array is crossing with described model, generate described supporting module.
Preferably, choose suspending part described in and comprise following sub-step to the step of the common factor of array: the image successively choosing described suspending part cross section corresponding in the projection and described array of every one deck occurs simultaneously.
According to a further aspect of the invention, also provide a kind of 3 D-printing method of model, it is characterized in that, comprise the steps: to generate the model that need print, described model has at least one suspending part; Generate supporting module, this step is generate described supporting module according to above-mentioned generation method, and described supporting module is positioned at the below of described suspending part; Successively print described model and described supporting module; The suspending part of described supporting module from described model is removed.
Compared to prior art, the supporting module of fused deposition modeling 3 D-printing provided by the invention and Method of printing thereof are by replacing with multiple separate and supporting module of spaced support unit composition by all-in-one-piece supporting module of the prior art, between multiple support unit, spacing is very little, dense arrangement, make the suspending part of model little in the change of its Area of bearing, when support performance does not almost change, with the adhesion point quantity of each support unit much smaller than the adhesion point quantity with integral support module of the prior art, and, each support unit can be removed from the suspending part of model independently, therefore, greatly reduce the dismounting difficulty of supporting module.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the longitudinal section sectional view after the supporting module of fused deposition modeling 3 D-printing ideally and model printing shaping;
Fig. 2 is the longitudinal section sectional view after the supporting module of a kind of fused deposition modeling 3 D-printing of prior art and model printing shaping;
Fig. 3 is the longitudinal section sectional view after the supporting module of the fused deposition modeling 3 D-printing of the first embodiment of the present invention and model printing shaping;
Fig. 4 is the cross section view of the supporting module of the fused deposition modeling 3 D-printing of the first embodiment of the present invention;
Fig. 5 is the flow chart of the generation method of the supporting module of fused deposition modeling 3 D-printing of the present invention;
Fig. 6 be in the generative process of the first embodiment of the present invention array and suspending part formed occur simultaneously before the transverse projection structural representation of suspending part that is located in the same horizontal plane;
Fig. 7 be with Fig. 6 in be in the cross-sectional structure schematic diagram of the array in same level;
Fig. 8 is the flow chart of the 3 D-printing method of model of the present invention;
Fig. 9 is the cross section view of the supporting module of the fused deposition modeling 3 D-printing of the second embodiment of the present invention;
Figure 10 be in the generative process of the second embodiment of the present invention array and suspending part formed occur simultaneously before the cross-sectional structure schematic diagram of array that is located in the same horizontal plane;
Figure 11 is the cross section view of the supporting module of the fused deposition modeling 3 D-printing of the third embodiment of the present invention;
Figure 12 be in the generative process of the third embodiment of the present invention array and suspending part formed occur simultaneously before the cross-sectional structure schematic diagram of array that is located in the same horizontal plane; And
Figure 13 is the longitudinal section sectional view after the supporting module of the fused deposition modeling 3 D-printing of one embodiment of the present of invention and model printing shaping.
Detailed description of the invention
Below in conjunction with drawings and Examples, technology contents of the present invention is described further.It should be noted that, the supporting module in following embodiment and accompanying drawing is all supported for example with face and is described, but is not limited to this, and it can be applied in the supporting way that line supports equally.
First embodiment
Refer to Fig. 3 and Fig. 4, which respectively show the cross section view of the longitudinal section sectional view after the supporting module of the fused deposition modeling 3 D-printing of the first embodiment of the present invention and model printing shaping and supporting module.Model 2 has one or more suspending part.Supporting module 1 is arranged in a suspending part of model 2.Be described for model 2 suspending part 21 in Fig. 3.Supporting module 1 is arranged at the below of the suspending part 21 of model 2, in the process of printer model 2 for suspending part 21 provides multiple fixation point, support suspending part 21, to be printed complete after, the below of supporting module 1 from the suspending part 21 of model 2 is removed.In the embodiment shown in Fig. 3 and Fig. 4, the suspending part that, transverse projection profile rectangular for longitudinal projection's profile is star is described, and wherein, longitudinally refers to the short transverse along model 2, laterally refers in the horizontal direction.But not as limit, supporting module of the present invention can be applied to the suspending part of the model of all shapes.
As shown in Figure 3 and Figure 4, in a preferred embodiment of the invention, supporting module 1 comprises: the support unit 11 of multiple spaced arrangement.
In order to effectively play support effect while, do not make adjacent support unit 11 stick together each other, therefore, the interval between two often adjacent support units 11 is preferably 0.4 millimeter, about the distance at this interval is equivalent to a live width.Support unit 11 is made up of thermoplastic.Specifically, support unit 11 can be made up of materials such as wax, ABS plastic, PC, nylon.Preferably, support unit 11 is identical with the material that model 2 uses, and makes it that the molten long-pending type 3 D-printing equipment of single spraying head can be used to carry out thread feed.
The shape and size of the cross section of the supporting module 1 be made up of multiple support unit 11 preferably with the suspending part 21 of model 2 this cross section the profile of transverse projection planar roughly the same.Multiple support unit 11 can be divided into edge supports unit 111 and central supported unit 112.Wherein, edge supports unit 111 refers to the most external being arranged at supporting module 1, the support unit crossing with the profile of the transverse projection of suspending part 21.Central supported unit 112 refers to and is arranged at inner, not crossing with the profile of the transverse projection of suspending part 21 support unit of supporting module 1.In the embodiment shown in fig. 4, the profile of the transverse projection of suspending part 21 is star.The cross section of each central supported unit 112 is hexagon.All in cellular arrangement between multiple support unit 11.The cross-sectional area of each central supported unit 112 is preferably 100 square millimeters, thus plays effective supporting role to the suspending part 21 of model 2.
From the embodiment shown in Fig. 3 and Fig. 4, in an embodiment of the present invention, be made up of multiple separate and spaced support unit 11 due to supporting module 1 is replaced with by monoblock type of the prior art, the very little and dense arrangement of spacing between multiple support unit 11, make the suspending part 21 of model 2 little in the change of its Area of bearing, when support performance does not almost change, with adhesion point 3 quantity of each support unit 11 much smaller than the adhesion point 3 ' quantity with integral support module of the prior art (can see the supporting module 1 ' in Fig. 2), and, each support unit 11 can be removed from the suspending part 21 of model 2 independently, therefore, greatly reduce the dismounting difficulty of supporting module 1.
Please also refer to Fig. 5 to Fig. 7, wherein, Fig. 5 shows the flow chart of the generation method of the supporting module of fused deposition modeling 3 D-printing of the present invention, Fig. 6 and Fig. 7 respectively illustrate array and suspending part in generative process formed occur simultaneously before the structural representation of the transverse projection of suspending part that is located in the same horizontal plane and the cross section of array.Specifically, the present invention also provides the generation method of the supporting module of fused deposition modeling 3 D-printing described in a kind of above-mentioned Fig. 3 and Fig. 4.It should be noted that, this generation method refers to the generation method of the 3-D graphic of supporting module, namely operates on three-dimensional software, forms the series of steps of the 3-D graphic process of supporting module.Model and supporting module are according to this generation method on three-dimensional software after generating three-dimensional figures shape, by the figure of printing device according to this generation, carry out printing according to the printing path preset.As shown in Figure 5, described generation method comprises the steps:
Step S100: generate multiple support unit 11, arranges multiple support unit 11, forms array 12 (can with reference to figure 7).The position of array 12 is corresponding with the suspending part 21 of the model 2 that need print, and the size of array 12 is greater than the size of suspending part 21.Wherein, the 3-D graphic of the model 2 that need print generates prior to the 3-D graphic of supporting module 1 in the print procedure of model 2 and supporting module 1, and model 2 at least has a suspending part 21.In this embodiment, the profile of suspending part 21 longitudinal projection of the model 2 that need print is roughly rectangular, the profile of its transverse projection 211 is star (can with reference to figure 6), and the cross section of each support unit 11 of array 12 is hexagon, in honeycomb arrangement between support unit 11.The size of array 12 is greater than the size of the suspending part 21 of model 2.
Step S200: successively choose suspending part 21 and the common factor of array 12 after array 12 is crossing with model 2, generate supporting module 1.It should be noted that, successively referring to along having certain thickness multiple stacked and stacked direction of the plane that is parallel to each other described in the present invention.Preferably, in this embodiment, described successively choosing refers to that longitudinally (i.e. the short transverse of model 2) is successively chosen with certain thickness, and every one deck splits formation along the horizontal plane.Further, choose suspending part 21 described in and comprise following sub-step to the step of the common factor of array 12: the image successively choosing suspending part 21 cross section corresponding in the projection and array 12 of every one deck occurs simultaneously.In this embodiment, suspending part 21 is transverse projection in the projection of every one deck, and the cross section of array 12 is cross section.Fig. 5 and Fig. 6 is respectively the cross section of the array 12 in same level and the transverse projection 211 of suspending part 21, and as shown in Figure 5 and Figure 6, the transverse projection 211 of suspending part 21 is in star.After choosing common factor, form the cross section of the supporting module 1 of this layer, as shown in Figure 4.
Retouch limit after generating supporting module according to above-mentioned steps S100 and step S200 layer by layer and print and fill, supporting module 1 can be formed.
Refer to Fig. 8, it illustrates the flow chart of the 3 D-printing method of model of the present invention.Specifically, the present invention also provides a kind of Method of printing of above-mentioned model 2.As shown in Figure 8, described Method of printing comprises the steps:
Step S10: generate the model 2 that need print, model 2 has at least one suspending part 21.
Step S20: the generation method according to the supporting module of above-mentioned fused deposition modeling 3 D-printing generates supporting module 1, and supporting module 1 is positioned at the below of suspending part 21.
Step S30: successively printer model 2 and supporting module 1.Wherein, successively printer model 2 and supporting module 1 refer to that successively retouching limit to model 2 and supporting module 1 fills with printing.Preferably, in this embodiment, supporting module 1 and model 2 print simultaneously, provide support while printer model 2 for its suspending part 21.
Step S40: the suspending part 21 of supporting module 1 from model 2 is gone, the model 2 that need print can be obtained.
Second embodiment
Refer to Fig. 9 and Figure 10, which respectively show array and suspending part in the cross section view of the supporting module of the fused deposition modeling 3 D-printing of the second embodiment of the present invention and print procedure and form the cross section view of the array before occuring simultaneously.With the first embodiment shown in above-mentioned Fig. 4 unlike, as shown in Figure 9, between support unit 11 in matrix arrangement, the cross section of each central supported unit 112 is rectangle.And then in order to realize the cross section of the supporting module 1 shown in above-mentioned Fig. 9, in this embodiment, before array 12 and suspending part 21 are formed and occur simultaneously, the cross section of each support unit 11 is rectangle, and the arrangement in matrix between support unit 11, as shown in Figure 10.This embodiment can be achieved equally, and it will not go into details herein.
3rd embodiment
Refer to Figure 11 and Figure 12, which respectively show array and suspending part in the cross section view of the supporting module of the fused deposition modeling 3 D-printing of the third embodiment of the present invention and print procedure and form the cross section view of the array before occuring simultaneously.With the first embodiment shown in above-mentioned Fig. 4 unlike, as shown in figure 11, in positive and negative alternate setting between adjacent support unit 11, the cross section of each central supported unit 112 is triangle.Wherein, positive and negative alternate setting (can with reference to Figure 12) refer to each cross section be leg-of-mutton support unit 11 with in its same plane up and down or the shape of the adjacent support unit 11 in left and right contrary, for the triangular cross section of a support unit 11, its triangle formed after carrying out revolving turnback with leg-of-mutton center is the shape of cross section of its adjacent support unit.
And then, in order to realize the cross section of the supporting module 1 shown in above-mentioned Figure 11, in this embodiment, before the array formed at support unit 11 and suspending part 21 are formed and occur simultaneously, the cross section of each support unit 11 is triangle, and in positive and negative alternate setting between adjacent support unit 11.As shown in figure 12.This embodiment can be achieved equally, and it will not go into details herein.
Other embodiments
In conjunction with above-mentioned Fig. 3 to embodiment illustrated in fig. 12, further, in further embodiments, the shape of cross section between support unit 11 can be different.Such as, in multiple support unit 11, the cross section of a part of support unit 11 can be hexagon, a part of support unit 11 cross section can cross section that is rectangular, another part support unit 11 can be triangular in shape.Do not repeat them here.
In addition, because the shape of the suspending part 21 of each model 2 that need print may be different, therefore, the shape of supporting module 1 also needs to change accordingly according to the shape of suspending part 21.Such as shown in Figure 13, the longitudinal section of suspending part 21 is not rectangle, and it has the chamfering of an arc-shaped, and in this embodiment, the shape of the part support unit 11 of support component 1 also will change accordingly.Further, the shape of cross section of supporting module 1 also planar can project with suspending part 21 and change accordingly, and such as, the cross section of supporting module 1 is rectangle, circular etc.These embodiments all can be achieved, and do not repeat them here.
In sum, in conjunction with the embodiment shown in above-mentioned Fig. 3 to Figure 13, those skilled in the art understand, the supporting module of fused deposition modeling 3 D-printing of the present invention and Method of printing thereof are by replacing with multiple separate and supporting module of spaced support unit composition by all-in-one-piece supporting module of the prior art, between multiple support unit, spacing is very little, dense arrangement, make the suspending part of model little in the change of its Area of bearing, when support performance does not almost change, with the adhesion point quantity of each support unit much smaller than the adhesion point quantity with integral support module of the prior art, and, each support unit can be removed from the suspending part of model independently, therefore, greatly reduce the dismounting difficulty of supporting module.
Although the present invention with preferred embodiment disclose as above, but itself and be not used to limit the present invention.Those skilled in the art, without departing from the spirit and scope of the present invention, when doing various changes and amendment.Therefore, the scope that protection scope of the present invention ought define depending on claims is as the criterion.
Claims (9)
1. a supporting module for fused deposition modeling 3 D-printing, for supporting the suspending part of the model needing 3 D-printing, is characterized in that, described supporting module comprises multiple support units of spaced arrangement, to provide multiple fixation point to a described suspending part.
2. the supporting module of fused deposition modeling 3 D-printing according to claim 1, is characterized in that, the shape and size of the cross section of described supporting module and described suspending part this cross section the profile of transverse projection planar identical.
3. the supporting module of fused deposition modeling 3 D-printing according to claim 2, is characterized in that, the cross section of each not crossing with described profile described support unit is hexagon, and in cellular arrangement between described support unit.
4. the supporting module of fused deposition modeling 3 D-printing according to claim 2, is characterized in that, the cross section of each not crossing with described profile described support unit is rectangle, and the arrangement in matrix between described support unit.
5. the supporting module of fused deposition modeling 3 D-printing according to claim 2, is characterized in that, the cross section of each not crossing with described profile described support unit is triangle, and in positive and negative alternate setting between adjacent described support unit.
6. the supporting module of fused deposition modeling 3 D-printing according to claim 1, is characterized in that, described support unit is made up of thermoplastic.
7. a generation method for the supporting module of the fused deposition modeling 3 D-printing according to any one of claim 1 to 6, is characterized in that, comprise the steps:
Generate multiple support unit, arranged by multiple described support unit, form array, the position of described array is corresponding with the suspending part of model, and the size of described array is greater than the size of described suspending part;
Successively choose the common factor of described suspending part and described array after described array is crossing with described model, generate described supporting module.
8. the generation method of the supporting module of fused deposition modeling 3 D-printing according to claim 7, is characterized in that, described in choose the common factor of suspending part and array step comprise following sub-step:
Successively choose described suspending part to occur simultaneously at the image in the projection of the every one deck cross section corresponding on described array.
9. a 3 D-printing method for model, is characterized in that, comprise the steps:
The model that generation need print, described model has at least one suspending part;
Generate supporting module, the generation method according to claim 7 or 8 generates described supporting module, and described supporting module is positioned at the below of described suspending part;
Successively print described model and described supporting module;
The suspending part of described supporting module from described model is removed.
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