TW201634235A - The method and system for dynamical printing of 3D printing - Google Patents

Abstract

The present invention discloses a method and system for dynamical printing of 3D printing, and the system performs multilayer slices to the model which will be printed by 3D printing and set corresponding print command to each slice, and according the corresponding print command to print each slice sequentially, and obtaining model printed by 3D printing. Since the invention is based on each slice as a unit to set the corresponding print command, if the subsequent slices are not printed, the system can change the slice structure immediately by modify or edit the corresponding print command. By printing process can edit the model conveniently and quickly, to achieve the technical effect of printing process can edit model dynamically, the system not only improves printing speed and quality, but also enhances the user experience feeling.

Description

Dynamic printing method and system for three-dimensional printing machine

The invention relates to a printing technology, in particular to a dynamic printing method and system for a three-dimensional printing machine.

Three-dimensional printing is a form of three-dimensional forming technology. In the three-dimensional forming technology, a three-dimensional printing object is created by a three-dimensional printing machine through a continuous solid layer. Compared with other three-dimensional forming technologies, the three-dimensional printing machine has the advantages of high speed, low price, high ease of use and the like. The three-dimensional printing machine is a kind of equipment that can print real three-dimensional objects. It is functionally the same as the laser forming technology. It uses layered processing and superposition forming, which is to create a three-dimensional printing object by layer-by-layer material addition, and the traditional material removal. Processing technology is completely different. The three-dimensional printing machine refers to the principle of traditional processing technology, because the process of layered processing is very similar to the working principle of the inkjet printer.

At present, the step of the three-dimensional printing machine in the three-dimensional printing of the object is: obtaining the model data information of the three-dimensional printing object; and then, according to the model data information of the three-dimensional printing object, using the preset universal printing parameter information, Three-dimensional printing; finally, a three-dimensional printed object is obtained.

When a three-dimensional printing machine is used to print a three-dimensional printing object, in addition to the requirements for the material and printing quality of the three-dimensional printing object, one of the common concerns is the printing speed. Because of the printing accuracy requirements, it is difficult to greatly improve the printing speed without greatly improving the printing nozzle or the printing algorithm of the three-dimensional printing machine. The model of a three-dimensional printed object realizes that the three-dimensional printed matter of the physical object can be as small as several hours, and more than ten or dozens of hours. So once you have made or selected your print target, you will then build a model of the three-dimensional print object. The user can only wait for the corresponding stereoscopic print object to be completed. That is to say, even if the printing speed is very slow, once the printing is started, the model data information of the three-dimensional printing object cannot be adjusted, so that the final three-dimensional printing object cannot be modified. At this time, it is necessary to stop the printing, re-construct the model of the body printing object, and then re-printing, in order to modify the final three-dimensional printing object, which will make the modification of the three-dimensional printing object in the printing process time-consuming and laborious, operation It is complicated and makes the printing speed further reduced.

The invention provides a printing method of a three-dimensional printing machine, which can conveniently and quickly modify a three-dimensional printing object in the printing process to improve the printing speed.

In order to achieve the above object, the present invention achieves the following contents: a dynamic printing method for a three-dimensional printing machine, the method comprising: slicing a three-dimensional printing object model to obtain slices of each layer of the three-dimensional printing object model, and The obtained layer slices respectively set corresponding printing commands; according to the progress of the printing, the layer states are set and prompted, and the states can be divided into the printed state, the upcoming and printing states, and the editable state; When the slice state is editable, the layer slice is structurally edited, and the edited layer slice is obtained; and the corresponding edited slice slice is set to a corresponding print command to update the layer slice before editing. The corresponding printing command is set; the layer slices are sequentially printed according to the corresponding printing command to obtain a three-dimensional printing object.

Wherein, the thickness of each layer slice is the printing precision of the three-dimensional printing machine.

Further, before the printing of the layer slices according to the corresponding printing command, the method further comprises: converting the corresponding printing command to the machine code, performing the printing step after the batch transmission according to the sequence of each layer. .

Wherein, the above machine code can be stored in a text storage or binary manner.

Further, after the corresponding printing command of the layer slice setting before the update editing, before the printing, the method further comprises: determining whether the external support of the structure is satisfied according to the structure of the edited layer slice Judging the condition, if the judgment condition is YES, Then the external support is added, and if the condition is judged to be no, the external support is not increased.

In addition, the present invention also provides a printing system for a three-dimensional printing machine, which can quickly and easily modify a three-dimensional printing object during the printing process to improve the printing speed, including: a loading unit for carrying a three-dimensional printing object model; a slice processing unit for sliceting the three-dimensional printing object model, obtaining each layer slice of the three-dimensional printing object model, and respectively setting corresponding printing commands for each layer slice obtained; according to printing The printing progress of the unit, the real-time status setting and prompting of each layer slice, the status can be divided into the printed status, the upcoming and printing status, and the editable status; an editing unit for when the slicing status is editable When the layer slice is structurally edited, the edited layer slice is obtained; a command generation unit is configured to set a corresponding edit print command to the edited slice to replace the edited slice before being edited. The corresponding printing command is set; a printing unit is used for sequentially printing the slice of each layer according to the corresponding printing command to obtain the final standing Print objects.

Further, in the above-described slice processing unit, the thickness of each layer slice is a three-dimensional printer printing precision.

Further, in the above command generating unit, the corresponding print command can be further converted into a machine code, and transferred to the printing unit in batches according to the sequence of each layer. Further, in the above printing system of the three-dimensional printing machine, further comprising an external support setting unit, configured to determine, according to the structure of the edited slice of the layer, whether the set external support judgment condition is satisfied, if it is determined If the condition is YES, the external support is increased, and if the condition is negative, the external support is not increased.

Further, the above machine code can be stored in a text storage or binary manner.

The printing method and system provided by the invention multi-layer slice the model of the three-dimensional printing object, respectively set corresponding printing commands for each layer slice, and sequentially print each layer slice according to the corresponding printing command to obtain the final Three-dimensional print items. Since the present invention sets the corresponding printing command in units of slices per layer, for subsequent slices that have not been printed, the immediate modification of the slice structure can be achieved by modifying or editing the corresponding printing command, thereby The printing process facilitates and quickly modifies the three-dimensional printed object to achieve the technical effect of dynamically editing the printed object model during the printing process, and improves the printing speed and quality, and also enhances the user experience.

101‧‧‧Steps

102‧‧‧Steps

10201‧‧‧Editable status

10202‧‧‧ forthcoming and printing status

10203‧‧‧Printed status

103‧‧‧Steps

104‧‧‧Steps

1‧‧‧Three-dimensional print object model provided by the embodiment

11‧‧‧ slices of each layer in editable state

12‧‧‧ slices of the layers to be printed and in the process of being printed

13‧‧‧ Sliced layers of the printed state

2‧‧‧The final printed three-dimensional printed object

51~53‧‧‧White box

61‧‧‧Loading unit

62‧‧‧Slice processing unit

621‧‧‧editing unit

622‧‧‧External support setting unit

63‧‧‧Command generation unit

64‧‧‧Printing unit

1 is a flowchart of a dynamic printing method of a three-dimensional printing machine according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a dynamic printing state transition of a slice according to an embodiment of the present invention; FIG. 4 is a schematic diagram of a three-dimensional printing object obtained by modifying each layer slice in the embodiment of the present invention; FIG. 5 is a schematic diagram of a three-dimensional printing object obtained by modifying a layer of each layer in the embodiment of the present invention; FIG. 6 is a schematic structural diagram of a dynamic printing system of a three-dimensional printing machine according to an embodiment of the present invention.

The present invention will be further described in detail below with reference to the accompanying drawings.

In an embodiment of the invention, the three-dimensional printer system consists essentially of a software portion, an electronic portion, and a mechanical portion. Wherein, the software part cuts the model of the three-dimensional printing object into a multi-layered slice, and the thickness of the cut multi-layered slice is the printing precision of the three-dimensional printing machine, and then respectively sets a corresponding printing command for each layer of the slice, and the printing command is actually Space coordinate print command; mechanical part, the machine code generated by the space coordinate print command of each layer slice, the mechanical part is the positioning part of the mechanical code corresponding to the space coordinate print command, and the power system, bracket, and the same of the motor The XYZ space axis consisting of the step wheel, the conveyor belt, the hot bed, the nozzle, the feeding system and the walking system is positioned according to the space coordinate printing command; the electronic part is used as a bridge between the software part and the mechanical part, and is mainly used for the space coordinates. The print command is cached and generates mechanical codes that can be executed by the mechanical part, such as graphic code (GCode) for the mechanical part, control of the mechanical part of the power system, control of the temperature of the mechanical part, and so on.

Please refer to FIG. 1 , which is a flowchart of a dynamic printing method of a three-dimensional printing machine according to an embodiment of the present invention, and the specific steps are as follows:

Step 101: Load or create a stereo print object model.

Step 102: The stereoscopic print object model is sliced to obtain slices of each layer of the stereoscopic print object model, and corresponding print commands are respectively set for the obtained slice slices.

In step 102 of the embodiment of the present invention, the method further includes: setting and prompting each layer slice according to the progress of the printing, and the state is divided into an editable state 10201, an upcoming and a printing state 10202, and a printed state. 10203. When the slice state is the editable state 10201, after editing the structure of the layer slice, the edited slice of the layer is obtained; wherein the thickness of each slice is the print precision of the stereo printer.

Step 103: respectively set a corresponding printing command for each layer slice, and set a corresponding edit printing command for the edited layer slice to replace the corresponding printing command set by the layer slice before editing; The corresponding print command is converted into machine code, and then transferred to the mechanical part of the printing machine in batches in the order of slicing for printing.

Step 104: sequentially print the slice of each layer according to the corresponding print command to obtain the final three-dimensional print object.

As shown in FIG. 1 , the embodiment of the present invention uses a layering technique to slice a stereoscopic print object model, and the machine code corresponding to the print command used in subsequent printing is also grouped by using a slice, and the thickness of the slice is The printing accuracy of the three-dimensional printer is in units. The process of converting the machine code and subsequent printing according to the machine code is also in the thickness of the slice, so that the layered management printing mechanism can be realized, and the realization of the dynamic instant editing stereoscopic print object model is provided. For the foundation. The hierarchical slice definition of the stereoscopic print object model includes the spatial position information of the slice, which is grouped in units of slice layers during conversion, and converts the print command into machine code, thereby establishing a slice and print command and subsequent machine code. The correspondence between the machine code can be stored in text or binary.

In the embodiment of the present invention, when the machine code is managed, the state classification management is performed according to the layer printing unit according to the printing order, and the slice of each layer of the three-dimensional printing object model is divided into an editable state 10201, and the printing and printing state is 10202. And the printed state 10203, the state division includes, but is not limited to, the above-mentioned several state types, as shown in FIG. 2, which is a schematic diagram of the dynamic printing state transition of the slice provided by the embodiment of the present invention, in the printing process, The print status of the slice changes instantly based on the progress of the instant processing.

In the embodiment of the present invention, the method further includes: respectively setting a corresponding printing state for each layer of the slice, the printing state being updated in time according to the printing progress of the stereoscopic printing object model. The print status set by each slice is prompted to remind the user that the layer in the stereo print can be re-edited or modified.

For example, as shown in FIG. 3 , it is a schematic diagram showing the instant printing state of the slice printing state of each layer in the three-dimensional printing object model 1 provided by the embodiment of the present invention, and the printing state line is defined, and the color is marked by using different colors. The gray filled area is the slice 11 of each layer in the editable state; the black filled area is the slice 12 of each layer that is about to be printed, in the frozen state, generally not allowed editing; the white filled area is printed The slice 13 of each layer is in an uneditable state.

According to FIG. 3, the user can dynamically edit the slice of each layer in the gray-filled area, so that the final printed three-dimensional print object 2 can be obtained, as shown in FIG. 4, which is the embodiment of the present invention. Modify the slice of each layer, and finally get a schematic diagram of the three-dimensional printed object.

In the embodiment of the present invention, after each layer slice in the editable state is dynamically edited in the printing process, a print command is generated for each slice of the edited layer, converted into a machine code, and then transmitted to the stereo printer for printing. Machine code can be stored in text or binary. Standing The embodiment of the present invention further includes: determining whether external support processing is required according to the structure of the edited slice of each layer, and adding external support after external support is required, Print again, if you do not need external support processing, print directly.

In addition, the stereo printer can preset the external support judgment condition of the structure. For example, the condition can be set to a horizontal direction and the external support is required when the size reaches the set value, and the external support is a vertical structure and below the print structure, or The outer support is a beveled structure and is below the printed structure. In this way, it can be determined whether the structure of the edited slice of each layer satisfies the external support judgment condition of the preset structure. If the judgment condition is satisfied, external support processing is required, otherwise external support processing is not required.

For example, as shown in FIG. 5, it is a schematic structural diagram of external support when printing the edited layers of the slice provided by the embodiment of the present invention, and the white box 51 in the left figure is a print original stereo print article model. When there is external support, if the subsequent slice structure is edited at this time, an additional external support structure is required, so the external support of the white box 52 and the white box 53 is determined according to the external support judgment condition of the preset structure. Structure; the white box 53 in the right diagram employs a beveled outer support structure based on the white box 51. In use, the support structure in the left figure or the support structure in the right figure can be used.

FIG. 6 is a schematic structural diagram of a dynamic printing system of a three-dimensional printing machine according to an embodiment of the present invention, including: a loading unit 61, a slice processing unit 62, an editing unit 621, a command generating unit 63, and a printing unit 64, wherein

The loading unit 61 is configured to load the stereoscopic print object model; the slice processing unit 62 is configured to slice the stereoscopic print object model to obtain each layer slice of the stereoscopic print object model; and the editing unit 621 is configured to slice the state In the editable state, after the structure editing of the layer slice, the edited layer slice is obtained; the command generating unit 63 is configured to set a corresponding print command for the obtained edited layer slice, and update the layer slice. a corresponding print command set before editing; the printing unit 64 is configured to sequentially print the slice of each layer according to the corresponding print command. Obtaining a final three-dimensional print object; according to the printing progress of the printing unit 64, setting and prompting the instant state of each layer slice, the state includes dividing into an editable state 10201, an upcoming and printing state 10202, and a printed state. 10203.

In this configuration, the thickness of each layer slice in the slice processing unit 62 is the stereo printer printing accuracy.

The command generating unit 63 in the structure can also convert the set corresponding print command into a machine code, and transfer it to the printing unit in batches according to the sequence of each layer.

In this structure, an external support setting unit 622 is further included for determining whether the external structural support judgment condition of the set is satisfied according to the structure of the edited slice of the layer, and if the judgment condition is yes, the external support is added, if the condition is determined If not, no external support is added.

The present invention has been described in detail with reference to the preferred embodiments of the present invention. All modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the invention.

101~104‧‧‧Steps

Claims (10)

A dynamic printing method for a three-dimensional printing machine comprises the steps of: slicing a three-dimensional printing object model, obtaining a plurality of layer slices of the three-dimensional printing object model, and respectively setting corresponding printing commands for the three slices; Performing an instant state setting on the slices according to a progress of printing, and prompting that the instant state includes an editable state; when the instant state of the slices is the editable state, the instant state is editable The sections of the state are structurally edited to obtain at least one edited slice; and the corresponding edited slice is respectively set to a corresponding one of the edited print commands to replace the edited slices respectively before being edited. The print command is sequentially printed according to the corresponding print command or the edit print command to obtain a three-dimensional print object. The dynamic printing method according to claim 1, wherein the thickness of the slices is a three-dimensional printing machine printing precision. The dynamic printing method of claim 1, wherein before the printing of the slices according to the corresponding printing command, the method further comprises: converting the edited printing commands into a machine code, in order, After the batch transfer, the print step is performed. The dynamic printing method of claim 3, wherein the machine code can be stored in a text storage or a binary manner. For example, in the dynamic printing method described in claim 1, after the edited print command is set and before the prints are printed, the method further includes: determining, according to the structure of the edited slices, whether If the judgment result is yes, the external support is increased, and if the judgment result is no, the increase is not increased. Add external support. A dynamic printing system for a three-dimensional printing machine, comprising: a loading unit for loading a three-dimensional printing object model; a slice processing unit for slicing the three-dimensional printing object model to obtain the three-dimensional column Printing a plurality of layers of the object model, and respectively setting corresponding print commands for the slices; a printing unit, wherein the slice processing unit performs an instant state setting on the slices according to the printing progress of the printing unit The prompt state includes an editable state, and an editing unit, when the slice states are in the editable state, performing structural editing on the slices to obtain at least one edited slice; a command generating unit, And correspondingly, the edited print command is respectively set to replace the print command corresponding to the edited slice before being edited; wherein the print unit further The edit print command sequentially prints the slices to obtain a three-dimensional print object. The dynamic printing system of claim 6, wherein the thickness of the slices is the printing accuracy of the three-dimensional printing machine. The dynamic printing system of claim 6, wherein the command generating unit converts the set of pre-editing print commands or the edited print commands to the machine code, and arranges according to the slices. The sequence is transferred to the printing unit in batches. The dynamic printing system of claim 6, further comprising an external support setting unit, configured to determine, according to the structure of the edited slice, whether the set external support judgment condition is met, if the condition is determined If the result is yes, the external support is increased, and if the result of the judgment condition is no, the external support is not increased. The dynamic printing system of claim 8, wherein the machine code can be stored in a text storage or binary manner.