A kind of photocuring 3D printing method
A 3D printing and photo-curing technology, which is applied in 3D object support structures, additive manufacturing, processing data acquisition/processing, etc., can solve the problems of no significant improvement in curing accuracy and a decrease in printing speed, and achieve considerable economic benefits and printing speed Improved effect
Active Publication Date: 2017-04-19
GOLD ARRAY TECH BEIJING LLC
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However, in reality, the cross-sectional shape between two adjacent thin layers may be the same or only slightly different, then the control unit will analyze them as two different thin layers, which will undoubtedly cause the printing The speed is reduced, and the curing accuracy is not significantly improved
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[0022] refer to figure 1 , The photocuring 3D printing method provided by an embodiment of the present invention includes the step of acquiring a three-dimensional model, the step of stratifying, the step of acquiring layer data, the step of superimposing layers, the step of comparing data, and the step of printing.
[0023] In order to further elaborate on the light-curing 3D printing method described in this embodiment, set as figure 2 The irregular three-dimensional figure is used as an object to be printed, and it is divided into layers numbered 1, 2, 3, 4...20 as shown in Figure 3(a)-(e), each layer Thickness d=0.2mm.
[0024] The contour line data and area data of layers numbered 1, 2, 3, 4...20 are obtained by the control unit, and an axis L passing through the three-dimensional object is selected, and the axis L has a position on each layer Relatively fixed center position O 1 ~O n .
[0025] Referring to Figure 3, set the center position O of the first layer and...
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Abstract
The invention provides a photocuring 3D printing method. The photocuring 3D printing method comprises the steps of obtaining a three-dimensional model, conducting laminarization, obtaining layer data, conducting layer stacking, comparing data and printing. According to the photocuring 3D printing method, adjacent layers of identical or similar cross sections are combined in the curing process, the parameters such as exposure time, power and output intensity of a light source are adjusted directly through a control unit, so that a thin layer with n times of preset thickness d is formed on a bearing unit through one-time curing. On the premise that the printing accuracy is not reduced basically, by combining the existing stereo lithography apparatus (SLA) technique or digital light processing (DLP) technique, the printing speed can be improved by 20-100 times, and by combining the continuous liquid interface production (CLIP) technique of the American Carbon 3D company, the printing speed can be even improved by 50-500 times. The photocuring 3D printing method has very considerable economic benefits.
Description
technical field [0001] The invention relates to the field of 3D printers, in particular to a 3D printing method for increasing the speed of photocuring molding. Background technique [0002] At present, during photocuring 3D printing, the object to be printed can be entered into the control unit (virtualization), and the resulting 3D model can be divided into multiple layers with unique cross-sectional shapes and the same thickness. Afterwards, a light source is used to irradiate the liquid photosensitive resin according to the cross-sectional shape of the layer, so that the liquid photosensitive resin is solidified into a thin layer on the carrying platform. The latter thin layer is solidified on the lower surface of the previous thin layer, and the thin layers accumulated on each other finally form the finished printed object. In addition, each time a thin layer is printed, the carrier unit needs to move a certain distance to prepare for the curing of the next thin layer,...
Claims
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IPC IPC(8): B29C64/124B29C64/393B33Y10/00B33Y50/02
Inventor 李厚民尹瑞平范轶旸王翊坤朱凯强许蓓蓓
Owner GOLD ARRAY TECH BEIJING LLC