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A slicing method for 3D printing

A 3D printing and slicing technology, which is applied in 3D object support structure, additive manufacturing, processing data acquisition/processing, etc., can solve the problems of not considering material adhesion, etc., to increase strength, increase equipment operation difficulty, and strong regularity Effect

Active Publication Date: 2017-12-19
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the strength of the printed device can be improved without considering the adhesiveness of the material itself, it will have an important impact on the application of 3D printing

Method used

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  • A slicing method for 3D printing
  • A slicing method for 3D printing
  • A slicing method for 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one: see figure 2 Shown, a kind of slicing method of 3D printing comprises the following steps:

[0029] (1) Use computing software to build a three-dimensional model of the product;

[0030] (2) Carry out slicing processing on the grid model file, divide the model into several slices along the vertical direction, and divide the slices into curved surfaces. The boundary line is a sinusoidal curve;

[0031] (3) Print layer by layer according to the layer information obtained in step (2).

[0032] See attached figure 2 , the maximum width of the model is D, the height of the model is H, the amplitude of the sine curve or cosine curve is A, the period is d, and the layer thickness is h. When H / D﹥1, A﹥2h, d﹥4h, When H / D≤1, h≤2A≤2h, 2h≤d≤4h.

[0033] See attached image 3 , is a schematic diagram of the surface cut distribution of slices in the embodiment. It can be seen from the same figure that in this embodiment, the peaks and valleys formed by the sin...

Embodiment 2

[0035] Embodiment 2: A slicing method for 3D printing, the steps are similar to Embodiment 1, wherein, refer to the attached Figure 4 As shown, it is the contour map of the slice. The dark part represents the peak value, and the light part represents the valley value. In the bottom surface projection of the printed object, the size of each direction is different, and the slices are sliced ​​in different directions with different periods.

Embodiment 3

[0036] Embodiment 3: A slicing method for 3D printing. Part of the slices in the model are composed of curved layers, and some of the slices are composed of plane layers. One side of the slice of the connecting piece is a curved surface, and the other is a plane. as attached Figure 5 As shown, when printing, the base layer can be printed on the bottom layer first, and then the flat slice can be printed in the normal way. When printing in this way, although the printing mechanism moves according to the plane, the final actually generated surface is in the shape of a curved surface. According to the shape and strength requirements of the model, choose different slice matching forms to increase the printing speed.

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Abstract

The invention discloses a 3D printing slicing method, which is characterized in that (1) using computer-aided design software to establish a three-dimensional model of a product to be printed; (2) performing slice processing on the three-dimensional model, and cutting the model along the vertical direction Separated into several slices, wherein at least part of the layer formed by the slices is a curved surface layer, the intersection line between the curved surface layer and the vertical cut surface is a sinusoidal distribution curve, and a regular and uniform peak-valley distribution is formed on the slice surface ; (3) According to the layered slice information obtained in step (2), print the model layer by layer. The invention greatly increases the strength of the device obtained by 3D printing without changing the adhesiveness of the material itself, and facilitates the realization of model reconstruction.

Description

technical field [0001] The invention relates to a rapid prototyping technology, in particular to a model layered slicing method used in 3D printing. Background technique [0002] 3D printing, also known as additive manufacturing, is a type of rapid prototyping technology. Based on a digital model file, this technology uses bondable materials such as powdered metal or plastic or photosensitive materials to build objects by printing and bonding (or curing) layer by layer. The biggest feature of 3D printing is that it can meet individual needs. For the production of high-precision, complex or personalized products, 3D printing is even better in terms of cost and technical implementation difficulty. At the same time, because it is additive manufacturing, almost no waste is generated in production, and the material utilization rate can often reach more than 90%. Therefore, 3D printing has irreplaceable advantages in manufacturing prototypes and molds. [0003] The principle of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/124B29C64/386B33Y50/00B22F10/80
CPCB22F3/00B33Y10/00
Inventor 任建锋黄启泰王毅倪颖
Owner SUZHOU UNIV
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