High-speed 3D micro-nanometer printing control method, model slicing method and model slicing device based on femtosecond laser

Abstract

The invention relates to the technical field of 3D micro-nanometer printing, in particular to a high-speed 3D micro-nanometer printing control method, model slicing method and model slicing device based on femtosecond laser. The model slicing method comprises the steps that i, coordinate data of dispersing points filling a whole 3D model are obtained; ii, all the dispersing points are layered to obtain the coordinate data of the dispersing points on each layer; iii, the dispersing points of each layer are divided into lines according to y coordinate values of the dispersing points to obtain the coordinate data of the dispersing points on each line; iv, the dispersing points are ranked sequentially according to the sequence of the lines and the layers, and the sequence of the coordinate data of all the dispersing points is obtained; and v, according to the sequence of all the dispersing points in the sequence, whether the dispersing points are starting points or finishing points of continuous line sections or not is judged sequentially, and if no, the dispersing points are removed from the sequence. The high-speed 3D micro-nanometer printing control method and the high-speed 3D micro-nanometer printing model slicing method are used in mutual cooperation, and the 3D micro-nanometer printing speed and precision can be increased and improved greatly.

Description

technical field [0001] The present invention relates to the technical field of 3D micro-nano printing, in particular to a femtosecond laser-based high-speed 3D micro-nano printing control method, model slicing method and device. Background technique [0002] Two-photon printing is a new type of laser direct writing technology, and its scientific name is femtosecond laser-induced two-photon polymerization. Femtosecond laser is a kind of pulsed laser, generally the duration of a single pulse is on the order of tens to hundreds of femtoseconds; two-photon polymerization is a kind of photocuring effect, some material molecules will be absorbed after absorbing two photons of the same or different wavelengths. Polymerization occurs, converting from liquid to solid. [0003] Two-photon printing is a potential 3D micro-nano printing technology, which can realize 100nm level or even finer precision structure processing, and can be applied in many high-precision fields, such as: micr...

AI Technical Summary

Problems solved by technology

[0009] At present, the model slicing used for two-photon printing mostly adopts open source algorithms. Such open source model slicing algorithms are generally suitable for 3D printing of macroscopic model structures, but not fully applicable to microscopic structures.

When the microstructure model is sliced ​​with the open source model slicing algorithm and then 3D printed, there are often defects such as low printing efficiency and low printing accuracy.

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