Multi-spray head 3D printing method

Abstract

The invention discloses a multi-spray head 3D printing method which comprises the following steps: (1) drawing a 3D model; (2) slicing the model: importing a 3D model document into slicing software, wherein the slicing software slices the 3D model document in layers according to printing parameters, inputs the printing parameters of a cleaning mechanism, and generates layered slices of the cleaning structure according to the 3D model document; and (3) printing in turn: printing the cleaning structure and the 3D model by using a first spray head and a second spray head in turn. The multi-sprayhead 3D printing method is suitable for a multi-spray head printer which employs two silk materials of different types or silk materials of same type but different colors. As the cleaning mechanism isprinted by the printing spray heads before the 3D model is printed, residual silk materials on the printing spray heads are blocked by the cleaning mechanism, so that the printing spray heads are cleaned. In the process of printing the cleaning mechanism, the printing spray heads are heated continuously to feed silk, so that the printing spray heads feed the silk smoothly as the 3D model is printed after the printing spray heads feed the silk stably, and therefore, the printing quality is improved.

Description

technical field [0001] The invention belongs to the field of 3D printing, and in particular relates to a multi-nozzle 3D printing method. Background technique [0002] The FDM (Fused Deposition) 3D printer heats the print nozzle at high temperature to melt the filament and deposit it on the printing platform. When the molten filament contacts the printing platform, it is cooled and condenses rapidly, and the print nozzle deposits the filament layer by layer along the set printing path. onto the printing platform to construct a model with a three-dimensional structure. [0003] In order to meet the 3D printing demand for multiple materials and multi-color materials in the existing market, FDM 3D printers with multiple nozzles have appeared on the market. The filaments printed by the two nozzles can be of different materials or colors. When using multiple nozzles to print a 3D model, the first nozzle starts printing and the second nozzle stops heating, but the filament in the...

AI Technical Summary

Problems solved by technology

Since multiple nozzles move together during printing, the residual filament will affect the printing of the first nozzle, for example, the residual filament will stick to the 3D model, resulting in damage to the shape of the 3D model

When the second nozzle continues to print, due to the lack of filament in the second nozzle, there will be a phenomenon of wire leakage during printing, resulting in gaps in the 3D model and affecting the printing quality

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