Secondary positioning method and structure for 3D printing feeding

Abstract

The invention discloses a secondary positioning method for 3D printing feeding. The method comprises the following operation steps: 1) the nozzle blockage condition of a nozzle part is identified; and the actual nozzle blockage position is determined to obtain a primary positioning pattern layer; 2) each point in the primary positioning pattern layer is deviated by 1-5 units left / right to obtain a secondary positioning feeding pattern layer; 3) the nozzle part position is kept invariable; the printing baseplate body position is adjusted according to the secondary positioning feeding pattern layer obtained in the step 2); and the feeding printing is performed according to the secondary positioning feeding pattern layer; and 4) the steps 2) and 3) are repeated until the feeding is finished. The feeding printing method forms the secondary positioning feeding pattern layer through identifying the nozzle blockage condition of the nozzle part, and uses deviation of the printing baseplate body to realize the feeding printing; and the feeding printing is high in printing precision, has no need to waste paraffin raw materials, and meanwhile, greatly improves the feeding printing efficiency. The invention further discloses a feeding structure for implementing the method and a 3D printer with the structure.

Description

technical field [0001] The invention relates to the field of 3D printing of paraffin wax products, in particular to a secondary positioning method and structure for 3D printing replenishment. Background technique [0002] With the rapid development of 3D printing technology, people have higher and higher requirements on the printing efficiency and printing accuracy of 3D printing equipment. In the prior art, 3D printing for paraffin products generally uses multi-nozzles to achieve layer-by-layer printing, and the nozzles can move along the X-axis, Y-axis and Z-axis, and the bottom plate of this 3D printer is only used to support the parts for processing. Uniaxial movement, the movement mode of the nozzle head and the bottom plate has some disadvantages. For example, when the outlet of the nozzle head is partially blocked and printing needs to be refilled, the entire layer must be refilled and printed, and then the excess paraffin raw material is removed. Refill printing onl...

AI Technical Summary

Problems solved by technology

In the prior art, 3D printing for paraffin products generally uses multi-nozzles to achieve layer-by-layer printing, and the nozzles can move along the X-axis, Y-axis and Z-axis, and the bottom plate of this 3D printer is only used to support the parts for processing. Uniaxial movement, the movement mode of the nozzle head and the bottom plate has some disadvantages. For example, when the outlet of the nozzle head is partially blocked and printing needs to be refilled, the entire layer must be refilled and printed, and then the excess paraffin raw material is removed. Refill printing only needs to be positioned once, which will cause waste of paraffin raw materials. At the same time, the over-frequency movement of the nozzle head will reduce the accuracy during long-term use, and this traditional method of refill printing greatly reduces its print quality. Efficiency, making the refill printing process complicated

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