Precise continued printing method and apparatus used under abnormal 3D printing condition, and equipment

Abstract

The invention discloses a precise continued printing method and apparatus used under an abnormal 3D printing condition, and equipment. According to the precise continued printing method and apparatus provided by the invention, an abnormity detection module sends an abnormity signal to a master controller when detecting an abnormal condition; the master controller immediately executes a printing stopping instruction and records the abnormity state data of a printer, wherein a coordinate point, printing parameters, printing files and an abnormity type are calculated by using an algorithm according to printed data during abnormity, and the data is stored in a storage module; if the abnormity signal indicates abnormal power failure, a stand-by power source is switched to, and a printing head is shifted by control of a stepping motor driver at the same time so as to prevent after heat of the printing head from burning a model and harming printing quality; cooling of the printing head is waited, and the printer sounds an alarming prompt and enters a standby state; and when abnormity is eliminated, the abnormity state data of the printer is automatically extracted, the printing heat resets through control of the stepping motor driver and is heated, and printing is resumed. The precise continued printing method and apparatus can guarantee that precise continued printing after elimination of abnormity is not influenced even power supplied by the stand-by power source is not sufficient in the process of shifting.

Description

technical field [0001] The invention belongs to the technical field of 3D printing rapid prototyping, and in particular relates to a precise continuous printing method, device and equipment under abnormal 3D printing conditions. Background technique [0002] 3D printing technology is also called additive manufacturing technology. It is to manufacture products by stacking materials point by point to layer by layer. Compared with traditional subtractive manufacturing, it has the characteristics of short production cycle, less production process and digital production. From the perspective of low-carbon manufacturing, in 3D manufacturing technology, as much material as the product needs can be printed directly, with high resource utilization rate, energy saving and environmental protection. Therefore, it has a good application prospect and is currently a research hotspot in the world. 3D printing adopts a layer-by-layer accumulation method. When the size of the printed model...

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Problems solved by technology

[0003] The inventor found that Patent Document 1 (Chinese Patent Application No.: 201410149717.2) discloses a 3D printer and its method for continuous printing after power failure. This method switches the backup power supply after power failure, and also needs to execute the internal buffer of the main controller. Instructions, the execution end time of these instructions cannot be determined. If the backup power supply is insufficient during this process, it will cause serious loss of data during the printing process, and accurate continuous printing cannot be achieved.

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