Real-time feedback control method for printing precision of 3D printer

Abstract

The invention discloses a real-time feedback control method for the printing precision of a 3D printer. The method is implemented in the two parts: the first part, the positioning error of a printer machine is reduced through a feedback control system of the printer machine; and the second part, the forming error of a concrete object is reduced through a feedback adjusting system between the printer and a printed object, wherein the second part is a two-stage positioning method, the first stage is a horizontal relative position feedback adjusting system, and the second stage is a vertical relative position feedback adjusting system. The two stages are matched with each other, so that accurate adjustment and positioning between a printing nozzle and the printing object are realized. The twosystems are matched with each other to form a real-time feedback control system for the nozzle position, the coupling error between the printer and the printing object can be effectively reduced, theprinting precision of the 3D printer is improved, and the printing effect is enriched.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a real-time feedback control method for printing accuracy of a 3D printer. Background technique [0002] The industrialization of construction is the transformation of the production mode, and it is the process of transforming the traditional production mode into the modern industrialized production mode. Not only is it energy-saving, environmentally friendly, and low-carbon, it solves the problems of resource waste and environmental pollution, but also greatly improves the quality of the project while taking into account safety and efficiency; it integrates the design, production, construction, acceptance, and management of engineering construction. It is also an inevitable choice to face the human resources problems such as the increase of labor costs in my country's current construction industry and the shortage of labor and skilled workers. [0003] Whil...

AI Technical Summary

Problems solved by technology

However, this method does not consider the properties of the concrete itself. During the molding and hardening process, the printed concrete material will be deformed to a certain extent due to the influence of natural conditions such as gravity or the impact of the post-printed concrete on the front concrete.

At the same time, due to the limited reduction of the mechanical system error, the coupling error between the mechanical system and the concrete material still exists, so as the printing progresses, the accuracy of the printed object will gradually decrease, affecting the use

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