Full-automatic control monitor and monitoring method for extrusion amount of 3D printer nozzle

Abstract

The invention provides a full-automatic control monitor and monitoring method for the extrusion amount of a 3D printer nozzle, and aims to improve the uniformity of the extrusion amount, the finenessof a printed piece and the visualization effect of the printing process. The monitor comprises a single-chip microcomputer, a PWM signal input end, a signal processing output end, a data output end and a plurality of motor state sensors. The PWM signal input end is in butt joint with a 3D printer mainboard, the signal processing output end is in butt joint with each motor, the data output end is used for outputting printing model data processed by the single chip microcomputer, and the motor state sensors are connected with motors to obtain the operation condition of the motors respectively. The monitoring method comprises the steps that a primary driving signal sent by the 3D printer mainboard is obtained and processed by a single-chip microcomputer to generate a secondary driving signalfor the motors; and according to the operation conditions of the X-axis motor and the Y-axis motor, the average extrusion amount in the Z-axis direction is processed, and the printing state is monitored in real time by the motor state sensors connected with the motors.

Description

technical field [0001] The invention belongs to the field of 3D printing equipment, and in particular relates to a monitor and a monitoring method for fully automatic control of the extrusion volume of a nozzle of a 3D printer. Background technique [0002] At present, 3D printers have been widely used in industrial design, scientific research and teaching, production and processing, and even in family life, but the flow control motor of the extrusion nozzle is generally controlled by PWM at a constant speed, resulting in frequent accumulation and collapse of materials in special-shaped parts. Phenomenon, this disadvantage will become more and more prominent as 3D printers gradually become larger and more refined. Due to the characteristics of shrinkage and collapse of printing materials, when the three motors in the three-dimensional motion decelerate or accelerate, it will cause the same part to fall unevenly relative to other parts, which will lead to the phenomenon of st...

AI Technical Summary

Problems solved by technology

[0002] At present, 3D printers have been widely used in industrial design, scientific research and teaching, production and processing, and even in family life, but the flow control motor of the extrusion nozzle is generally controlled by PWM at a constant speed, resulting in frequent accumulation and collapse of materials in special-shaped parts. phenomenon, this disadvantage will become more prominent as 3D printers gradually become larger and more refined

Due to the characteristics of shrinkage and collapse of printing materials, when the three motors in the three-dimensional motion decelerate or accelerate, it will cause the same part to fall unevenly relative to other parts, which will lead to the phenomenon of stacking and collapsing during the printing process. As a result, the forming effect of the printed parts is affected, and as a result, problems such as waste of raw materials, low printing efficiency, and poor printing effect occur.

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