FFF/FDM 3D打印技术中长丝供给的热控制

2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA) Pub Date : 2021-09-07 DOI:10.1109/MMA52675.2021.9610898

Martin Ralchev, V. Mateev, I. Marinova

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引用次数: 0

摘要

本文提出了一种FFF/FDM 3D打印技术中长丝供给的热控制方法。采用长丝供给热控制方法，检测和避免挤压机卡壳造成的3D打印过程阻塞。该方法基于3D打印机挤出机的实时温度反馈。连续遵循两个控制参数，一是挤出机热时间常数，二是挤出机加热器开关频率。这两个参数都提供了通过挤出机的物料流的准确反馈信息，并检测了3D打印过程中不常见的干扰。建立并给出了长丝料供给速度与控制参数之间的关系。控制方法不需要额外的硬件设备，并使用嵌入式3D打印机挤出机传感器和控制器。

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Thermal Control of Filament Supply in FFF/FDM 3D Printing Technology

In this work, a method for thermal control of filament supply in FFF/FDM 3D printing technology is presented. Thermal control method for filament supply is used to detect and avoid 3D printing process blocking caused by extruder jamming. Method is based on real-time temperature feedback from the 3D printer extruder. Two control parameters are continuously followed, first is the extruder thermal time-constant and second is the extruder heater switching frequency. Both parameters provide accurate feedback information on material flow through extruder and detects unwonted jamming during the 3D printing process. Correlation between filament material supply speed and control parameters has been established and presented. Control method does not require additional hardware equipment and uses embedded 3D printer extruder sensors and controllers.

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来源期刊

2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)

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