Condition monitoring and analysis of additive manufacturing machine

Mohd Fadzil, Muhammad Hafiz (2021) Condition monitoring and analysis of additive manufacturing machine. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

3D printing is one of technology that help manufacturer to make an object without sacrifice a lot of material and time. The 3D printer comes in variety of makes and models as well as closed source or open-source system. The open-source system 3D printer is the viable option for others as the component and the software for the printer is readily available via online. This open-source 3D printer also needs testing to make sure the 3D printer did not causing any fault during printing which is the unwanted scenario for any people. The purpose of this study was to do a condition-based monitoring for the additive manufacturing machine. The machine that been used for this monitoring was the large 3D printer unit. The conditionbased monitoring for this large 3D printer was focused on the nozzle and the transmission of every axis. The condition-based monitoring of the head extruder was based on the previous researcher. The first researchers done the nozzle tip from the normal diameter to the smallest diameter available, and the filament diameter and the feed rate is fixed. It was found that as the nozzle diameter reduced, the clogging of the melted filament was very visible, this suggested that the nozzle diameter is very important to avoid clogging during printing. The other nozzle condition-based monitoring focused on the feed rate of the filament. The extruder head is fitted with single torque motor with three filaments attached. The experiment showed that as the feed rate increased, the clogging rate of the nozzle also increased. Both finding will help future researcher of the large 3D printer to calibrate the large 3D printer extruder for smooth and long printing period. The transmission of the axis also helped to show the behaviour of the 3D printer in different design. The finding suggests that intricate design like gear caused vibration to the axis and the structure of the 3D printer. This finding also helps the other researchers of the large 3D printer to determine a suitable speed for each axis and reduced the need for finishing process of the printed object.

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