Sistem Inspeksi Visual Berbasis Web-camera Menggunakan YOLO untuk Deteksi Real-time Spaghetti defect   pada 3D Printing FDM

Authors

  • I Gusti Agung Made Yoga Mahaputra Politeknik Negeri Bali
  • Putri Alit Widyastuti Santiary
  • I Ketut Swardika

DOI:

https://doi.org/10.51903/elkom.v19i1.3976

Keywords:

FDM 3D Printing, Raspberry Pi, Spaghetti Defect, Visual Inspection

Abstract

Print failure remains a major challenge in fused deposition modeling (FDM) 3D printing because it may lead to material waste, production delays, and potential damage to printer components. One frequent failure mode is the spaghetti defect  , in which extruded filament forms irregular strands due to poor bed adhesion, object displacement, or extrusion outside the intended printing path. This study develops a low-cost visual inspection system based on a web-camera and Raspberry Pi for real-time detection of spaghetti defect   using a YOLO object detection model. The proposed system captures visual data from the printing area, processes image frames locally on the edge device, and displays the detected defect  location using a bounding box, class label, and confidence score. The dataset consisted of 100 images, including 50 normal printing images and 50 spaghetti defect   images, divided into training, validation, and testing sets using a 70:20:10 ratio. Defect  images were annotated using bounding boxes to enable location-based defect  detection. The evaluation results show that the model achieved a precision of 91.30%, recall of 88.24%, F1-score of 89.74%, [email protected] of 92.10%, and [email protected]:0.95 of 87.30%. Real-time testing also demonstrated that the system could detect spaghetti defect   with confidence scores ranging from 0.87 to 0.90. These results indicate that the integration of a web-camera, Raspberry Pi, and YOLO has potential as an economical and portable early monitoring system for FDM 3D printing failures. 

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Published

2026-07-31

How to Cite

[1]
“Sistem Inspeksi Visual Berbasis Web-camera Menggunakan YOLO untuk Deteksi Real-time Spaghetti defect   pada 3D Printing FDM”, ELKOM , vol. 19, no. 1, pp. 483–493, Jul. 2026, doi: 10.51903/elkom.v19i1.3976.