Contact Image Sensor integration in Fused Filament Fabrication machines for layer inspection

One of the limiting factors for industrial application of additive manufacturing (AM) is the lack of geometrical accuracy of manufactured parts. To improve precision, non-contact sensors should be integrated into AM machines, capable of performing in-situ inspection of the part and being able to det...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2021-10, Vol.1193 (1), p.12091, Article 012091
Main Authors: Peña, F, Rico, J C, Valiño, G, Fernández, P, Meana, V, Zapico, P
Format: Article
Language:English
Subjects:
Contact Image Sensor
Digitizing
Flatbed
Fused deposition modeling
Fused Filament Fabrication
Geometric accuracy
In-situ inspection
Industrial applications
Inspection
Integration
Scanners
Sensors
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Summary:One of the limiting factors for industrial application of additive manufacturing (AM) is the lack of geometrical accuracy of manufactured parts. To improve precision, non-contact sensors should be integrated into AM machines, capable of performing in-situ inspection of the part and being able to detect and compensate for the actual geometrical errors. A non-contact digitizing system is proposed in this work for the inspection of the deposited material layers, based on a Contact Image Sensor (CIS) extracted from a commercial flatbed paper scanner. In order to integrate this sensor in an AM machine, a methodology was developed that includes the sensor operation analysis, the design of the necessary hardware and software to be externally controlled and the subsequent processing of the captured images. Results prove that the CIS sensor can be integrated in any device external to the original scanner.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/1193/1/012091