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2 2023

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Reliability of printers 3DCP during continuous work

Figurski Aleksy, Cisowski Adam, Klik Przemysław, Kowalik Michał, Zapał Wojciech, Urbański Dawid, Zawiśliński Krzysztof, Lipowiecki Ignacy, Rządkowski Witold

Polish Technical Review

2023

No. 2

14--17

The paper presents the studies on the reliability of printer Rebuild v3 during the implementation of the order of the Institute of Construction Technology. The object of the study was printing out of three miniature houses for fire tests and evaluation of burning ability of printouts made from the concrete. All the houses were printed during one session, lasting for 27h. Apart from the process of producing the objects, it was also possible to check the reliability and behaviour of the printer in so long and non-interrupted process.

Artykuł przedstawia badania niezawodności drukarki REbuild v3 w trakcie realizacji zlecenia dla Instytutu Techniki Budowlanej. Przedmiotem badania było wydrukowanie trzech miniaturowych domków do testów ogniowych i oceny palności wydruków z betonu. Wszystkie domki zostały wydrukowane podczas jednej sesji trwającej 27 godzin. Poza samym procesem wykonania obiektów, udało się sprawdzić niezawodność i zachowanie drukarki w tak długim i nieprzerywanym procesie.

Combining the Technology of Long-Range Laser 3D Scanners and Structured Light Handheld 3D Scanners to Digitize Large-sized Objects

Lipowiecki Ignacy, Rządkowski Witold, Zapał Wojciech, Kowalik Michał

Advances in Science and Technology. Research Journal

2023

Vol. 17, no 3

196--205

This paper presents a new method of merging the results obtained with long-range laser 3D scanners and structured light handheld 3D scanners to digitalize large-sized objects. An overview of the solutions in which these types of scanners are used was conducted and combined with the analysis of the studies related to the measurement accu- racy they offer. The focus was on the problems that may arise during the digitization of detailed large-sized objects. A reference test object was then selected, which not only included the fine details that needed to be represented but also met the size criterion. The object was scanned by two 3D scanners and the data was then compared in various aspects, such as resolution, accuracy, and the measurement procedure. Significant discrepancies in the results were identified. They related to the resolution and quality of results as well as accuracy, reaching more than 20 mm. Therefore, a method of combining the results was developed to collate the advantages of both devices and elimi- nate their disadvantages. In the end, the analysis of obtained results was repeated and the results were presented.