Comparative evaluation of 3D printed components for deviations in dimensional and geometrical features

Gaikwad, Siddhant R.; Pawar, Nikhil H.; Sapkal, Sagar U.

doi:10.1016/j.matpr.2021.11.157

Cited by 8 publications

(5 citation statements)

References 7 publications

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“…Among the various printing technologies, the masked stereolithography (MSLA) and digital light processing (DLP) exploit the use of a photocurable ink to fabricate 3D objects under UV light exposure. , However, the objects produced by these methods are electrically insulating, thus limiting their potential in those applications requiring electrical signal transmission like some biomedical devices, soft robotics, and stretchable electronics. To overcome this limitation, several strategies have been investigated to make the printer inks conductive.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional-Printed Polyethylene Glycol Diacrylate-Polyaniline Composites by In Situ Aniline Photopolymerization: An Innovative Biomaterial for Electrocardiogram Monitoring Systems

Montaina

Carcione

Pescosolido

et al. 2023

ACS Appl. Electron. Mater.

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Three-dimensional (3D) printing technology is one of the additive manufacturing (AM) technologies that brings exciting prospects to the realm of conjugated polymers (CPs) and organic electronics through vastly enhanced design flexibility, structural complexity, and environmental sustainability. However, the use of 3D printing for CPs is still at early stages and remains full of challenges. Therefore, an interesting approach is to produce 3D-printed electrically conductive materials by exploiting the photopolymerization of conjugated monomers directly during the stereolithography process. The idea proposed in this work is to formulate a printable ink containing aniline able to photopolymerize within the insulating printable polyethylene glycol diacrylate (PEGDA) polymeric matrix directly during the 3D-printing process. The produced PEGDA-polyaniline (PANI) composites exhibit suitable morphological and structural features, as well as electrical and electrochemical performances potentially useful for various soft electronics applications. As a proof of concept, the 3D printed PEGDA-PANI samples are employed as a soft electrode in an electrocardiogram (ECG) device, and the efficiency is monitored under real-time conditions. The collected data exhibit reproducible ECG patterns, opening the way to 3D printed PEGDA-PANI electrodes for biosignal monitoring applications.

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Section: Introductionmentioning

confidence: 99%

Three-Dimensional-Printed Polyethylene Glycol Diacrylate-Polyaniline Composites by In Situ Aniline Photopolymerization: An Innovative Biomaterial for Electrocardiogram Monitoring Systems

Montaina

Carcione

Pescosolido

et al. 2023

ACS Appl. Electron. Mater.

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“…The dimensions of the width of the narrow section and the length of the specimen were greater than the expected nominal values, suggesting that the standard automatic compensation system for thermal shrinkage is adequate and meets the needs of the evaluated systems, as noted by Huang, Zhang, and Bhandari 59 . The shrinkage evaluation is extremely important for 3D printing, especially in the FDM process, due to the need to accurately reproduce of the parts following the pre‐defined dimensions in the computational stage 60,61 …”

Section: Resultsmentioning

confidence: 92%

“…59 The shrinkage evaluation is extremely important for 3D printing, especially in the FDM process, due to the need to accurately reproduce of the parts following the predefined dimensions in the computational stage. 60,61…”

Section: Dimensional Changes Of the Printed Samplesmentioning

confidence: 99%

Development of biodegradable filaments based on agro‐industrial waste and evaluation of process parameters in final properties

da Silva Fortes,

de Abreu,

de Sousa Nascimento Junior

et al. 2023

Polymer Composites

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Additive manufacturing, which has become popular in recent years, is the process of joining materials through the deposition of layers to form parts based on data from a 3D model and fused deposition modeling. The search for biodegradable materials for the production of filaments for 3D printing is increasing and opening up possibilities for the development of new sustainable products, including the use of lignocellulosic waste in the formulation. Therefore, the present work aims to develop polymeric filaments based on polybutylene adipate terephthalate and low content (2.5 and 5 wt%) of peanut and soybean shells and evaluate their potential for 3D printing. The charges were characterized in terms of chemical composition. Tensile and dimensional variation tests were performed on samples manufactured from two different filling orientations: −45/45° and 0/90°. The printability of the filament was based on the manufacture of prototypes of agricultural tubes that were also characterized by thermogravimetry and their morphology through scanning electron and optical microscopy. Both natural residues significantly (p < 0.05) affected the sample dimensions and mechanical properties. However, the filling orientation difference was insignificant (p > 0.05). The filaments produced showed good processability, thermal and dimensional stability. The samples produced showed a satisfactory surface finish without exposing load agglomerates. These results demonstrate the feasibility of using lignocellulosic fillers, such as peanut and soybean shells, in additive manufacturing and indicate the possibility of producing parts with varied geometries.Highlights Use of lignocellulosic residues in biodegradable filaments. The filament produced with fillers of peanut and soybean shells showed good processability. Filament fracture depends on the raster angle. It was possible to produce tubes with good surface quality and mechanical properties.

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“…The possibility of errors occurs when the setting in CURA is not optimal. Meanwhile, the results of research by Gaikwad et al showed an excellent texture when using PLA and PVA 3D printer filaments [24]. In the future, we plan to use multipurpose inserts to fabricate phantom ACR breasts based on 3D printing.…”

Section: Calculation Of Cnr and Snrmentioning

confidence: 96%

Evaluation of in-house phantoms for mammography accreditation with various 3D printer filaments

Celina,

Gani,

Endarko

2023

J. Phys.: Conf. Ser.

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One of the routine activities in the mammography modality is image quality testing using the American College of Radiology (ACR) accreditation phantom, approved by the Mammography Quality Standards Act (MQSA). ACR has approved the CIRS Model 015 for use in the Mammography Accreditation Program. However, because the price of this phantom can be reasonably high, not all hospitals have it. This study aims to fabricate the ACR CIRS model 015 phantom with various 3D printer filaments and compare it with the ACR phantom standard. Phantom was designed by depicting small structures similar to those found clinically to test the capabilities of quantitatively evaluated mammographic imaging systems. The designed in-house phantom consists of fibers, microcalcifications or specks, and masses to simulate tumors. Polylactic Acid (PLA) and Polyvinyl Alcohol (PVA) were used to fabricate in-house phantoms. Meanwhile, the fibers and specks were filled with nylon fiber and Al2CO3. The phantom was designed using the CATIA 3D design based on the CIRS phantom mammography accreditation model 015. The diameter of the specks was printed with the 3D printer in various sizes of 1, 0.9, 0.8, 0.7, and 0.6 mm, respectively. The fabricated phantom was irradiated three times to maintain accuracy using mammography type Siemens Mammomat Inspiration with serial number control 11238. The assessment was conducted with manual irradiation mode at a voltage of 28 kV, 100 mAs, target/filter W/Rh, and a compression rate of 50 N. The all-fabricated phantoms met the ACR standard phantom for fiber, and mass detection with the best result was achieved for the second material with six fibers, four specks, and five masses. The fabricated phantom can potentially be used for image quality control for mammography systems in determining the early detection of breast cancer.

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Comparative evaluation of 3D printed components for deviations in dimensional and geometrical features

Cited by 8 publications

References 7 publications

Three-Dimensional-Printed Polyethylene Glycol Diacrylate-Polyaniline Composites by In Situ Aniline Photopolymerization: An Innovative Biomaterial for Electrocardiogram Monitoring Systems

Three-Dimensional-Printed Polyethylene Glycol Diacrylate-Polyaniline Composites by In Situ Aniline Photopolymerization: An Innovative Biomaterial for Electrocardiogram Monitoring Systems

Development of biodegradable filaments based on agro‐industrial waste and evaluation of process parameters in final properties

Evaluation of in-house phantoms for mammography accreditation with various 3D printer filaments

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