Shrinkage prediction and correction in material extrusion of cellulose-chitin biopolymers using neural network regression
Loss of geometric accuracy due to shrinkage is a challenge in material extrusion of biological composites using water-based inks, such as the cellulose-chitin biopolymers used here. The shape of 3D printed objects often departs from the intended design geometry due to evaporative loss of water durin...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-12-01
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| Series: | Virtual and Physical Prototyping |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/17452759.2023.2225039 |
| _version_ | 1797678615314300928 |
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| author | Stylianos Dritsas Revathi Ravindran Jian Li Hoo Javier G. Fernandez |
| author_facet | Stylianos Dritsas Revathi Ravindran Jian Li Hoo Javier G. Fernandez |
| author_sort | Stylianos Dritsas |
| collection | DOAJ |
| description | Loss of geometric accuracy due to shrinkage is a challenge in material extrusion of biological composites using water-based inks, such as the cellulose-chitin biopolymers used here. The shape of 3D printed objects often departs from the intended design geometry due to evaporative loss of water during curing. Moreover, such materials' viscoelastic characteristics result in complex volumetric changes that are difficult to predict and compensate for. We developed a prediction-correction scheme by 3D printing and scanning cylindrical and conic surfaces, computing the geometric deviations between designed and cured artefacts, and training a neural network such that given the machine path for a 3D print, the model can predict shrinkage deformations and apply adjustments on the generating machine paths to proactively compensate it. In this article, we present the shrinkage characteristics of the material used and the results of applying the predictor-correction scheme. The approach substantially improves geometric accuracy, enabling nearly seamless assembly of separately 3D printed parts. Addressing such a fundamental problem of quality control as geometric accuracy may enable the broader adoption of biopolymers and potentially displace the generalised use of synthetic plastics. |
| first_indexed | 2024-03-11T23:02:30Z |
| format | Article |
| id | doaj.art-52abe882dcf1496d8c891aac112d0352 |
| institution | Directory Open Access Journal |
| issn | 1745-2759 1745-2767 |
| language | English |
| last_indexed | 2024-03-11T23:02:30Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Virtual and Physical Prototyping |
| spelling | doaj.art-52abe882dcf1496d8c891aac112d03522023-09-21T14:38:04ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672023-12-0118110.1080/17452759.2023.22250392225039Shrinkage prediction and correction in material extrusion of cellulose-chitin biopolymers using neural network regressionStylianos Dritsas0Revathi Ravindran1Jian Li Hoo2Javier G. Fernandez3Singapore University of Technology and DesignSingapore University of Technology and DesignSingapore University of Technology and DesignSingapore University of Technology and DesignLoss of geometric accuracy due to shrinkage is a challenge in material extrusion of biological composites using water-based inks, such as the cellulose-chitin biopolymers used here. The shape of 3D printed objects often departs from the intended design geometry due to evaporative loss of water during curing. Moreover, such materials' viscoelastic characteristics result in complex volumetric changes that are difficult to predict and compensate for. We developed a prediction-correction scheme by 3D printing and scanning cylindrical and conic surfaces, computing the geometric deviations between designed and cured artefacts, and training a neural network such that given the machine path for a 3D print, the model can predict shrinkage deformations and apply adjustments on the generating machine paths to proactively compensate it. In this article, we present the shrinkage characteristics of the material used and the results of applying the predictor-correction scheme. The approach substantially improves geometric accuracy, enabling nearly seamless assembly of separately 3D printed parts. Addressing such a fundamental problem of quality control as geometric accuracy may enable the broader adoption of biopolymers and potentially displace the generalised use of synthetic plastics.http://dx.doi.org/10.1080/17452759.2023.2225039material extrusioncellulose-chitin biopolymersshrinkage compensationneural network regression |
| spellingShingle | Stylianos Dritsas Revathi Ravindran Jian Li Hoo Javier G. Fernandez Shrinkage prediction and correction in material extrusion of cellulose-chitin biopolymers using neural network regression Virtual and Physical Prototyping material extrusion cellulose-chitin biopolymers shrinkage compensation neural network regression |
| title | Shrinkage prediction and correction in material extrusion of cellulose-chitin biopolymers using neural network regression |
| title_full | Shrinkage prediction and correction in material extrusion of cellulose-chitin biopolymers using neural network regression |
| title_fullStr | Shrinkage prediction and correction in material extrusion of cellulose-chitin biopolymers using neural network regression |
| title_full_unstemmed | Shrinkage prediction and correction in material extrusion of cellulose-chitin biopolymers using neural network regression |
| title_short | Shrinkage prediction and correction in material extrusion of cellulose-chitin biopolymers using neural network regression |
| title_sort | shrinkage prediction and correction in material extrusion of cellulose chitin biopolymers using neural network regression |
| topic | material extrusion cellulose-chitin biopolymers shrinkage compensation neural network regression |
| url | http://dx.doi.org/10.1080/17452759.2023.2225039 |
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