User:Sdrajakaruna
| Name | Shenel De Soysa Rajakaruna |
|---|---|
| Affiliations | National Research Council |
| Location | Ottawa, Ontario |
| Nationality | |
| Skills | CNC, Solidworks, MasterCam, Chemical Analysis, Fusion360, Python |
| Interests | 3D Printing, Multimaterial 3D Printing, Mechanical Engineering, Designing, Resin Synthesis |
sdrajakaruna gmail com |
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| Links | linkedin.com |
| Registered | 2025 |
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| Shenel De Soysa Rajakaruna worked as a Technical Officer at the National Research Council (NRC) in the Quantum and Nanotechnologies Research Centre. His work focuses on the development of a next-generation volumetric additive manufacturing (VAM) 3D printer, where he contributes to the synthesis of novel photopolymer resins and the optimization of printing processes.
He has extensive experience in 3D printing technologies (FDM, DLP, SLA), SolidWorks modeling, and materials characterization using tools such as microscopes, profilometers, and FTIR. His research interests lie at the intersection of materials science, additive manufacturing, and mechanical design. Shenel earned his Manufacturing Engineering Technician Diploma from Algonquin College, where he was named to the Dean’s Honour List for all four semesters, maintaining an A– or higher across 27 courses. He also holds a Bachelor’s degree in Chemistry, where he was recognized with the Best Performance in Internship Award and served as the Fourth-Year Student Representative. During his high school education, he achieved A grades in all nine subjects in the GCE Ordinary Level Examination (2014). |
Projects
[edit | edit source]Conductive Ink Embedded Polycarbonate Device
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This project focused on the design and fabrication of a special multimaterial 3D printing platform capable of integrating multiple material deposition and UV sintering processes. The device model was designed using SolidWorks and processed through Slic3r to generate the corresponding G-code. The printing toolpaths were visualized using Prusa G-code Viewer, after which additional custom G-code scripts were manually developed to control syringe-based extruders and a UV curing pen.
A microchannel was incorporated into the SolidWorks design to facilitate controlled ink delivery within the printed structure. The system demonstrated successful operation in both two-dimensional (2D) and three-dimensional (3D) configurations, validating the feasibility of the customized hardware and control architecture for multimaterial additive manufacturing applications.
Development and Testing of Shape Memory Liquid Crystal Elastomers (LCEs) via VAM Printing
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In this work, we successfully achieved the first demonstration of printing a liquid crystal elastomer (LCE) exhibiting reverse thermal actuation using Volumetric Additive Manufacturing (VAM).This part involved the design and fabrication of a specialized fixture to enable Volumetric Additive Manufacturing (VAM) printing over a conductive coil using a liquid crystal elastomer (LCE) resin. The objective was to investigate the potential for electro-thermal actuation within the printed LCE structure. The fixture was engineered to support precise alignment between the conductive element and the printed geometry, ensuring uniform material deposition and electrical contact. After printing, a voltage was applied across the conductive coil to generate heat, allowing observation and analysis of thermally induced actuation behavior in the LCE. The setup provided an effective platform for studying stimuli-responsive material behavior under controlled thermal and electrical conditions.