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Analysis of 3D Prints by X-ray Computed Microtomography and Terahertz Pulsed Imaging

Daniel Markl, J. Axel Zeitler, Cecilie Rasch, Maria Høtoft Michaelsen, Anette Müllertz, Jukka Rantanen, Thomas Rades, Johan Bøtker
2016 Pharmaceutical Research  
The print resolution and accuracy was characterised by XμCT and TPI on the basis of the computer-aided design (CAD) models of the dosage form (compartmentalised PVA structures were 7.5 ± 0.75% larger than  ...  Conclusions The 3D printer can reproduce specific structures very accurately, whereas the 3D prints can deviate from the designed model.  ...  Fig. 6 6 Co-registration of the 3D rendering of the XμCT images and the CAD model. The blue color visualises the XOR-CAD data and the red color represents the XOR-XμCT data.  ... 
doi:10.1007/s11095-016-2083-1 pmid:28004318 pmcid:PMC5382186 fatcat:umtab5f4ubgz7anlarxpg3jtqi

Visualisation of rapid prototyping

S.H. Choi, S. Samavedam
2001 Rapid prototyping journal  
The implementation techniques involved in the development of the VP system and the considerations in selecting virtual reality interfaces are described.  ...  Discusses a virtual prototyping (VP) system developed for simulation of rapid prototyping processes. It enables a designer to visualise and optimise an RP process with a set of process parameters.  ...  The authors would like to thank the Research Grant Council of the Hong Kong SAR Government and the CRCG of the University of Hong Kong for the financial support for this project.  ... 
doi:10.1108/13552540110386763 fatcat:rogh4rc5bvbqjpazoabe3yt7hi

The Paramak: automated parametric geometry construction for fusion reactor designs

Jonathan Shimwell, John Billingsley, Rémi Delaporte-Mathurin, Declan Morbey, Matthew Bluteau, Patrick Shriwise, Andrew Davis
2021 F1000Research  
The Paramak uses CadQuery 2 to create the 3D CAD model.  ...  The Paramak is an open-source tool that aims to provide automated parameter driven 3D CAD models for fusion reactor components and magnetic fusion reactors.  ...  The authors would like to thank Simon McIntosh for the provision of examples when calculating the coordinates of the TF coils.  ... 
doi:10.12688/f1000research.28224.1 pmid:33815763 pmcid:PMC7983317 fatcat:wnn4nygvlngm5phuzrgowjyoki

Integration of Models of Building Interiors with Cadastral Data

Dariusz Gotlib, Marcin Karabin
2017 Reports on Geodesy and Geoinformatics  
They are created on the basis of different data: architectural and construction plans, both, in the analogue form, as well as CAD files, BIM data files, by means of laser scanning (TLS) and conventional  ...  The authors analysed the possible input- of cadastral data (legal extent of premises) at the stage of the creation and updating different models of building's interiors.  ...  Acknowledgements The authors would like to thank Mr. Miłosz Gnat from Department of Cartography, Warsaw University of Technology for preparing 3D data visualization necessary for this paper.  ... 
doi:10.1515/rgg-2017-0018 fatcat:g4vw5fxonrec5kotvjkcr5vly4

Streak formation in flow over biomimetic fish scale arrays

Muthukumar Muthuramalingam, Leo S. Villemin, Christoph Bruecker
2019 Journal of Experimental Biology  
Flow simulations were compared with surface oil-flow visualisations on the physical model of the biomimetic surface placed in a flow channel.  ...  The existence of streaks is also shown on sea bass and common carp (Cyprinus carpio) by surface flow visualisation.  ...  Acknowledgements We thank Edward Talboys from City, University of London for help with surface flow visualisation on the real fish (lifeless) and Avin Alexander Jesudoss for help with surface flow visualisation  ... 
doi:10.1242/jeb.205963 pmid:31375542 fatcat:4ds6et3lhvehzobf3qr3uxmyme

Rapid Prototyping in Orthopaedics: Principles and Applications [chapter]

Jamaluddin Abdullah, Ahmad Yusoff Hassan
2005 Bone Grafts And Bone Substitutes  
Acknowledgement The support from Universityy of Sciences Malaysia through Grant No. 0734107 is appreciated. The authors also acknowledge Mr.  ...  Najib Hussain, technical staff at the School of Mechanical Engineering for his dedicated laboratory support.  ...  (MIMICS) Reconstruct 3D model Solid Model (CAD) I - STL fileĨ • Rapid Prototyping Ĩ 3D physical model Fig. 10: Roadmap for orthopaedics modelling.  ... 
doi:10.1142/9789812775337_0034 fatcat:atp4td5wefhrpijja73rwp2k5e

Building Information Systems - Extended Building-Related Information Systems Based on Geospatial Standards [chapter]

Jrg Blankenbach, Catia Real
2012 Modern Information Systems  
The observer stands in the centre of the 3D building and can move on his own axis or change the line of sight in this scene.  ...  By the use of current trends in geo information science (e.g. 3D interior room models) these systems could be extended considerably.  ...  With the constructive functions of the CAD program 3D geo data can be generated, modified, and visualised.  ... 
doi:10.5772/38593 fatcat:mlqc4eszhrgsfg5fz5fb4n7qoe

Generating CAD Models from Sketches [chapter]

Sabine Roth-Koch
2002 From Geometric Modeling to Shape Modeling  
The ultimate goal of the application described in this paper is the conversion of two-dimensional sketches into three-dimensional CAD curves and surfaces.  ...  The virtual sketch model includes all the 'fuzziness' of the scribble and the therein expressed conceptual steps but is automatically represented in a sequence of real B-Spline curves.  ...  Surface-oriented 3D CAD packages and design modeller packages utilise the same basic geometrical functions for the description of regular and geometry.  ... 
doi:10.1007/978-0-387-35495-8_12 fatcat:tqyhpfe57nch5cbs3c2yv72vbi

Virtual Prototyping for Rapid Product Development [chapter]

S.H. Choi, H.H. Cheung
2012 Modeling and Simulation in Engineering  
Acknowledgements The authors would like to acknowledge the Research Grant Council of the Hong Kong SAR Government and the CRCG of the University of Hong Kong for their financial support for this project  ...  a physical prototype from a 3D CAD model layer by layer.  ...  The model can be generated from CAD designs or surface data captured from CT, MRI and laser 3D scanning. LM systems are widely adopted in manufacturing and medical applications to save cost and time.  ... 
doi:10.5772/25955 fatcat:vltbytt4zngzdawbxynji6wz7i

Usage of 3D printing in photostress investigation

Peter Ficzere
2015 Production Engineering Archives  
Particular attention should be paid to the further clarification of the used 3D printing material properties and characteristics because these determine the conditions and limits of applicability.  ...  This would be a new application field of 3D printing.  ...  The simplification and acceleration of this method is essential. Today, almost all parts have 3D CAD model.  ... 
doi:10.30657/pea.2015.07.04 fatcat:bd4ra7eqb5a7bhl6to3zm7u7tm

Calculation of non-deformed chip and gear geometry in power skiving using a CAD-based simulation

Nikolaos Tapoglou
2018 The International Journal of Advanced Manufacturing Technology  
Article: Tapoglou, N. (2019) Calculation of non-deformed chip and gear geometry in power skiving using a CAD-based simulation.  ...  This leads to the need for an accurate model that can visualise and simulate the cutting process, thus leading to the optimal parameters for the process.  ...  The first step of the simulation is the creation and positioning of the cutting tool profile in the 3D space.  ... 
doi:10.1007/s00170-018-2790-3 fatcat:xsixcsgryjhxfpydfmh4nwlxu4

Streak formation in flow over Biomimetic Fish Scale Arrays [article]

Muthukumar Muthuramalingam, Leo S. Villemin, Christoph Bruecker
2019 arXiv   pre-print
Flow simulations results were compared with surface oil-flow visualisations on the physical model of the surface placed in a flow channel.  ...  Numerical flow simulations and experiments with a physical model of the surface pattern in a flow channel mimic the flow over the fish surface with a laminar boundary layer.  ...  Avin Alexander Jesudoss for providing help on performing surface flow visualisation on the fish scale model.  ... 
arXiv:1904.12752v2 fatcat:2ofkkcbcyfhkdohjrzuv4zrvri

Geodetic Determining of Stockpile Volume of Mineral Excavated in Open Pit Mine/ Geodetické Určenie Objemu Vyťažiteľných Zásob Nerastu V Povrchovom Lome

Slavomír Labant, Hana Staňková, Roland Weiss
2013 GeoScience Engineering  
These graphical-calculating applications make possible not only 3D modelling and visualising of surfaces but also their analysing, especially then determining the volumetric data that represent various  ...  In the contemporary geodetic practice it is practically a must to use modern geodetic apparatuses and a variety of the CAD (Computer Aided Design) software for processing and visualising spatial data.  ...  Precision of determining the 3D model volume depends also on consistent work performed during modelling of the surface.  ... 
doi:10.2478/gse-2014-0049 fatcat:huhfhze6tne2baoe2j37g2qbni

Cosmic sculpture: a new way to visualise the cosmic microwave background

D L Clements, S Sato, A Portela Fonseca
2016 European journal of physics  
The CAD files used to produce the models discussed in this paper are made available.  ...  highly complementary approach to the usual 2D projections used in teaching and outreach work, and can also form the basis of undergraduate projects.  ...  This work used MeshLab, a tool developed with the support of the 3D-CoForm project.  ... 
doi:10.1088/0143-0807/38/1/015601 fatcat:tpdsalthengixkvijb5qdmp2ue

Curved Layer Fused Filament Fabrication Using Automated Toolpath Generation

Thomas Llewellyn-Jones, Robert Allen, Richard Trask
2016 3D Printing and Additive Manufacturing  
An automated method for the generation of curved layer toolpaths is demonstrated to produce 3D printed components with improved aesthetic and structural properties using fused filament fabrication printing  ...  Three case studies are shown, which demonstrate the ability of the G-code generating algorithm to resolve concave and convex structures.  ...  This is a volumetric calculation, requiring user inputs for the filament diameter and layer thickness.  ... 
doi:10.1089/3dp.2016.0033 pmid:32953939 pmcid:PMC7500010 fatcat:dzobvq4sqrgyxh5dcl4mfvlhou
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