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ParaShape Parametric Approach to Personal Design Shadan - PowerPoint PPT Presentation

May 17, 2023 •285 likes •498 views

ParaShape Parametric Approach to Personal Design Shadan Sadeghianborojeni Master of Computer Science Student at the University of Bonn Motivation ? 3D Idea Print Model Who is the User? Novice User Expert User Initial Survey Expert Users

  1. ParaShape Parametric Approach to Personal Design Shadan Sadeghianborojeni Master of Computer Science Student at the University of Bonn

  2. Motivation ? 3D Idea Print Model

  3. Who is the User? Novice User Expert User

  4. Initial Survey Expert Users Novice Users • Use WYSIWYG CAD • Use pen and paper and to visualize design ideas to visualize design ideas (AutoCAD) • Think more • Like composing parts functionalities and to make complex objects learnability makes a tool • Spend minimum 30 usable • Spend minimum 30 minutes on a design minutes on a design visualization visualization

  5. Related Work •

  6. Related Work (Problems) CAD 3D Creators/Customizers 3D model libraries • Static models, 3D modeling • High learning curve • Small range of object models skill required for customizing covered • Complex UI

  7. Requirements s H l e d i o g m h D 3 r t e c e a j C b d o a f a o p b e a g i n b l a i r i t h l y g High flexibility of the existing 3D models for customization i i t H o y f o 3 f D c o m d Understandable interface o e d r e e l u c s o e d e Easy and fast search and browsing for the models Understandable units of measurement High learnability of the system Capability of making complex 3D models without having 3D modeling skill m e t s y s e h t f o y c n e i c i f f e e m i T

  8. Makerbot Customizer • Met 5 out of 10 of our system requirements • Low system usability scale (52%) • Users feedback not satisfactory

  9. Hypotheses of ParaShape Component-based Modeling Primitive Instancing of Components Units of Measurements Component Code Templates

  10. H1:Component-based Modeling Every object is made of its composing components

  11. H2: Primitive Instancing of Components

  12. H3: Units of Measurement • Metric Units: a cylinder with a cross section radius of 10 millimeters and height of 44 millimeters • Market Units: AAA battery 76% rated the market units of measurement as a more acceptable system: is more familiar, prevents measurement errors

  13. H4: Component Code Templates Increases 3D model code readability Supports 3D model code reuse Prevents errors

  14. Paper Prototype • Qualitative user study • Separate questionnaires for both user groups • Comments and suggestions used as requirements for final mockup

  15. Mockup

  16. Mockup

  17. Evaluation of Mockup • PSSUQ Results • Hypotheses Verification H1: Component-based modeling Overall 85% H2: Primitive instancing of components SysQual 86% H3: Units of measurement InfoQual 87% H4: Component code templates IntQual 88%

  18. Future Work • Implement a working system of ParaShape • Evaluate the system with 3D printers • Using other interaction techniques (digital pen, virtual clay, etc.) • Prevent 3D printing mistakes ( printability of the model, ergonomics, cost)

  19. Conclusion • The goal of personal design is to make everyone able to turn their ideas into physical objects. • ParaShape proved that by using the knowledge of experts, we can make almost everyone able to make complex 3D models needless of having 3D modeling background.

  20. Thank you!

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