Advanced Computer Aided Design





Harpic Bottle CAD Design



Surface model and CNC machining of a Harpic Bottle.



KEY SKILLS





CAD Modelling



CAD Rendering



CNC Operations



OVERVIEW





BRIEF



The objective was to give practical surface modelling experience using NX 11 across the various design and manufacturing activities for a consumer product. We were also expected to critically review the effectiveness of software tools and the contribution they could make to a typical design engineer’s workflow.



DELIVERABLES



  • NX 11 Surface Model
  • CNC Manufacture Information
  • 4000 Word Report


SOLUTION



The Harpic bottle chosen was the hardest difficulty due to the complex surfaces and details involved. This proved an excellent challenge of my surface modelling skills and was completed to a high degree of accuracy. Overall the project was an excellent way to enhance my CAD skills further and learn more about CNC processing.



SOFTWARE USED





Siemens NX11



Vericut



Blender



SURFACE MODELLING PROCESS





Raster Image



Lower Splines



Upper Splines



Connector Splines



First Surfaces



Upper and Side Surfaces



Other Surfaces



Mirror of Part



Solidifying Model



Additional Features



Render with Thread



Render with Lid



CNC MOULD PROCESS





CNC Mould



Radius Analysis



Draft Analysis



Mould Render



Face Milling



Rough Mill



Semi-finish Mill



Contour Area Mill 10mm



Z-Level Mill



Contour Area Mill 6mm



Vericut Analysis



Vericut Verification





Faheem Aziz (MEng, DIS)



Product Design Engineer