3D Solid Laser Modeling
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3D Solid Laser Modeling

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3D Solid Laser Modeling 3D Solid Laser Modeling Presentation Transcript

  • 3d Solid laser modeling
    Manufacturing Automation
    December 8th, 2010
    Presented By: Christopher N. Berry
  • Introduction
    3D Solid Laser Modeling is a modern technique used to accurately represent physical objects into the virtual world.
    Required Tools
    HD Laser (Picza3D Laser Scanner)
    Image Processing Technology (Dr. Picza3)
    CAD Software (SolidWorks)
  • What is Laser Modeling?
    Creation of point cloud system representing a geometric surface with a laser beam.
    Records distance values to the surface within the scanners field of view.
    The object is then recreated in a “reconstruction” software package.
  • PICZA 3D Laser Scanner
    Located in the Bell Hall 4th Floor IE Laboratory
  • Laser Scanner Mechanics
  • Data Acquisition
    Data from laser transmitted to computer via USB.
    Able to manipulate scan parameters.
    Resolution Quality
    Laser Beam Pitch
    Rotation Angle
    Object Height
  • Object Reconstruction
    Side View
    Top View
  • Data Conversion
    After reconstruction complete, save file format as “.STL”.
    This allows for post- processing of data in desired CAD program.
  • Post Processing
    Used to eliminate scanning errors
    Increases accuracy of scan
    Enables reconstructed object to be utilized in CAE platform.
  • Post Processing Phase 1:Importing Scans into SolidWorks
  • Enable SolidWorks Add-In “ScanTo3D”
    Step 1 of 14
  • Open File as “Mesh”
    Step 2 of 14
  • View Mesh of Part
    Step 3 of 14
  • Select “Mesh Prep Wizard”
    Step 4 of 14
  • Select the Mesh you Wish to Process
    Step 5 of 14
  • Select “No Orientation”
    Step 6 of 14
  • Use Tools to Select and Delete Excess Material
    Step 7 of 14
  • Hand Select Excess Material and Remove
    Step 8 of 14
  • Simplify Mesh Size
    Step 9 of 14
  • Change Global Smoothness
    Step 10 of 14
  • Increase Boundary Smoothness
    Step 11 of 14
    Before
    After
  • Fill Model Holes (Pre-Implementation)
    Step 12 of 14
  • Fill Model Holes (Post-Implementation)
  • Create Model Surface
    Step 13 of 14
  • Delete Surface Errors
    Step 14 of 14
  • Finalized Surface Model
  • Post Processing Phase 2:Post Processing in SolidWorks
  • Object is Broken Into Mesh Sections
  • Enable Mold Toolbar
  • Create Surface from Hole Edges
  • Pre-Fill Surface Technique
  • Pre-Fill Surface Application
  • Fill Surface Application
  • Pre-Fill Surface Application
  • Pre-Fill Surface Application
  • Pre-Fill Surface Application
  • Fill Surface Application
  • Pre-Fill Surface Application
  • Fill Surface Application
  • Finalize Desired Surface Fills
  • Perform Digital Render
  • What are the Benefits?
    Save time modeling complex components.
    Accurate representation of surfaces impossible to achieve with current solid modeling technology.
    Wood grains, bumpy surfaces, curves, grooves, etc.
    Allows for better analysis in CAE platforms.
    Motion simulation, fluid flow analysis, FEA analysis, etc.
  • What are the Drawbacks?
    High resolution scans mean large files.
    Usually post processing required.
    Requires high end technology
    RAM
    RAM limits number of data points that can be created.
    Processor Speed
    Determines how long it will take to create surface generation.
  • Questions?