CAD & Rapid Prototyping by 3- Dimensional Printing (3DP TM ) Rapid Toolers: Jordan Medeiros Stephanie Silberstein Hannah Yun.

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Presentation transcript:

CAD & Rapid Prototyping by 3- Dimensional Printing (3DP TM ) Rapid Toolers: Jordan Medeiros Stephanie Silberstein Hannah Yun

Recap: Tetrakaidecahedron

What’s the Point? Possible Applications - Structure -

Task 1: Verify Theoretical Predictions with Real World Testing and Analysis Theory: “Nearly Isotropic”? Real World Testing

Crystallography Highest Ordered Cubic Point Group Symmetries

Testing Faces

Printing & De-powdering

Results:

Impregnating with Wax!

Symmetries

Overall Printing Process

Materials Selection

 Cyanoacrylate (C5H5NO2) “Z Bond 101” – Moisture Cured Flexural Strength: 17.2 MPa* E ~ 2.7 GPa* * Jim Bredt, ZCorp

Task 2: Differentiate Between Which Results are due to the Structure and Which are Due to the Fabrication Process E 1 E 2 E 3

Load Cell & Displacement Selection Using Beam Theory:

Task 3: Inspect How Properties Change as We approach Strut Length Boundaries Tetrakaidecahedron Property Geometric Parameter

Task 3 - Method

Software Issues

Other Issues: Cost  Cost of Random Aluminum Foam, June 1998 (ERG in Oakland, CA) 24 pieces: 0.8 x 1.6" x 9.4"/Dogbone: $70  How much would it cost to 3DP our structure, factoring in time?

Gantt Chart

Questions?