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3D Modeling for 3D Printing

Jeffrey Lancaster Emerging Technologies Coordinator

Columbia University Libraries

jeffrey.lancaster@columbia.edu @j_lancaster

3D Printing is easy, 3D Modeling is hard.

How it works

idea

model

machine code

object

Object

Cartesian Coordinates

x

y

z

x y

z

Fused Filament Fabrication

also with “sacrificial” materials

Other Fabrication Methods: Powder Bed Printing

Other Fabrication Methods: Photocured Resin

Other Fabrication Methods: CNC Milling

Machine Code

Makerware

.stl, .obj G-code!

Submission 3dprint.cul.columbia.edu

Model

@ DSC!

3D Studio Max! AutoCAD! Maya! SketchUp!

Blender! Rhino3D!

OpenSCAD!

When to design in which program?!Geometric

AutoCAD Sketchup

OpenSCAD SolidWorks

…

Organic Maya

blender Meshlab

…

Rhino 3DS Max

…

123D Design!

123D Catch!

Thingiverse!

Common Design Issues

Overlap/Angle!

Closed/Watertight Form!

Single Manifold!

willit3dprint.com

Demo OpenSCAD!

Questions?

Jeffrey Lancaster Emerging Technologies Coordinator

Columbia University Libraries

jeffrey.lancaster@columbia.edu @j_lancaster

3D Modeling for 3D Printing

Jeffrey Lancaster Emerging Technologies Coordinator

Columbia University Libraries

jeffrey.lancaster@columbia.edu @j_lancaster