Rapid Assemblers: From Analog to Digital Additive Manufacturing Computational Synthesis Lab Hod...
-
Upload
matthew-parker -
Category
Documents
-
view
219 -
download
0
Transcript of Rapid Assemblers: From Analog to Digital Additive Manufacturing Computational Synthesis Lab Hod...
Rapid Assemblers:From Analog to Digital Additive
Manufacturing
ComputationalComputationalSynthesis LabSynthesis Lab
Hod Lipson, Jonathan HillerMechanical & Aerospace EngineeringComputing & Information ScienceCornell University
Conclusions
• Digital Materials– Comprise lattice of physical voxels– High precision, work with incompatible materials – Tunable properties
• Rapid Assemblers– Assembles millions of prefabricated components into a
integrated active structure– Parallel (laser printer)– Serial (inkjet printer)
Printable Robots
Fab@home Model 1
Fab@home Model 2
With Max Lobovsky
With Larry Bonassar, Daniel Cohen
Zinc-air Batteries
Zinc-Air
IPMC Actuators
With Evan Malone
Gershenfeld, 2005
Digital Materials
70010,00025,00080,000187,000363,0001,000,0004,500,000
• Challenges• How to make voxels • How to assemble billions of voxels• How to simulate and design voxel-based systems
Key Challenges
• How to fabricate voxels
• How to assemble billions of voxels
• How to simulate and design in voxel space
Printing Digital Materials
Parallel Assembly
Material Feeder
Build Chamber
Fabricator
With Jonathan Hiller
Spheres
3D Circuits
3D Circuits
Printing Digital Materials
Rapid Serial Assembly
VoxJet
Accelerated x4
Voxels
Tunable Material Properties
Tiles
Modeling - COMSOL
Simulating: Relaxation
Tile Precision
Dithering Materials
Tuning Elastic modulus
Acrylic / Aluminum Dithering
0
500
1000
1500
2000
2500
3000
3500
4000
4500
0 0.2 0.4 0.6 0.8 1
% Aluminum
Ela
stic
mo
du
lus
(MP
a)
Tuning CTE
CTE, Aluminum/Zirconium Tungstate
-1.00E-02
-5.00E-03
0.00E+00
5.00E-03
1.00E-02
1.50E-02
2.00E-02
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95
Temperater (C)
Elo
ng
atio
n (
mm
)
100% Al
0% Al
15% Al
43%Al
Auxetic Materials
Spheres
Precision
x 0.5 x 0.1
Smart Voxels
Future Directions
500 µm
500µm
Electrical conductivity
3D Micro-fluidics
Heterogeneous Tissue Engineering
Gershenfeld, 2005
From Analog to Digital
Conclusions
• Digital Materials– Comprise lattice of physical voxels– High precision, work with incompatible materials – Tunable properties
• Rapid Assemblers– Assembles millions of prefabricated components into a integrated
active structure– Parallel (laser printer)– Serial (inkjet printer)
• New functionality– Desktop manufacturing of complex, 3D integrated active devices,
without special tooling
Jeff I. Lipton
Daniel L. Cohen Evan Malone
Jonathan Hiller