1. spring 2015

2. What is “desktop” 3D printing?
3D printing has been around for decades, but was inaccessible to many schools due to high costs.
Desktop 3D printers provide the same technology at a fraction of the price.
Then
Now

3. Subtractive vs. Additive Manufacturing
Subtractive (Traditional) Manufacturing
CNC routers, drills, lathes, saws, etc.
Start with something big and work your way down
Examples: Carving a statue, cookie cutters
Additive Manufacturing (AM)
“3D printers” (FFF, SLA, SLS, DMLS, Polyjet)
Start with nothing, build up layer by layer
Examples: Laying bricks, painting a picture

4. Method: Fused Filament Fabrication (FFF)
Material: Thermoplastic Filament

5. Method: Stereolithography (SLA) Material: Photoreactive resin

6. Material: Photocurable Resin
Method: Polyjet
Material: Photocurable Resin

7. Method: Direct Metal Laser Sintering Material: Powdered Metal

8. Workflow 3D Creation (CAD, Scanning, Downloading)
123D Design, Sketchup, OpenSCAD
Scaling and Slicing
Cura, Slic3r, Repetier
Printing and Post-processing

9. Example A: Nautilus Gears
Download
Edit
Slice
Print

10. Example B: Coffee Mug
Scan
Edit
Slice
Print

11. Model Jet Engine

12. Cubic Trisection

13. Bust of Michelangelo’s David

14. “Voronoi” Bracelet

15. Lithophane of Da Vinci’s Mona Lisa

16. Music Box

17. Made in Space Wrench

18. Questions?