A short introduction to 3D Printing (rapid prototyping / additive manufacturing) techniques. Made as an introduction for the DhubFab and FabLabBarcelona students.

1. 3D Print
A short introduction
Guillem Camprodon, 2010 Images copyright is owned by they respective brands and companies.

2. Subtractive Additive
manufacturing
manufacturing

3. 3D Print Techniques
Stereolithography (SL) Photopolymer (also Digital Light Projection)
Selective laser sintering (SLS) Thermoplastics, Metals (DMLS
and EBM)...
Fused Deposition Modelling (FDM) Thermoplastics
Inkjet 3D Printing Powder

4. 3D Print Techniques
EXPO
Stereolithography (SL) Photopolymer (also Digital Light Projection)
Selective laser sintering (SLS) Thermoplastics, Metals (DMLS
and EBM)...
Fused Deposition Modelling (FDM) Thermoplastics
Inkjet 3D Printing Powder
HP, MAKERBOT
Z-CORP

5. Stereolithography
UV LASER +
PHOTOPOLYMER
A liquid photosensitive
polymers that solidify
when exposed to
ultraviolet light.
COMPLEXITY

6. Stereolithography
COMPLEXITY

7. Laser sintering
POWERFULL LASER +
POWDER MATERIAL
A high power laser fuse
small particles of
plastic, metal, ceramic,
or glass powders.
MATERIAL RANGE

8. Laser sintering
MATERIAL RANGE

9. Fused Desposition Modelling
PLASTIC EXTRUDER +
CNC PLATFORM
An extruder put small
beads of thermoplastic
material to form layers
on to a CNC controlled
plattform. The material
hardens immediately
after extrusion from
the nozzle.
STRENGTH, DURABILITY

10. Fused Desposition Modelling
STRENGTH, DURABILITY

11. Fused Desposition Modelling
DIY
MakerBot RepRap Fab@Home

12. Ink-jet Powder 3D Printing
POWDER (Plaster or
Resin) + BINDER (Colour,
CMYK)
A layer of powder is
spread at a time and an
inkjet printing a colour
binder draws the cross-
section of the part. The
process is repeated until
every layer is printed.
SPEED, COLOR

13. Inkjet Powder 3D Printing
SPEED, COLOR

14. Z-Corp Z510
POWDER (special plaster) + BINDER (liquid)

15. Z-Corp Z510
Powder Materials
zp®102 - High
Performance Powder Standard Mock-ups
zp®130 - High Better details and Fast and colour
Performance Powder colour precision mock-ups
zp®131 - Premium Better details and Functional fit and
Performance Powder strength testing
zp®140 - High Water cure and
Performance Plus Easy
Powder vivid colours
z®Cast 501 - Direct Casting molds for
Aluminium Casting
Casting Powder non-ferrous metals
zp®15e - Specialty Elastomer
Rubber like parts
Powder infiltration ready
• Part Infiltration Wax Dip
Z-Bond™ Cyanoacrylate Brush
Z-Max™ Epoxy Spray or Brush

16. From the Computer
to the Model
Rhino, SolidWorks, *.STL Printer Soft ware
SketchUp (plugin),
Blender, MESH to LAYERS 3D Printer
3ds MAX...
solid cube_corner
3D Triangular mesh facet normal 0.0 -1.0 0.0
outer loop
defining the solid vertex 0.0 0.0 0.0
vertex 1.0 0.0 0.0
vertex 0.0 0.0 1.0
endloop...
end solid

17. Some tricks for exporting
*.STL files
Check your model is completly closed (Rhino. Analise >
Show Naked Edges)
Export the model as *.STL (Rhino. Check export closed
geometry only)
If the machine soft ware says the file is not
printable > Open the *.STL file with a 3D editor
and use the mesh repairing tools to close it (Rhino.
Mesh > Fill holes)