Design for 3D Printing

1
Design for 3D Printing
2
Cody Wilson -Arkansas
3
(No Transcript)
4
(No Transcript)
5
(No Transcript)
6

• Water bottle holder for my recumbent bicycle's
  oval shaped frame.
• Replacement for the plastic table clamp of an old
  Luxo lamp
• Replacement plastic foot for a camera tripod
• Extension for my mouse to make it large enough
  for my hand
• Z shaped key for an antique Chinese brass lock

7
(No Transcript)
8
(No Transcript)
9
(No Transcript)
10
(No Transcript)
11

• Material extrusion
• Material jetting
• Binder jetting
• Sheet lamination printers
• Vat photopolymerization
• Powder bed fusion
• Selective Laser Sintering (SLS)
• Selective heat sintering (SHS)
• Direct Metal Laser Sintering (DMLS)
• Directed energy deposition

12
(No Transcript)
13

• File sizes
• 50 to 64 MB, and a polygon count limit of 500,000
  polygons
• Polygon sizes
• Small enough to make smooth surfaces
• Not too small, makes work for the printer,
  minimum detail size printer can handle
• Modeling Precision
• In 3D design packages, you can have exact fit.
  3D printers may not print exactly what you have
  designed.

14
(No Transcript)
15

• Acrylonitrile Butadiene Styrene (ABS)
• Polylactic acid (PLA)
• Aliphatic polyamide (nylon)
• Polyethylene terephthalate (PET)
• LAYWOO-D3
• Photopolymers
• Metal
• Food
• Cells

16
(No Transcript)
17
(No Transcript)
18
(No Transcript)
19
(No Transcript)
20
(No Transcript)
21
(No Transcript)
22
Watertight
23
Manifold

• A manifold vertex is one that is connected to
  another vertex by an edge
• A manifold edge is one that has exactly two
  polygons associated with it

24

• A vertex without an edge
• An edge without a polygon
• An edge from a polygon to a single vertex
• An edge between vertices of two different
  polygons, but not associated with any polygon
• Non-manifold edges surrounding a polygon (the
  polygon may be unneeded)
• Two vertices that are very, very close together
  and have separate edges when they should be in
  the same location and share edges, so they leave
  a tiny hole in the surface
• A missing polygon causing a hole in the surface

25
Non-contiguous faces
26

• Degenerate geometry With faces that have no area
  and edges that have no length.
• Distorted geometry It has faces that are not
  flat.
• Improper thickness It has walls that are too
  thin..
• Too sharp It has edges that are too sharp, and
  will not print correctly, or the object may break
  during or after printing because it is too thin
  and fragile.
• Too much overhang It has polygons that do not
  have Supports.

27
Wall Thickness
28
(No Transcript)
29
Dyeing and Painting
30
(No Transcript)