3D PRINTING Flashcards
3D printing underlying concept
3D objects created by adding layer upon lyaer of material
materials used (3)
- plastic
- metal
- human tissue (future)
start from what
3D geometric model
3D printing medical applications (4)
- preprocedural planning / simulation
- patient consultation
- medical devices
- medical education
How to print (4)
- poligonal model STL
- preprocessing
- 3D printing
- post processing & finishing
info source for poligonal model STL (2)
- medical images DICOM
2. point cloud
pre-processing tasks (5)
- refine/check model
- check STL file for error & repair
- position the model
- create supports
- slicing
what is input data
approximate representation of object by triangle mesh
input format
STL
what does slicing determine
precision of prototype
2 slicing options
- uniform slicing
2. adaptive slicing
what is uniform slicing
what is uniform slicing
what is adaptive slicing
thickness chosen according to surface curvature
position the model: key issues
- ccuracy
- construction time
- support structure
- trapped volume
printing technologies
- photopolymerization
- sintering
- sprezzatura
- gluing
- extrusion
printing technologies + their materials
- photopolymerization (resins-photopolymers)
- sintering (thermoplastics)
- sprezzatura (ceramic & metallic powders)
- gluing (paper sheet)
- extrusion (PLA-ABS)
LOW COST 3D TECHNOLOGY
mainly based on
FMD technology
material used
plastic
Pros of low cost 3D tech (5)
- low cost
- easy to use
- reduced printer size
- no post processing
- limited maitenance
Cons of low cost tech (2)
- reduced construction volume
2. limited resolution
