3D Scanning and Printing
Format: Lecture.
Learning Outcomes:
Students will be able to use various 3D printing techniques to create objects coming from CAD or 3D scanning techniques, and explain material safety and differences in use of techniques and tools.
Introduction:
- History of 3D printing and scanning
- When to use substractive techniques VS additive techniques
- Examples of 3D printed objects and applications (also in industry)
Safety and maintenance
- How to safely handle machines and materials
- Keeping the machines in good shape
- Cleaning up
3D scanning
- point cloud, triangulation, watertight, texture
- tomography Radon transform micro-CT
- scanned probe
- confocal
- serial sections
- opacity
- digitizer
- laser
- lidar
- array illumination
- time of flight
- photogrammetry 123D Catch PhotoScan VisualSFM
- speckle OpenKinect ReconstructMe Sense
- structured light laser pico-projector
- light stages
3D printers / techniques
- stereolithography
- fused-deposition molding extrusion contour crafting
- ink-jet binder
- ProJet PolyJet
- cut sheets
- selective laser sintering
- CLIP
- two photon
- digital
Materials
- ABS
- HIPS
- acrylic
- PLA
- Resins
Files and preparing them for printing
- STL / PLY / OBJ / VRML / STEP
- Support (removal)
- MeshLab netfabb meshmixer
- Normals and orientation
- Repairing and closing meshes
Software to use for 3D printing CAD and scan modification
- 123D
- SketchUp
- Fusion 360
- SolidWorks
- Rhino Grasshopper
- Blender
- FreeCAD
- OpenSCAD
- Antimony
- VTK
- Geomagic
- ReplicatorG Skeinforge Slic3r Cura
- Sketchfab
Post Processing / Finishing
- chemicals
- sanding / polishing
- post curing
- painting, varnish, protection
Assignment
- design and 3D print an object (small, few cm) that could not be made subtractively
- 3D scan an object (and optionally print it)