3D Scanning (How? (Non-Contact type (Structured light 3D scanning ( Link…
Structured light 3D scanning
projection of patterns consisting of many stripes at once and a camera system.
Laser Triangulation Scanning
The laser probe projects a line of laser light onto the surface while 2 sensor cameras continuously record the changing distance and shape of the laser line in three dimensions (XYZ) as it sweeps along the object.
Create a 3D image through the triangulation mechanism
Principle of a laser triangulation sensor. Two object positions are shown.
Contact Type (known as Digitiszer)
Mostly used for Part Inspection
Co-ordinate Measuring Machine
Computer Aided Inspection
Comparing CAD model with the scanned data
Scaled model of an artist's creation
Medical Device fitting
Creating 3D data files of the human face or figure
Creating digital data of engineering mockups such as clay or wood
Documenting Museum Pieces
Replicating parts that have no CAD data
The collected data can then be used to construct digital three-dimensional models (CAD model).
Challenge when converting Point-cloud to "Mesh" format.
GeoMagic - A software to post-process the point-cloud to mesh
Manual cleaning of the Mesh give a better result.
Holes in the mesh must be filled in.
The raw mesh data is not very good. All mesh files must be fine tweaked to get a high quality output.
From Point-Cloud to STL
A process to
of a physical object on its shape and possibly its appearance.
Data is in the form of [Point-Cloud.]
3D Point Cloud Editor
Preparation before 3D printing
Convert Point-Cloud to STL format