Tuesday 5 February 2013

The class apart technology - 3D laser scanning

To construct a three dimensional digital models, 3D laser scanning is employed. A 3D laser scanner is a device that analyzes a real-world object or environment to collect data on its shape and possibly its appearance. 

The so collected data is hence utilized for the 3D models. In the present scenario of technical advancements, the horizon of its applications is expanding day by day.

3D Laser Scannig Services

The 3D Laser Scanning technology use different mechanism for different surfaces. For flat profile shapes or simple convex curved surfaces a carriage system is used which has rigid arms held tightly in perpendicular relationship and each axis glides along a track.

For probing into crevasses and interior spaces with a small mouth opening an articulated arm with rigid bones and high precision angular sensors is employed. 

A combination of both methods is used, like an articulated arm suspended from a traveling carriage, for mapping bigger objects with interior cavities or overlapping surfaces.

3D laser scanning could benefit the design process in following ways:
  • It increases effectiveness working with complex parts and shapes.
  • It helps with design of products to accommodate someone else's part.
  • If CAD models are outdated, a 3D scan will provide an updated version.
  • Replacement of missing or older parts can be done.
It has influenced a number of sectors and has gained immense popularity setting apart other similar technologies.

Some of the areas where 3D laser scanning is heavily used are:
  • Apparel industry for wearable technology, protective wearing, thermal comfort, athletic or uniform equipment and mass customization.
  • Biomedical sector for obesity determination, rehabilitative engineering and body asymmetries.
  • Reverse engineering for standards or tolerance, FEA simulation and rapid prototyping.
  • Ergonomics for verification of models and seat design.
  • Construction industry and civil engineering.
  • Entertainment industry.
  • Material processing and production.
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