When engineers at 3M‚’s Occupational Health and Environmental Safety division started designing a new face shield for welders, they realized they needed to improve aesthetics and needed new CAD data to revise the model. Trial and error methods were not an option. Instead, 3M engineers sent a picture of the clay shield mock-up to GKS Inspection Services, a laser scanning service bureau.
3M engineers outsourced a picture of a clay model of a face shield to a service bureau where laser scanning techniques eliminated traditional CAD iterations.
Laser scanning projects a line of laser light onto surfaces while cameras continuously triangulate the changing distance and profile of the laser line as it sweeps along. The problem of missing data on an irregularly shaped surface is eliminated. The laser measures fine details and captures complex free form geometry so that the object can be exactly replicated.
3M在几个小时内收到了重新设计的面罩的完整扫描数据和CAD模型。从那里开始，工程师可以在3D CAD中完成设计，以切割成品的模具。使用此激光扫描过程，3M估计它节省了3000-5000美元的CAD建模时间。在两天内，3M创建了盾牌的快速原型。
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www.gks.com
::Design World::
Filed Under:3D CAD,Digital manufacturing,Lasers
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