Small mechanical components and detailed objects normally benefit from a scanner designed for close-range capture, fine point spacing and stable tracking. Blue-laser or hybrid modes can help on demanding geometry, but the part surface and preparation remain important.

A handheld scanner is useful for products, people, vehicle parts and objects that cannot be placed on a turntable. Wireless operation can make site work easier, while marker tracking and adequate working distance help maintain capture quality on larger items.

Accuracy describes how closely measurements represent the real object; resolution describes how much surface detail is captured. The required level should be set by the final task. Reverse-engineered interfaces and inspection work usually need tighter control than visual archiving or presentation models.

A scanner usually produces mesh data rather than an automatically editable engineering model. Confirm the computer requirements, scan software, export formats and whether your workflow also needs mesh repair, alignment, CAD reconstruction or dimensional validation.