3D digitizer

3D digitizer

A graphics input system that records x, y and z coordinates of a real object. Contact is made with various points on the object's surface by a light sensor, sound sensor, robotic instrument or pen. See digitizer tablet.


Digitizing Three Dimensions
The 3DRAW PRO 3D digitizer from Polhemus used a pen to touch the object's surface. This device recorded the x, y and z coordinates of the tip position in 3-dimensional space and output them directly into popular CAD and graphics programs. (Image courtesy of Polhemus, Inc.)
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Brio then digitally scanned the model using a Microscribe 3D digitizer, which imported the 3D points directly into Couillard's favorite 3D modeling software, a NURBS-surfacing application called Rhinoceros, from Robert McNeel & Associates (www.
The I-DEAS Reverse Engineering/Inspection Mold Manufacturing Package offers all the functionality of the I-DEAS Mold Design and Manufacturing package plus advanced surface evaluation, 3D digitizer support, and computer-aided verification.
showed a mechanical 3D digitizer called the Metrecom.
As sort of a 3D digitizer for objects, a CMM has a robotic arm that touches all of a part's points and surfaces, measuring tolerances, clearances and so forth.
A manual 3D digitizer allows the user to freely define the setup for gathering point data and cross-sections from a model.
For companies that do not have a CMM, available technologies include scanners and portable 3D digitizers.