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March 2012

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CCP Offers eCAD Virtual Chart Gage System

eCAD virtual chart projected onto the same part at 20x and 50x.

Certified Comparator Products (CCP) has introduced the eCAD virtual chart gage system, an electronic overlay package available on specially configured CCP optical comparators.

eCAD creates a "virtual" chart gage, using DLP technology to accurately project a CAD model with tolerance bands onto the comparator screen. The CAD file is synchronized to the worktable motion so that as the table is moved, the projected CAD image tracks it accurately. As magnification is changed, eCAD automatically adjusts the CAD image magnification, so the CAD overlay is always correctly sized, the company said.

eCAD is designed to reduce costs by eliminating the need to maintain a large inventory of certified chart gages, and can improve accuracy by eliminating the errors inherent in making the chart master from the CAD file, the company said. Chart storage, cleaning and changeover requirements are eliminated.

eCAD is also designed to add flexibility to the comparator, enabling new part designs to be measured immediately without the need to make new charts. With eCAD, the comparator is a suitable measurement tool for rapid prototyping, said CCP.

eCAD is designed to represent multiple tolerance zones, using color bands to indicate various levels of precision requirements and to project tolerance zones in user-defined ways as translucent overlays or silhouettes. Change mags with the available magnification lenses on the comparator, which are automatically supported by the eCAD software. Parcentrality and keystone error compensation is also supported.

eCAD supports a range of common CAD file formats, including Gerber, Excellon, HPGL, PRT, EPS and DWG. Part origin and skew alignment are provided for, and both horizontal and vertical mirror image projection are supported, along with identification of material side, enabling maximum utilization and flexibility in the measurement setup, said the company.

For more information contact:

Timothy Fantauzzo

VP of Sales and Marketing


838 Distribution Drive

Beavercreek, OH 45434


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