It checks up to 30 critical dimensions and can ensure they are within 0.0002 in. of their specified tolerances. The device can handle parts up to 1.75 in. long and 1 in. in diameter.

In operation, parts are loaded via a vibratory feeder or gravity track. A screw-driven rod pushes them, one at a time, onto the unit’s rotary stage. The stage revolves through 360° in front of a camera lens optimized to take silhouettes of the part at various angles. The unit measures various dimensions such as diameters, lengths, angles, and radii, virtually anything that casts a shadow. Users can determine tolerances for each part. And all inspection data can be saved to a computer file.

ShadowGage noncontact