Lapik Ltd. - Russian production of
coordinate measuring machines
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Prismatic parts


The combination of continuous control of carriage inclination and rotating probe head increases performance and versatility when measuring prismatic parts without additional devices. 

The required additional inclination of the carriage is performed after the rotating probe head has been fixed in position (direction) necessary for particular measurement. 

This provides the opportunity to inspect previously inaccessible surfaces (front faces, angular holes, stepped surfaces, etc.) which considerably improves accuracy, increases throughput capability and the scope of inspection envelope. 

Measurement of taper slot 

The continuous control of carriage inclination was used for acquisition of measuring points from inspected surfaces as well as from taper slot surfaces. This allowed us to carry out measurement process in one setup which significantly increased throughput capability and inspection accuracy. 

The simultaneous inclination relative to the X,Y axes allows the stylus tip to “probe” taper slot including all mating surfaces.

Measurement of taper slot 

Consecutive inclination movements of the stylus in the hole with the flange are shown in the figure. 

The stylus inclination is necessary due to the difficult accessibility of surfaces of the deep hole (107 mm) with a small diameter (8 mm). 

Measurement of the deep accurate angular hole 

The deep angular stepped hole was measured using the stylus with rigid arm diameter of which must be commensurable with diameter of the stylus tip (see fig.). During the inspection of the hole with the cylinder “B” diameter o8 mm and angle of inclination 700, the stylus with arm diameter o3 mm and stylus tip diameter o5 mm was used. To prevent the stylus arm from touching surfaces of the part the stylus is additionally turned directly inside the hole by a small fractional angle. Thus, simultaneous inclination relative to the X,Y axes allows the stylus tip to “probe” the inner surface of the hole in a single approach.