3. Training control operators

An operator visually checking the absence of burrs at the injection point of a series of plastic parts. The repeatability of the check will depend on :

• the optical tool used (microscope, magnifying glass, light, etc.) and its setting (objective magnification);

• the speed of the metal parts;

• eye strain ;

• disturbing external events (noise, movement, discussion, etc.) ;

• reduced attention span.

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