Automation System
Stepping motors:

can run at varying speeds
do not require commutators
All of these
can run both clockwise and counterclockwise
can be built to index different amounts by changing the pole configuration

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Automation System
One of the major benefits of using CAD in tool design is that:

tool motions can be checked to see if there is interference between the tool and the object
None of these
there is better coordination in the materials-handling area
product design represents approximately one-half the engineering costs
it simplifies the trial-and-error method

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