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
it simplifies the trial-and-error method
product design represents approximately one-half the engineering costs
None of these
there is better coordination in the materials-handling area

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Automation System
Today, programmable controllers:

are relatively low cost compared with the original digital equipment available for industrial control
can be cost effective even when replacing just a few relays
None of these
are more powerful then the first controllers on the market
All of these

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