GD&T

#053 / Interview Mechanical Engineering Medium

What two main benefits do you typically gain when using a positional tolerance over a coordinate one?

Expand Hint
Hint 2
Think of tolerance zone area is changing between a positional vs coordinate tolerance.
Positional GD&T allow parts to more easily be produced because you have the same functional performance, but with 56% more tolerance allowance. There is a greater chance the hardware will meet the requirements, which reduces costs overall.
The datums from positional GD&T allow parts to be inspected more quickly and consistently.
Positional GD&T allow parts to more easily be produced because you have the same functional performance, but with 56% more tolerance allowance. There is a greater chance the hardware will meet the requirements, which reduces costs overall.

The datums from positional GD&T allow parts to be inspected more quickly and consistently.


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