Exact Dimension marking

[mleadley]

I have a drawing with a lot of holes. The Iso standard suggests one way of dimensioning this is to put theoretically exact dimensions to each hole, and then put an overall positional tolerance which is a diameter in which the centre can wander. The way a theo exact dim is drawn is no tol and a surrounded by a square box. Any ideas how to get SWX to do this?

Cheers,

Max

 

[TheTick]

It's calles a basic dimension. It's controlled under tolerance type, the same place you set tolerance types for limit/bilateral/symmetric tolerances for an individual dimension.