wallybanger
Mechanical
Hey Guys,
I'm still really terrible with GD&T but this is a problem I have run across numerous times.
Is it bad form to dimension to a radius centre point?
The reason I ask is because in a lot of programs you can foreshorten radius dimensions but you can't then foreshorten the linear dimensions to the radius centre point. In my mind, this completely negates the act of foreshortening the radius dimension.
This problem is further compounded with tangent radii. Apparently you can't assume anything under the Y14.5 standard so, if you can't dimension to the centre of the tangent radii, is your only option to dimension to the point where the 2 radii meet? Is this the preferred method for dimensioning features in that scenario?
How about in a scenario where you have 2 lines coming in to meet at funny angles and, where they meet, you have a radius? Can you dimension to the centre point of that radius or should you be dimensioning to the point where those 2 lines meet? I find that dimensioning to the point where the lines meet can look somewhat ambiguous unless you actually place a point on the drawing.
I've been going through the standard and I haven't been able to find anything to address these questions.
Thanks,
I'm still really terrible with GD&T but this is a problem I have run across numerous times.
Is it bad form to dimension to a radius centre point?
The reason I ask is because in a lot of programs you can foreshorten radius dimensions but you can't then foreshorten the linear dimensions to the radius centre point. In my mind, this completely negates the act of foreshortening the radius dimension.
This problem is further compounded with tangent radii. Apparently you can't assume anything under the Y14.5 standard so, if you can't dimension to the centre of the tangent radii, is your only option to dimension to the point where the 2 radii meet? Is this the preferred method for dimensioning features in that scenario?
How about in a scenario where you have 2 lines coming in to meet at funny angles and, where they meet, you have a radius? Can you dimension to the centre point of that radius or should you be dimensioning to the point where those 2 lines meet? I find that dimensioning to the point where the lines meet can look somewhat ambiguous unless you actually place a point on the drawing.
I've been going through the standard and I haven't been able to find anything to address these questions.
Thanks,