Slot called out for True Position and Full Radius at 2 end.
Slot called out for True Position and Full Radius at 2 end.
(OP)
Hi All,
Please see attached picture and help me out....
1/ Will 2 Radii need to be inspected for size? If yes what is a tolerance, +/-.002?
2/ What does True Position call for
(a) Mid point of slot width and center of 2 radii?
(b) Mid point of slot width or center of 2 radii?
(c) Mid point of slot width only?
---
For question 2, (c) is my answer.
To me, with True Position, 000(M), the matting part (pin/rod...) is only allowed to move .002" MAX (form reference datum with distance |2.558"|) if the width is made at MAXIMUM (.257").
Thanks!
Please see attached picture and help me out....
1/ Will 2 Radii need to be inspected for size? If yes what is a tolerance, +/-.002?
2/ What does True Position call for
(a) Mid point of slot width and center of 2 radii?
(b) Mid point of slot width or center of 2 radii?
(c) Mid point of slot width only?
---
For question 2, (c) is my answer.
To me, with True Position, 000(M), the matting part (pin/rod...) is only allowed to move .002" MAX (form reference datum with distance |2.558"|) if the width is made at MAXIMUM (.257").
Thanks!





RE: Slot called out for True Position and Full Radius at 2 end.
The maximum position tolerance will be .004 (because the size tolerance is ±.002). So if you mean that a mating pin can move .002 to one side (max) I suppose that's true. That mating pin will have its own tolerance of course, so there may be other variables to consider.
John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems
RE: Slot called out for True Position and Full Radius at 2 end.
From Fig. 7-33 on P125 (ASME Y14.5-2009), it stated "Tolerance zone equal to positional tolerance) which is ZERO for this case. Doesn't it use (M)to gain bonus here?
Thanks, Brandon
RE: Slot called out for True Position and Full Radius at 2 end.
The figure doesn't mention it, but the value of P can presumably grow if the slot is made at a different size; that's called bonus tolerance.
John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems
RE: Slot called out for True Position and Full Radius at 2 end.
(The ZERO Tol is in my example)
RE: Slot called out for True Position and Full Radius at 2 end.
John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems