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True Position of holes, without Diameter symbol in Control Box??

SAM-IMC
let me lay this out for you guys and gals the best I can:

I have Datum A wich is a inside Circle recessed into the top of the part. We will call this "Datum A"

I have another recessed circle on the bottom of the part. We will call this "Hole"

"Hole" has a dimension callout that reads as follows: Dia. 7.06"
[T.P./.010/A] Notice there's no Dia. Symbol in the Cntrl Frame

I have never seen this callout before without the Dia. Symbol in the control frame when in reference to a datum that is a circle or cylinder, have you?

If I run this with both features as Circles, I get a measurment of 0 (ZERO)

If I run this with both features as Cylinders, I get some actual numbers, but I don't know if they are correct.

If I run this with Datum A as a Cylinder and Hole as a Circle, I get 0(ZERO)

I am confused as to which way i am supposed to do this. Is the callout on the drawing messed up, or am I giving Pcdemon incorrect features to calc this dimension?

Any help would be greatly appreciated.

Sam
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  • let me lay this out for you guys and gals the best I can:

    I have Datum A wich is a inside Circle recessed into the top of the part. We will call this "Datum A"

    I have another recessed circle on the bottom of the part. We will call this "Hole"

    "Hole" has a dimension callout that reads as follows: Dia. 7.06"
    [T.P./.010/A] Notice there's no Dia. Symbol in the Cntrl Frame

    I have never seen this callout before without the Dia. Symbol in the control frame when in reference to a datum that is a circle or cylinder, have you?

    If I run this with both features as Circles, I get a measurment of 0 (ZERO)

    If I run this with both features as Cylinders, I get some actual numbers, but I don't know if they are correct.

    If I run this with Datum A as a Cylinder and Hole as a Circle, I get 0(ZERO)

    I am confused as to which way i am supposed to do this. Is the callout on the drawing messed up, or am I giving Pcdemon incorrect features to calc this dimension?

    Any help would be greatly appreciated.

    Sam

    If you could post part of the drawing it would help.

    From your description I can imagine a few possibilities.

    The Ø symbol should be there and is not due to oversight or other.

    Or I could be that the intent is to only control the location in a single axis, as a slot might be. The clue that this is the case would be in the basic dimensions. If there is only one basic dim locating the hole in one axis, I would go this way, but maybe report regular diametrical position too as a reference just in case.


    HTH
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  • let me lay this out for you guys and gals the best I can:

    I have Datum A wich is a inside Circle recessed into the top of the part. We will call this "Datum A"

    I have another recessed circle on the bottom of the part. We will call this "Hole"

    "Hole" has a dimension callout that reads as follows: Dia. 7.06"
    [T.P./.010/A] Notice there's no Dia. Symbol in the Cntrl Frame

    I have never seen this callout before without the Dia. Symbol in the control frame when in reference to a datum that is a circle or cylinder, have you?

    If I run this with both features as Circles, I get a measurment of 0 (ZERO)

    If I run this with both features as Cylinders, I get some actual numbers, but I don't know if they are correct.

    If I run this with Datum A as a Cylinder and Hole as a Circle, I get 0(ZERO)

    I am confused as to which way i am supposed to do this. Is the callout on the drawing messed up, or am I giving Pcdemon incorrect features to calc this dimension?

    Any help would be greatly appreciated.

    Sam

    If you could post part of the drawing it would help.

    From your description I can imagine a few possibilities.

    The Ø symbol should be there and is not due to oversight or other.

    Or I could be that the intent is to only control the location in a single axis, as a slot might be. The clue that this is the case would be in the basic dimensions. If there is only one basic dim locating the hole in one axis, I would go this way, but maybe report regular diametrical position too as a reference just in case.


    HTH
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