Recent content by tost

Drawoh, When you are answering assume only 0.2 and not 0.2/50

ctopher Datum A is a plane. CheckeRon Also I have attached an example from reliable source which explains this symbology. Drawoh, "Your two diagrams show a different distance between datum A and your edge." I did not get what you intended to say above. Let me say that I define the Ø50 surface...

Ringman, I have myself seen this kind of notation for first time may be from ISO. But let us forget that part consider only 0.2 instead of 0.5/50 than what is your thought

Ringman, It is true but in both of my cases set of the parallel planes will lie at distance of 0.2. only difference being in first case it is equally offset by 0.1 in both direction In other case 0.2 in one direction.

Hi, Could you help me interpret the parallelism GD & T. figure is attached. I have shown my interpretation , I am not sure which one is correct.

Drawoh, Idea was to control the angularity and the height of centre point which should be within plusminus .05sin(theta). In case axym and michal77 is also thinking in similar fashion than it is achieved. Keeping my requirement in mind could you please let me know the way you would have...

kmansoor, It might be legal to specify but as you said parts are being produced from quite some time how is quality inspection been done with this kind of condition.

Weavedreamer, I have attched an example from the standard. Do you feel it is incomplete ? Drawoh, I have my doubts if position tolerance is for FOS. Please refer the attached example http://files.engineering.com/getfile.aspx?folder=4f1061ba-97a3-4466-a03a-e0b3b0394661&file=example_standard.JPG

There is a similar example in ISO 1101 p37, only difference being datums precedence is otherway but tolerance zone remains same. What I do not understand is, if basic dimension 35 is not basic would it make any difference. The tolerance zone would still be same ?

Yes it is but given on Surface which means simulated plane will be parallel to surface at a distance of ± 0.05, but this toleranc is applicable on angular basic dimension and not on 54.52.

Weavedreamer, Please see the attached example, that would explain more precisely. Dimension which is questionable is 54.52http://files.engineering.com/getfile.aspx?folder=c65d60b5-52f7-4453-bb49-d7e02697c711&file=example.JPG

Ringman, I am not able to visualise Datum B since you have defined it as bottom edge, what this means are you trying to define an edge as Datum ?

Hi, Is it correct to have only basic dimension without a position tolerance for a part ?