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line profile & diameter tolerance

josephM
Hello,
I am a new member seeking for help as I can't figure out how to go about this, please refer to the screen shot attached. both of the flag note and the line profile tolerance applied to the bottom groove, between a and b. the flagnote is to omit prime and paint


it's my first time running into a line profile with the diametrical tolerance together. I can create a Xactmeasure, but I can't find anywhere to input the diameter symbol. please excuse my lack of knowledge, but any help on this subject is greatly appreciated.

the software I am using is PC-Dmis CAD++ V2017 SP5 for Romer Arm.

thank you,
Joseph
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  • Dan,
    the screenshot is the cut-section, the groove is all around like a pocket at the bottom of the part.

    what I did is select the active working plane as Yplus, insert a new scan, select all the faces of the groove and taking hit all around
    I was able to create a FCF with the unilateral tolerance to one side, like you have it.
    can you shed some light if this one way to approach it? Slight smile

    Thanks!
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  • Dan,
    the screenshot is the cut-section, the groove is all around like a pocket at the bottom of the part.

    what I did is select the active working plane as Yplus, insert a new scan, select all the faces of the groove and taking hit all around
    I was able to create a FCF with the unilateral tolerance to one side, like you have it.
    can you shed some light if this one way to approach it? Slight smile

    Thanks!
Children
  • in reply to josephM
    sounds legit on the probing approach!

    make sure the alignment you're using to report the scan back to makes sense for what you're doing! this FCF doesn't call out datums for you to use, so where you PUT the alignment will directly effect how the software calculates your GDT output!

    also, would like to comment on the MMC symbol.. I don't like it there because it is pointing at area A-B (which is 6 surfaces not including the radial edge breaks at the sharp corners)...how do you quantify what the MMC of an irregular surface such as that would be? IDK lol​​​​​​​. I believe their intent was to tie the MMC to a particular diameter and use that in the FCF (which could be legit) but since everything is all up in the air, I still stick by what I said above until your customer could provide further clarification
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