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Distance of bottom of theoretical sphere to plane

JTM@AlloyP
Good morning PC-DMIS forum,

I am a little newer to CMM programing and hoping I can get some help in this endeavor.


if you can see , the cylinder size (highlighted in blue) is .711-.715 with a theoretical gage ball of .709 going into the cylinder the other dimension highlighted in blue is a distance from the bottom of the theoretical gage ball to a plane.

I have tried making the theoretical sphere using the cylinder and distancing the sphere to the plane but it comes out off, even when i use the "minus radius" button in distance. I believe I can accomplish this measurement, but feel I am missing a piece of the puzzle.

Can anyone here help me solve this issue? it is the last part of a rather robust program the captures most of these dimensions. if it helps the part is orientated so the plane that is being measured is facing up in Z.

Thank you all for helping me out with this.
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  • Another way
    ASSIGN/V1=CROSS(CYL1.IJK,CROSS (PL1.IJK,CYL1.IJK))
    Create a generic line at CYL1.XYZ+(CYL1.R-0.709)*V1
    Intersect this line with the first of the previous post, it's the center if the circle.
  • in reply to JEFMAN
    I think I keep getting close to what you are saying but something is still not working.

    the first way I believe I got really close but at the end, I couldn't intersect the line because PC-DMIS said the lines would never intersect (using the intersect line in construction)

    trying the second method I once again feel I have gotten really close, I just can't seem to type out the generic line as stated but feel if I can just type that out in the command window, this whole thing would work every time I start to type in "Generic, LINE" it automatically populates with " dependent, creastisian" (defiantly spelled that wrong) so i can not create the generic line as it is laid out.

    I apologize if I am missing something sort of basic, this part is probably one of the more complicated parts I ever had to program but if I can get this part right, it'll decrease inspection tie by hours and maybe even days.

    thank you for your patience
Reply
  • in reply to JEFMAN
    I think I keep getting close to what you are saying but something is still not working.

    the first way I believe I got really close but at the end, I couldn't intersect the line because PC-DMIS said the lines would never intersect (using the intersect line in construction)

    trying the second method I once again feel I have gotten really close, I just can't seem to type out the generic line as stated but feel if I can just type that out in the command window, this whole thing would work every time I start to type in "Generic, LINE" it automatically populates with " dependent, creastisian" (defiantly spelled that wrong) so i can not create the generic line as it is laid out.

    I apologize if I am missing something sort of basic, this part is probably one of the more complicated parts I ever had to program but if I can get this part right, it'll decrease inspection tie by hours and maybe even days.

    thank you for your patience
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