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Create polyline circle and scan

I need to measure the profile of the shoulder of a counterbore. It's kind of thin.... 1 mm of land on a 35mm diameter bore. How would I go about drawing a polyline on the bore shoulder, 35.5mm in diameter? I want to use the polyline to scan the profile. I'm a total newbie. Trying to learn how to program.
Thanks for any help you can offer.
  • Why not use the planar circle scan? It is available in the autoplane measurement strategy.
  • I would use a basic scan circle/plane with a 1 mm ball on 35.4 diameter.
  • Thanks for the suggestions. vpt.se, When I choose autoplane, and then pull down the selection for a circle, it seems that just switches the dialogue to the auto measure circle. Wherein, the probe approaches from the center of the bore. I need the probe to approach from a vector parallel to the bore axis.
    vpt.se and Jefman, On the measure auto circle dialogue, I did try to setup measurement strategy tab in the lower window by selecting adaptive circle scan, but again I can't get the probe to approach parallel to the pore axis.

    I don't know where to select measure "basic scan circle/plane". I would love to see that somewhere. :-)
    I played around with the insert scan circle a bit. I think the initvec and cutvec details will be what I need to play with. I am measuring 6 of these features, each of which are located at 60 degree intervals radially about the B datum(X) and the bore axes are at a 3 degree angle from the X Datum and along its radial direction. So I think I will need 6 different sets of these vectors. Probably some way to determine that using pcdmis.


    Attached Files
  • Insert/basic scan/circle/plane.
    You will have to :
    ASSIGN/V1=DEG2RAD(3)
    ASSIGN/V2=COS(V1)
    ASSIGN/V3=SIN(V1)
    Assuming that your alignment is on the detail C x from bottom to top and Z from right to left, create a local alignment with i=V3, j=0 and k=V2, then create a clear point at x= radius of scan,Y=0 and Z=50 f(for example), disable the clear plane in the scan window and try it... repeat the clear point after the scan, and dimension the plane in the previous alignment.
  • Thanks, I'll need to do the appropriate trig for each of these but I think I can figure it out based on your description. X does go from right to left, but z rotates from 30 degrees in 60 degree increments. I might just suck it up and just drop the hits manually to get a profile. As you can see this particular tolerance is very forgiving. BTW, is there a way to go back and edit a post. I might like to remove the graphics.
  • There should be a edit button in the lower right corner. If its not buggy again
  • You are clicking the wrong icon.

    You should be selecting "measurement strategies" and not the actual auto feature selection. The strategies tab looks like a trident.