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How to create a gage point on a taper, on a drawing?

How to create a gage point on a taper, on a drawing?

How to create a gage point on a taper, on a drawing?

(OP)
I need to set a gauge point for a tapered shaft that is set down inside a bore.  I have a section view showing the tapered shaft, and I need to create dimensions showing a point 3/8" down from a datum surface, so it can be measured on a CMM.  However, I can't figure out how to dimension a nonexistant point on a taper.  Is there some way to make a sketch point visable/selectable in a drawing?

RE: How to create a gage point on a taper, on a drawing?

You can add the dimensioning points directly on the drawing,

Or, you can define them in the 3D model (points or sketch), and turn on the "3D wireframe" option in the view properties to be able to dimension to them.  

RE: How to create a gage point on a taper, on a drawing?

jackk's 3D process will work great.
On the drawing only side:
Create a line (dim driven).375 from Datum line, or, offset from Datum Line in view. Use the point intersection command, pick the new .375 line and the taper line. You now have a point to dim to.
I find it is a good idea to "fix" these features, they can sometimes move on you.
  

Harold G. Morgan
CATIA, QA, CNC & CMM Programmer

RE: How to create a gage point on a taper, on a drawing?

(OP)
Thanks for the replies.  Had a guy from another department come over and show me.  

In a previous life with a different software I would do this with a sketch in the model, but couldn't find a way to make a sketch visible here.  Ended up using HGMorgans's method.  

Not sure what you mean by "fix" though.   

RE: How to create a gage point on a taper, on a drawing?

Select point (or other feature), right click, select Point.x Object, then "fix". This locks the point to the view. I have had points move on me (if you pick the point and it's not "fixed, it can be moved, not good). The "fix" keeps that from happening.

Harold G. Morgan
CATIA, QA, CNC & CMM Programmer

RE: How to create a gage point on a taper, on a drawing?

(OP)
Got it.  Thanks!

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