How to create a curve without a CAD model

[[HE...]]

Hello everyone, I don't have much experience with PCM and I can't adjust the curve values to measure a 0.004 surface profile. I've attached a Excel and a reference image. I can't seem to create the curve correctly; it's not respecting the formula values. I hope you can help me edit it properly.

Regards.

 

Contours.xls

[[HE...]]

Sorry, I forgot to attach the image of the feature.....

[[Ma...]]

Do you want to measure that "R" only or additional 14° line and the other line tangential to that "R"?

I would ignore that formula and go straight to definition of basic features, like circle and lines. Define correct strategy. Now just recall those features into new curve and voila - you have nominals for a curve.

One mention for that - to have correct nominals you have to do recall measured points on features without measured points - that will recall nominal points from strategy, otherwise you will create nominals from measured points.

[[HE...]]

Thanks Martin Jánský for the support, I hadn't tried to obtain the measurement the way you described it to me, it was very practical. I had some issues with the probing vectors; when recalling the points of the elements not measured in the strategy, it wasn't performing the scan correctly with the physical part. I just adjusted the vectors and got my result.

[[Ma...]]

One thing to note. Correct nominals from a circle can be taken only if that circle element has starting angle "0" and strategy has correct starting angle. Taking out from CAD can result in non zero angle in element, but "0" in strategy start angle.

Example: element's starting angle will be 180° so recalled nominals will be rotated by 180° than true points - so you would have to rotate nominals i a curve to get correct ones.
If you understand me 🙂

[[HE...]]

Of course, now I understand. With this information, it's much easier to configure the curve

👍