Profile

[[Me...]]

What is the best method to measure Profile without using 2D or 3D Curve?

I do not believe I have Form...

[[Cl...]]

Surface, or line?

Surface profile will allow you to evaluate 3d features, cone, cylinder, plane, sphere, etc.

[[Me...]]

That's kind of a broad question. Space Points work very well and are pretty versatile.

[[Me...]]

I was just wondering if there is a method to combine Planes & Cylinders for surface Profile, preferably using points.

I use Space Points, is there a way to combine them into a Profile callout?

Is a Free Form Surface a good method for Surface Profile?

[[Me...]]

I don't think you can directly in the Profile characteristic without curve or freeform. You can get the maximum and minimum results of the set of points and use a result element to calculate the profile.

[[Th...]]

To measure a profile without the curve license you can use, for instance, 2d-lines or circles. You have to pay attention on the speed, it should be like a contourograph, with max. 3 mm/sec and many, many points.

Once I had a profile to measure which had five different radii in a row. I took a 2d-line and went with 1 mm/sec plus 5 mm more on both sides - as we do on a contourograph. After that I used five circle elements and recalled the feature points I needed from this super-element. Then I masked manually the points I didn't like (this is also sometimes better than a recall but takes more effort - but you will reach your destination).

Unfortunately, this way takes very much time to finish and you will have approximately three times more elements (because of the recalls) than with curve license. On the other hand, it could be cheaper than a purchase if you do it less than ten times a year.

I did my best to describe the way it works, this is a very difficult area and last time it was also not easy to describe it in German... 😉

[[To...]]

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How do you calculate the profile using lines or circles? I assume you're not using Line Profile as you cannot select anything but curves.

[[Th...]]

You are meaning how I am able to make curves without curves, do you? Sorry, I took some time to translate it for me.

As I wrote above, I used - until I got the curve license - one very long line at very low speed. Just not to produce a collision. The speed is most important at this point. After the successful driven way the line element will have an awful Form and Sigma, above 2 mm. This is the base for the following recalls with other elements such as circle.
As you can see, I startet on the left and went to the right. Calypso will not crash as you don't go with insane speeds above max. 2 mm/sec. But it could be that a VAST Gold is required.
By the way, the picture is 1:1 !!

[[To...]]

No, I meant, how do you calculate the profile result from a line or circle?

[[Th...]]

Dear Tom, please excuse, I think my english is too worse to understand what you mean.
All industry-specific english I learnt with this forum.

I hope this is now the correct explanation:

1. After the profile I got one big element with an awful Sigma.
2. I made one new element in which I recalled the whole profile.
3. Then, I made the first part of selecting with manual filtering. Try to select only the part you need for calculating the final element.
4. Now, I took a second new element which recalls all points from the element before (3.). They should be now lesser than in the beginning.
5. And again, manual filtering is required. This last element, which is a "profile-filtered-filter-element" can be calculated as, for instance, a radius.

If you did it some times, you will need circa 6-8 minutes to do this. For the first time you will need up to half an hour.
Yes, I know, it is very difficult to do but it is worth it, if you do not have the curve license.

Oh, I nearly forgot to tell: the profile should not be as wide as the known ± 2 mm of the machine range in avoiding collisions!

[[mo...]]

Hello everyone,

Does someone know how calypso zeiss calculates the sigma and the Form of each measured Feature. Is there any documenation about that ?

Thx