Profile-Unequal Distribution, reporting basic of the distribution.

[[Ri...]]

I have a situation where the customer wants me to report the unequal distribution value as shown on the blueprint.
See attached image.
The customer doesn't have FreeForm or Curve and they are on v6.08x (2015).
Is it possible to extract that value from a Profile?

Profile-Unequal Distribution.JPG

[[Da...]]

In the profile window there is a drop down window which has an option for Bilateral with unequal distribution - one result. Will this not work?

[[Ri...]]

I'm thinking to use two results, makes me believe I might be able to pull data from either side of the distribution.
In theory (Best guess).

[[Je...]]

[[Ri...]]

That's how its setup.
Now how do I report what the .010 Basic is?

[[Ro...]]

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I don't think you can, because unequal distribution recenters the nominal line to be in the center of the tolerance zone.
On an unequal distribution like yours, 040 with 010 being to the inside the tolerance zone will recenter .010 outside and +/-.020 from there.
What you could do is cheat and place a point on the surface, and give them an X Y or Z location compared to the cad model.
Say the part is laying curve side up, take a point right on top of the arc and give it a +030 -010 tolerance to whatever the cad model says it should be at that point.
This will not be a true representation because it will only be data from 1 point on a surface, but it will be something.
hopefully your form isn't junk.

dgfdgfdgfhjdgfdgfkj.PNG

[[Je...]]

I understand you want to report a value against the basic. Have you considered using the plot with min/max values from the plot displayed?

The other option is to use the two-result method. Could create it as a ref characteristic for value reporting only.

Robertos method would work as well and you could use several points with values and use a min/max result characteristic to report highest deviation if desired.

Personally, with the info presented, I would use the graphic plot to communicate the full data set without knowing exactly what your requirement is. I understand that may not be applicable for your case.

[[Ri...]]

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Red Font
I was or am hoping I can extract the Min and or Max values and report that as a basic, using a Result Element.

Blue Font
I have a plan in place to use alignments and Space Points, its time consuming and I don't have that much time. (There are a lot of features using this profile.)

Green Font
I do not think the customer is willing to utilize the graphic.

[[Ma...]]

I think there is option to have unequal and min/max

[[Je...]]

Does this satisfy your customers requirement for your output?

Unequal Distribution with 2 results;
Two different methods for Result element to get the .010 value.

[[Ri...]]

@Jeffrey Penrod
It would, Butt weight, there's more. 😱
Is this Curve and or Freeform dependent? (Customer doesn't have either of these options)
Both PCM strings "getMinActual" and 'MinDev" when used are "Not Defined".

Calypso v7.2.12 (2021)

p.s.
Thank you for your time.

[[Ma...]]

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Does they have general surface? It's the only option - unless they can convert that to basic elements.
If they can not use Bilateral with unequal distribution with 2 results, then they can not get this

getMaxActual("Profile").actual

Update - i can not use it too - says not defined.

[[Ja...]]

Can't you just add a second profile using bilateral, equal distribution, two results to give them the deviation from CAD nominal.

[[Ri...]]

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Please define "Convert to basic elements".

[[Ma...]]

If they can do part of cylinder, plane or torus, then they can do scans and evaluate profile for all elements - then just use MAX and MIN to report the worst.

But this won't work if they don't have fully restrained alignment - aka bestfit.

[[Ri...]]

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Unfortunately this program was written by someone else, nearly every feature is on the Base Alignment and no Best Fit at all.

[[Ma...]]

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What I meant was - if you have A|B|C then it's ok, but if you need some sort of bestfit, then it can not be done by basic elements.

[[Je...]]

Rick,

Ok, so it appears I am trying to report a characteristic for a feature I am unclear on its nature and means of creation. I'd ask that we start from the beginning essentially. I know what the print requires and what you trying to report (I think). Tell me what it is you have currently in the program to work with and I will help figure out what you can use and how.

[[Ri...]]

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Its not so much a characteristic of a feature, its the method used to describe the Profile.
Instead of creating a Profile such as:
Prof_.040U.010_A_B_C for an Unequal Distribution, the drafter/designer created:
Prof_.040_A_B_C and added a basic value of .010 indicating the direction of distribution.
My interpretation is the .010 (displayed as a Basic) is part of the tolerance for the Profile. The physical location of the feature is all that is needed.
Anyhow, the customer is going forward with a purchase early this coming year and including Curve/FreeForm.

[[Je...]]

Correct. The method displayed in your original post is the "old method" for definining an unequally disposed Profile (what "old method" version that is escapes me) but the updated versions of GDT to ASME 14.5-2009 would have that dimensioned as "Prof _0.040 U 0.030 -ABC-". The basic 0.010 is purely for the tolerance and does not define the surface. (U value is amount of that tolerance that exists from nominal to MMC)

If I remember correctly, ISO would show it as Prof_0.040 U 0.10 -ABC- (U amount is how much center of tolerance is shifted towards MMC)

[[Ma...]]

I misread thread or I just don't get it - I thought there is another problem and here you are solving something which are basics of profile callout. I thought everyone knew that 😱

[[Ro...]]

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Report the .040 total profile as bilateral with 2 results. That should be +/-.020. Use a result element to subtract .010 from your MIN profile result to get the basic value.

[[Ma...]]

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Don't get it - clearly he have to use unequal - point for ASME - if he wants he can use two results, but with unequal

[[Wo...]]

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I thought so too, but it looks like the thing we are looking for is how much the profile deviates in each direction of unequally distributed profile.
Unfortunately, I have no idea how to do either, good luck though.

[[Ma...]]

I'll repost something - let there be light

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