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@Alaa Nwesry Not that I am aware. This task is much easier when handled outside the software with an automated script. Do you have any experience scripting?

How that part looks like? Curve in one plane or it goes in all three axis? I would bet that secondary alignment is somewhat rotated and moved. If you want to have less red points, then increase search distance on a curve. At least you will be able to see what is scanned.

I've had a few parts with this scenario. I used an RPS alignment. I measured the two pads at the same height as planes/recalled them into one plane/recalled the one plane as a point. Next, I measured the other two pads as planes and recalled them into points. I then plugged them into the RPS alignment along with my datum B and C features.

yes, it is possible to set limits on a global or per stylus system basis - https://portal.zeiss.com/knowledge-base?id=3366633

Bump. Still running into this issue 😞 Has anyone seen this before?

you can fill out this form for training sign up assistance! - https://forms.office.com/pages/responsepage.aspx?id=RCIEKFG71kyANHd2-jcD6CVrq-2wTgpPoBq-ltyu5ypUMTgwSDhNSlA4TDQ0TEJQRjRCREVCVDZOWS4u

Does Observer require a dashboard, third-party software? I pull the ProgramDurationRecord.xml file into excel and chart it, it's a PITA.

Yeah, the name Loose probably needs to change - lol. Two big changes from 2023/2024 to 2025 are the fact that we can do FFS inside of the new Profile, and now you can create an Alignment from the DRF that is created inside a GD&T characteristic. The new GDT Profile in 2025+ will have virtually all of the tools that you need, you can even do unequally disposed profile or UZ profiles (the software automatically sets it up based on which standard you are using).

I'm in business now gentlemen. The tips in this thread really got me going on way more than just planes. All was very much appreciated. Matching my cmm and granite checks.

I *believe* what I did last time I encountered this situation was to: Scan each pad, and create a Geometry Best Fit Alignment from them Create Maximum Coordinates for each Datum Pad (relative to the Geometry Best Fit Alignment) Offset two of those Maximum Coordinates by the nominal distance to the other two Create a Plane, using the two Maximum Coordinates & two Offset Points

Awesome, thank you. I hope there are continued improvements to it in next release. OMG Zeiss is now on the A.I. Train ...

Here is a link to start your 60-day trial of CMMobserver - https://www.zeiss.com/metrology/us/c/zeiss-cmmobserver.html?vaURL=www.zeiss.com/cmmobserver

Looks like Common Datum solves my alignment question about bore patterns.

I'm glad your issue seems to be resolved Jason. For anyone coming to this forum in the future, here's a Knowledge Baset Article on the topic - https://portal.zeiss.com/knowledge-base?id=454224

Thank you, Zak.

Having done this numerous times throughout the years I've been using these systems, 100% beneficial to the programmer. Great idea.

Check it out! https://portal.zeiss.com/academy/video-tube/imt/87496/Cee6NyY5M3YMmcbBrbzdSv This video provides an overview of the New GD&T Engine in CALYPSO, including availability by version, setting the applied standard (ISO vs. ASME), and key user interface enhancements. Additionally, a variety of application use cases and new function highlights are also illustrated to demonstrate the power and capabilities of the New GD&T Engine library.

We have a Zeiss ACURA CMM that has started shutting the drives off for no reason. We have 3 CMM'S in the lab attached to the same air supply but this is the only one giving us a issue. Looking for ideas before I call support. Thanks

Thank you, Richard, You're always very helpful. I really appreciate it! Something about checking "Loose" makes me feel uneasy in measurement software. lol I'm measuring some fairly tight profiles and am trying to coordinate with outside vendors on results, so I'm really trying to make sure I'm doing things as accurately as possible. Does Calypso 2025 have the same behavior in the GDT profile? I want upgrade but am holding off as there seems to be some bugs still being worked out in 2025.

I would generally prefer to use the standard geometry if I can - mainly because I can filter/outlier elimination if needed. You can use an alignment inside of the GD&T engine, but you have to switch over to "Loose".

One more link from our side 🙂 How to Evaluate the Distance Between Planes?

Hello smart people! I'm trying to get up to speed on the new GD&T engine and profile characteristics. I have a couple of questions... 1) I get different results if I use the feature itself (a cone in this case) as opposed to using a freeform surface created from the cone in the GDT profile characteristic. Which is the correct way to inspect profile? 2) It looks like you can't use an alignment in the GDT profile characteristic. For example, I used to use a best fit alignment created from a bore pattern in my profile characteristic to use a hole pattern as a tertiary datum. How would I do that in the GDT profile characteristic? Thanks as always for your help! BTW... I'm using Calypso 2024

I would not follow the instructions of that YouTube video for a Plane to Plane distance. The Projected Point Distance is incorrectly built as the Point being reference is not an actual measured point/value (you can see this by looking at the funny looking man ) In addition, if you open up the actual distance that is created, you will see that it is not referencing the actual Plane. For a standard Plane to Plane, you would utilize the Linear Distance tool, and then select the two surfaces (this would be similar to constructing a Symmetry Plane inside of Calypso - great for the ability to measure the Envelope condition, and also be used for MMC/LMC if needed) . Unfortunately this will not work if the Planes face the same direction (step heights). In those cases, you would most likely use the Project Point Distance, but for one of the Planes, you will need to either just measure that surface as a Point, or a Fitting Point (average of the entire surface). LCS is essentially like creating an alignment inside of Calypso, and these are very useful if you need the nominal location to change to where that new coordinate system would be located/oriented. Datum Systems are what you will need to construct for any GD&T. Both LCS and Datum Systems can be used for global alignments (Main Alignments - By Coordinate Systems) - great for viewing Surface Comparisons to datum alignments. No you do not need to convert the mesh to a cad to perform evaluations without a model. Instead of defining nominal geometry, you just hop straight into things like the fitting element. So say for a Plane, you wouldn't use Construct - Plane - Auto Plane; you would use Construct - Plane - Fitting Plane. As for the Calypso questions, yes, but very rarely anymore. It's great if I have a legacy program written in Calypso, and I haven't re-wrote it inside of Inspect (or also great for testing correlation between the two).

Well - in Inspect you can measure distance of planes only if they are opposing via symmetry plane and GD&T independant. But for measuring distance as depth i am using kartesian method. I use selected points on model via Fitted point, right click on nominal plane and select restore points. This will make center point from plane ( honestly i don't know how to obtain exact center of any plane ) Now measure projected distance. Just report ordinary distance without axis definition. Now the hard part of a question. If you don't have a cad model, then you have to make your elements via selection on mesh - this will create actual element. Now just show i-Inspect -> Dimensions -> Copy as nominal element. Now this way you can make alignment. In treeview you can right click on that alignment system and select "Use as Local alignment" - it will correct XYZ cube on left bottom corner. And if you want you can now make nominal elements with drawing exact dimensions - but instead selecting fitting element you can use existing actual element ( "link existing ... element" )

Hi Chad, plane to plane: Global Datum system vs local coordinate system: I never thought to much about this honestly, but this is how i use it and it works: Global Datum system is for aligning the mesh to the cad and the local coordenate systems are for gd&t stuff. You can evaluate a mesh without a CAD. Of course with some limitations. https://www.youtube.com/watch?v=Dt3O6q0dNRc&t=187s