Alignment disoriented

[[Zo...]]

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BTW, I did zoom out, faaaaar out but cannot see any of the green arrows...

[[To...]]

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Try taking a point on the part and see if you can find it in the CAD window. If everything is right, you should see it on the model.

Also, go into the Stylus System Management, click on Geometry in the tree on the left. Check out the x and y values, they should be close to 0,0.

Screenshot 2023-03-02 151918.jpg

[[Zo...]]

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Close to zero on both axis

stylus point2.JPG

[[To...]]

Well, you've got me stumped. Especially because you couldn't find actual points on TOP plane. Just in case we missed a step. Open the TOP plane feature. Right click in CAD window, click on Show Actuals. Based on what we're seeing from your last point I asked you to take, we should see a group of green arrows on the part.

[[Zo...]]

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Tried it and I do not see the actuals on the point I just took

[[Ju...]]

Do you have the probing object visible, so you can see if it's where it should be in relation to the part?

[[Th...]]

Check your block edges and be sure it orient correctly. Sometimes when I forget to orient the CAD before programming, the axis movements would go wonky when I try to test run it. For example. the right side of the picture below would caused movements problem.

1212.png

[[No...]]

May I suggest the simplest possible test to check the actual orientation of the base alignment?

Position the stylus roughly above the intended BA origin and call CNC / Travel to nominal position...
The X/Y/Z values displayed already indicate if it's at the right spot. X/Y should be close to zero, Z should be positive. If Z is negative, the BA is flipped upside down.

Now turn the speed knob on the joystick box way down, increase the value of X by 200 mm or more and click on the button on the right. If the CMM now moves in +X parallel to the part, the orientation of the BA is ok. If it moves in -X, it's flipped around the Z axis.

I find this test extremely useful to quickly find out what has happened to the alignment. The "why" is then still up to you, but at least you know where to start. Trusting the CAD view can be deceptive.

[[Ow...]]

Reading thru 4 pages, I was thinking exactly what Thinh Tran suggested.
If it is flipped (and I bet it is) you could create a new base alignment using the same features and run a manual base alignment again but, MAKE SURE when you're manually probing the features of the planar rotation (of the base alignment) to do them in the correct order, i.e. when probing left hole, don’t take points in the right hole ect,ect.
However, you don’t have to create a new base alignment if you go to resources, utilities and scroll all the way to the bottom and select “set base alignment to zero”. If your base alignment is flipped when looking at the blocked edges of the clearance plane, this (“set base alignment to zero”) will correct that window as well.

[[Ow...]]

_

[[No...]]

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I slightly disagree with the sentence "the black circles should always be at the bottom". This is only true as long as the coordinate system of your part has +Z pointing upwards. But as you know, Calypso can measure parts in any orientation without modifying the CAD coordinate system as long as all styli fit the actual orientation of the part. So you can intentionally probe the BA in a way that CAD +Z points to CMM -Y. Then the black circles wouldn't be at the bottom anymore.

However, in the case we're discussing here, it's true: they should point downwards.