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Iterative alignment and using XactMeasure

Alright here is my problem/question.
I have a part where Datum -A- (Z axis) is not prismatic, however datum -B- (X axis) and -C- (Y axis) are.

I do not have much experience with Iterative alignments other than that I have been to the Level 2 Hexagon class (Just don't use them or have the need too).

My thoughts were, this is a good time, to try an Iterative alignment.
I believe I have that part of the program correct:
I created 6 auto vector points on top (Datum -A-),
then 5 auto vector points on left side (Datum -B-)
then finally 5 auto vector points on the front of the part (Datum -C-).

When I create the Iterative alignment I pick top 6 points as level (Datum -A-),
5 points on left rotate (Datum -B-),
then 5 points on front as origin (Datum -C-).

After completing this Iterative alignment my trihedron doesn't move from before the alignment.
So I constructed planes out of the five points for datum -B- and -C- respectively.
I then origin my "X" to Datum -B- and my "Y" to datum -C-.
How do I origin my "Z", and how do I assign my datum -A- for exact measure? Where did I go wrong? Please any help would be greatly appreciated.
Parents
  • If you transform the origin to be where the origin of ABC is, then when you run the iterative alignment, it will be in the ABC datum reference frame.


    As stated above Datum "A" is not a flat surface, nor is it an auto feature like a plane, cylinder, sphere, etc. I have no way to origin on datum "A". If it was that easy I would not be on here.
Reply
  • If you transform the origin to be where the origin of ABC is, then when you run the iterative alignment, it will be in the ABC datum reference frame.


    As stated above Datum "A" is not a flat surface, nor is it an auto feature like a plane, cylinder, sphere, etc. I have no way to origin on datum "A". If it was that easy I would not be on here.
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