How to set origin point on a fixture

Maybe you might want to take a look at this thread as it might help.

From what I understand you’re trying to adapt the laser to the jig, but I think it’s easier if you adapt the jig to the laser, i.e. if you take your jig and set the target in this example at X=60 Y=40 add another target also integer to make it easier,

and fix the jig I think you’ll get what you want.
For repeatability, you can have a base that is fixed to the laser or rests on reference points (for example, a right-angled piece) with two shafts at the points of the targets and then just place all the jigs you make on top of that and everything will be fine.
You can also add 2 more targets to validate the alignment.

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