@Mark_16378 I do note that the nock is perpendicular to one of the arms, which means that one would line that arm up with the index vane to correctly align the nock. It'd probably help to mark that arm with a bit of paint or tape (or modify the stl to have that arm marked in some way (see image)). (edited)
Love it, but why doesn't the nock line up with one of the arms? It would help for aligning with the arrow spine.
@Mark_16378 I do note that the nock is perpendicular to one of the arms, which means that one would line that arm up with the index vane to correctly align the nock. It'd probably help to mark that arm with a bit of paint or tape (or modify the stl to have that arm marked in some way (see image)). (edited)