@Eric That was what I was trying to achieve, the turkey on a spit 2+1 using an unrolled version of my vase. As you can see, despite using the Y to A post my g-code still has Y moves, and only references A once at the start of the file to zero it:
(PARALLEL1)
M5
T41 M6
S18000 M3
G54
G0 A0.
G0 X9.8532 Y-0.2305
G43 Z5.2259 H41
Z2.3372
I know you can do this the “right” way by buying the multi-axis extension for fusion or by using the fourth axis as an indexer which seems to post just fine after enabling the A axis in the default fusion post, although I haven’t tried it on my machine. Not sure why the g-code still has y-axis moves, they should be A axis moves if the post truly translates y axis moves into a-axis moves. I may be missing something fundamental, I am new to fourth axis g-code.