I have gone through the task of rotating bone pivots in order to achieve the state described here
"...There are two general points to remember here,
1) You should be able to select every joint in a chain and have them bend in the same direction when you rotate in a single axis.
2) Behaviours should correspond across different limbs in the same rig, so for example rotation in X should rotate the arms forwards, legs forwards and spine forwards - consistency of rotation behaviour is the aim."
but now that my arms behave this way, their joints seem a bit odd -namely that X (down the bone) and Z (forward bend) is flipped on the left arm.
My question is: is this normal?
i ask because I'm about to implement an attachment system. It will need to communicate XYZ offsets, and I don't know if the flipped left arm axes will be trouble...
I realize that it's a Maya tutorial, but I assume this consistent axis set up is a general principle...