I've been rigging up a standard tank, one with rotating turret with a barrel that aims up and down independently of the turret.
The barrel is parented to the turret. I set up 2 aim constraints. One on X for the barrel, for aiming up and down and another constraint in Y for the turret. It seems to work generally, but the barrel and/or the turret seem to flip out in different quadrants of a test 360'. I've tried am the aim vectors attributes etc in the constraints but none work the whole way around.
Is there a small fix to this, or is there a better way to rig a turret up?