Question1: I accepted to have a rocking WW2.0 now,lol. It rocks a little when it gets to the home position because the idler wheel on passenger side is few millimetre above the rail(so not touching the rail as explained above). No issues so far, we washed almost 100 cars and no error. Just one thing, sometimes the home prox sensor doesn't sense the metal bar because its not close enough ( which is due to the wheel being few mills up). I don't want to make the prox sensor closer that what it is because then it might hit the metal bar. when the prox sensor doesn't detect the metal, the machine goes to the end of the track and hits the block at the end, is that damaging to the machine? have you ever tried to make that metal thing longer so the machine detects it earlier?
Question2: Going back to the original issue, if I want to fix this problem(rocking machine), I need to understand why the driver side drive motor stops at a certain location while on the Slow Gantry Speed option, it also makes noise when it goes past that point. When its on normal speed it pauses a bit on the same location but it will go past it because it has enough initial speed.