Oyster xy motor issues 

great clip. my oyster lifted from rest but wouldn`t rotate so of the roof (MH) into the shed & into parts! I found one of the micro-switches trip was missing! (so made one) & your video was more than helpful Thanks

Not of immediate use to me but a brilliant, interesting, and lucid explanation.

If the X motor is out of sinc can it be rotated manually to the parked position to reset the dish?

How did you line the top (horizontal) y motor up?