Wiring Diagram check

[eurikain]

Your not paying attention enough "G" Read what's been wrote again and you'll see the answer to that question.!!

Sorry, I wrote my reply before seeing what JAZZ wrote :) Plus, it's not that I'm not paying attention, I just want to make sure to understand properly. You're going to end up thinking I'm a bit mentally slow loooooooool.
So the answer is that there are two options:

1. homes on separate inputs
   +: possible to home all axes at the same time (while modifying the home script).
   -: you loose one input
2. homes on one input
   +: you save two inputs

No matter what, it's not necessary to use a relay for the homes.

See ? I'm a goooooooood student :) !