Steering wheel adapter with buttons support for Logitech G27

I made this adapter for a friend in order to use his 330mm Simoni Racing Walker steering wheel and not lose original buttons in Logitech G27.

It fits aftermarket wheels with 70mm PCD like Momo wheels and others.

I'm not sure about buttons position using different steering wheels compared to his Simoni Racing, probably in some work and in some other don't.
Anyway, it's easy to remix in order to adapt it for other wheels.

For assembly instructions, you can refer my previous thing abou