Syil SX3 BoB pinout .....help please.

[Greolt]

SX3 with three standard drivers as supplied with early Syil kit.

I wish to add a fourth driver, Gecko.

Can not figure out the output pins on the BoB, any help would be appreciated.

Greg

[neilw20]

Greg.
Here is the circuit...

[Greolt]

Thanks very much Neil

EDIT:

OK that did it. I now have full 4 axis.

No more swapping over the Y driver to use on the rotary axis.