Umo E3d titan aero nema 17 slimline setup

[roald 2]

I have design a mount for my titan aero an attach it on the X Y bearings of my UMO it going pretty well but the motor turn the wrong direction after swapping some wires its even dont turn anymore. Im a little bit confused about the schematic the umo board have the 4 motor contacts a1 a2 b1 b2 and the stepper motor on the titan have 6 contacts a ? b a- ? b- anyone know howto connect these? And what are the contacts in the middle?

Edited August 23, 2017 by Guest

[neotko 1,417]

6 to 4 motor cable wire

Found this on google?