Hello, i'm just playing about with one of those cheap tb6560 4 axis driver boards from china,

nothings gone pop yet wich is good but also nothing is happening apart from buzzing from the motors

i was hoping one of you could give me your opinion on how these should be wired

the axis conections on the board are marked> a+ a- b+ b-

heres the diagram for the motorsClick image for larger version. 

Name:	nema 23 stepper data sheet.pdf 
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ID:	1356

i was trying to wire them up bi-polar parallel

cheers for any thoughts