2 Motors driven from one driver in parallel

[JAZZCNC]

If you really must go for two stepper motors driving the same axis I'd recommend you connect them in series.

He wants more torque so that would be a bad idea.! . . . Parallel will give him more torque higher up. Plus he will need far more volts to be any use and doubt these drives can handle enough to be of any use.?

[fozziebear40]

Thanks for the replies. I got extra driver boards. A motors at each end of belt. It is better anyway than trying to make an idler pulley to match the other end. (I know what I mean lol). Works great.

[boldford]

He wants more torque so that would be a bad idea.! . . . Parallel will give him more torque higher up. Plus he will need far more volts to be any use and doubt these drives can handle enough to be of any use.?

I think you may be forgetting that much of the current is being limited by the high impedance source created by the chopper circuit. Doubling the resistance of the motors will not necessarily reduce the current significantly.