can you drive a stepper with 2 drives

[jseiler]

I am curious if one can drive an 8 wire stepper with 2 drive channels be using each driver in half coil on the same motor? I envision connecting 1 drive to the a and b phases and another slaved driver to the c and d phases for double the current drive.

[neilw20]

Good way to demonstrate locked rotors.

[jseiler]

Why not?

[keebler303]

I think it might be possible. Neil is referring to the possibility that the two drives are not in sync with one another, if they are not, they will be fighting each other and you will have a "locked rotor". If you were to lose a step or turn the machine off and back on, you might get the drives in different states, you would then have to send a step pulse to one drive and not the other until they were in sync.

Possible, probably.
Worthwhile, questionable.

If you have the parts, try it out. You will either find it doesn't work, it fries your drives, or it works great and you can tell everyone how to do it.

Good luck
Matt

[cnclathew]

Hi guy, I have a cnc wood lathe project, and right know I have done all the mecanic stuff, I just need to buy the stepers motors and the drivers, but my main conser is the maybe I dont buy the correct step motor. I need some help, Im building something like this

YouTube - How Its Made - Baseball Bats

YouTube - How Its Made - Baseball Bats

As you can see the y axi have a saw as a cutter, so I have to put an electic motor on y axis, I guess the motor weight is around 25 lbs, so I need to now how many torque do I need for bout axis ( x, y)

Please advise I will apreciate