Z Axis 2 Parallel Motors Synchronization

jaydevdave

The same motors run when connected on X and Y axis respectively and that too with high speed of 100mm per second.

dc42

What is the maximum speed at which my printer can run, having stepper motors (1.5A current), torque 5.5kg/cm2 and using external power supply 24V?

See the link that I posted in my previous reply for how to calculate this.

dc42

@jaydevdave:

Duet's X Y Z Motor Drivers and its capacity is same or different ?

All the same.

jaydevdave

The same motors run when connected on X and Y axis respectively and that too with high speed of 100mm per second. why so?

dc42

@jaydevdave:

The same motors run when connected on X and Y axis respectively and that too with high speed of 100mm per second.

The maximum speed achievable is lower when you have two motors wired in series. But why are you trying to run your Z axis at 100mm/sec? Z doesn't need to move fast.

jaydevdave

We having two Y motors which have been swapped with the Z axis. So Two Y motors being connected at the Z axis and we need the speed of 100mm/sec.
Stepper motors Rating 1.5A
Power supply 24V.
How can it be achieved?

dc42

Try connecting them in parallel to just 1 of the connectors instead of in series using both connectors, and setting the current to 2A.

EDIT: alternatively, if you have any spare motor driver outputs left, connect them to separate outputs, use M584 to tell the firmware to drive both together, and use the existing current setting.

jaydevdave

Driving both the motors from a single connection(parallel) instead of two is safe? I hope it won't burn out the driver right?

jaydevdave

We having two Y motors which have been swapped with the Z axis. So Two Y motors being connected at the Z axis and we need the speed of 100mm/sec.
Tried what dc42 mentioned in the previous comments. We do not have extra driver nor it is working in parallel connection.
Should we increase the power supply or should I use 3A rated stepper motors?

Current motor having rating of 1.5A
Torque 5.5kg/cm2
Power supply 24V.

How to do it?

dc42

Like I said, connect them in parallel to a single stepper motor output, and try 2A current. The drivers are current-limited so it is safe.

What is the steps/mm for that axis?

jaydevdave

Alright

jaydevdave

Can we set motor current to 3A in config ?

elmoret

@jaydevdave:

Can we set motor current to 3A in config ?

Have you read the documentation?

https://www.duet3d.com/wiki/Choosing_stepper_motors