We have been looking at using a NEMA 34 motor… What NEMA 34 motor meets the following specifications :::
- Dual Shaft
- 24VDC
- 10Amps MAX
- High Torque
- 10Nm (the higher the better)
- Maximum Weight 12 LBS
- Keyed (Not a Requirement)
We will be using driver 36v8.
Thank you for sharing your wisdom. 
The stated specifications don’t make much sense and to some extent are contradictory. Motor torque is proportional to current draw, so you can’t arbitrarily choose both.
Motor power supply voltage is not terribly important for low impedance steppers, more for speed of step response and system design.
The minimum values of the two most important electromechanical requirements, the torque and power output (torque x shaft angular velocity) required, are determined by the mechanical end of the application, so start from there and state those parameters.
Hello.
As Jim indicated, it is hard to make a specific recommendation based on the criteria you listed. However, it is also apparent that none of our stepper motors will meet your requirements, and unfortunately, we do not have any suggestions for where you might look for a motor that does.
- Patrick
This is my first stepper motor project. So please paytion with me. Any and all suggestions are welcomed.
Step motors have radically different behavior than brushed DC motors and as a result, have correspondingly different applications.
So, you should start your journey with a small, low power motor and learn the basics of steppers, drivers, stepper power supplies and programming techniques. What you learn in this phase will be directly applicable to high power motors.
Fortunately, Pololu has an excellent selection of step motors and drivers, and there are plenty of beginner tutorials on line. I suggest to watch a few on Youtube before deciding on a particular project.
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