High Torque Nema 11 DC Stepper Motor NEMA 11 Frame Size 28 x 28mm 1.8°Step Angle

NEMA 11 Frame Size(28 x 28mm)
1.8° Step Angle
High Torque - Up to 17 oz-in
High Step Accuracy and Resolution
Low Vibration and Noise
DC Stepper Motor
Can be Customized for
-Winding Current
-Shaft Options
-Cables and Connectors
Typical Applications: Inject printers, Analytical and Medical Instruments, Textile Equipment, Embroidery Machine, Precision Telescope Positioning Systems, High Speed Dome Camera and Robotics
cnc stepper motor/step motor/stepper motor/NEMA 11 28 x 28mm stepping motor

The 11HS Series DC Stepper Motor have bigger size than Nema 8HS DC Stepper Motor, but have much bigger torque than the latter. These DC Stepper Motor were designed to offer the highest possible torque while minimizing vibration and audible noise. Unlike DC motors, the 11HS series DC Stepper Motor already has a very high torque at low speed and often gears are not required which leads to considerably more economical drive solutions. The standard 4 lead wire DC Stepper Motor can be connected to allow the flexibility for your application. OSM can also customize the winding to perfectly match your voltage, current, and maximum operating speed.

Need help choosing the right Stepper Motor? Read this: Uni-polar vs Bi-polar or learn more about Stepper Motor Basics.

Question on Closed loop control on cnc machine

So I saw a video showing rather amazing control of the brushless motors via encoder. Great job on this esc! I'm glad I decided to google 'open source esc' today!



My question is pretty simple. I made a cnc machine with lead screws and nema 34 closed-loop stepper motors/drivers. They are slow. I'd love to replace them with rc brushless motors and VESC's with encoders for much higher speed milling.

However, my electronics, and most cnc electronics, send out STEP/DIR pulses. DIR is held high or low for forward/backwards, and step is move an increment. Is there a way to read this in VESC or do I need to fashion some kind of adapter board to convert signals?


Also, in the video, I never saw what happened if you commanded more then 360 degrees of motion. Is there a value overflow? Or can the degree count keep going up and down and into the negatives or positives forever?

This is the machine, by the way, but I have a feeling that if this works I might try to make my own lower power version of the vesc and make brushless servo motor drives for all of my stepper devices (3d printer, laser cutter, etc) However, annoyingly, I dont seem to have any pictures of the new revision. It no longer uses the big bldc motor as a spindle, it now uses a 3 phase 1.5kw vfd driven water cooled spindle.