arm

Help & Support Robot Parts
1

I am designing a full size humanoid arm to be mounted as a shoulder unit. I wanted to use this product to serve as the shoulder joint.
12V, 2.8A, 3333 oz-in NEMA-23 Bipolar Stepper Motor

robotshop.com/en/12v-28a-333 … motor.html

powered by this motor controller
PhidgetStepper Bipolar Stepper Motor Controller
robotshop.com/en/phidgetstep … #reviewBox

Good Match?

Arduino Compatible?

Can you recommend an appropriate encoder for the back end of the stepper?

2

You need to make some preliminary calculations. We suggest starting with worst case (easiest to calculate):
robotshop.com/blog/en/robot- … orial-7152
The rear shaft is 3.9mm. We do not have a specific model of encoder which is intended to fit that shaft, but you might find something you can adapt here:
robotshop.com/en/encoder-disks.html
Note that we have not heard of many people adding encoders to stepper motors as their steps should be absolute.