Robotic Arm Motor Selection 

For driving stepper motors, I would highly recommend TMC drivers like TMC2209. These drivers can run the motors silently, have sensor-less homing feature and can run much higher current through them.

I saw you only have 3 videos. Really interesting I wish you would keep making them!!!!

keep up the amazing work dude very informative

wow amazing video you gave me so much insight about servo and strepper motors

Great video 👍

great explanation

awesome video, i really enjoyed it!

Big show 😉👏👏👏 great video !

Great video, cleared thing up, thank you!

Im actually making a robot arm for a school project! THX for your video!

good video

You saved me, thank you

Great man 💜💜💜

Subscribed 😉👍 👏👏👏

Keep going man!

Thoughts on using brushless DC motors? It seems like the benefits would be greater but cost would increase so Def not used for many diy robots.

That big DC motor with extra wires Those wires are for encoder it's very accurate if you know how to use them

Hanzhen harmonic drive gear , over 30 years experience , robot gear , joint gear reducer

It sounds like you’ve done a thorough comparison of different actuators for your robotic arm project. Here’s a brief summary of what you covered: 1. **DC Motors**: - **Pros**: Simple, low cost. - **Cons**: Difficult to control speed and acceleration accurately. Not precise enough for high-precision applications. 2. **Servo Motors**: - **Pros**: Includes a position feedback mechanism, decent torque. - **Cons**: Limited rotation range (typically 180 degrees), precision can be lacking, and not ideal for applications requiring more than 180 degrees of rotation. 3. **Stepper Motors**: - **Pros**: High precision with defined steps, better control over position and acceleration. - **Cons**: Lower torque compared to servo motors, requires additional components like drivers and possibly sensors for homing. For your robotic arm, you decided on **stepper motors**, specifically the NEMA 17, due to their precision and control capabilities, despite the need for additional components and lower torque. The plan to use a gearbox to increase torque is a good approach to address the torque limitation. You also mentioned future improvements, such as implementing smooth acceleration and deceleration to make the arm's movements less abrupt and more fluid. That’s a great next step to enhance the overall performance of the robotic arm.

😮❤

Have you considered BLDC motors? HDD uses this type of motor to spin the disk with high precision.

How far are you in the project?

The servo motor can be hacked to provide 360 rotation. If you take it apart you will notice little notches which mechanically limit rotation. Use a Dremel to grind down the limiters and bam! 360 rotation. 👌 You will learn these things over time.

I agrey with BlakeRobrt

Not sure about 180, most likely potentiometers can rotate 270 degrees

could you please provide more info about the nema 17 motor , is there a link i can read more about it , thank you