Robots

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Permalink Reply by Danny on October 31, 2011 at 2:31pm

A robot arm can move about in various ways. One popular way is by using a series of servos attached to a controller of some kind that synchronize their movements..

 

Here is an example of on on DIYbin.com

 

http://www.diybin.com/products/DFRobot-5-DOF-Robotic-Arm.html

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Permalink Reply by Gursimran Singh Bains on October 31, 2011 at 3:54pm

But don't u still need a gearbox to change the speed or to make the arm move ?

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Permalink Reply by Danny on October 31, 2011 at 4:00pm

No - the servo's are what move the arm about.. there are many ways to make a robot arm here are just a few

 

1. servos - the servos are the motors and gearbox in a sense all in one

2. muscle wire

3. air muscle

4. linear actuators (piston like)

5. air (pressurized system)

 

These are just a few of the ways I have seen arm movements. I am sure there could be more. For larger arms yes there could be a gear box of sorts for greater forces or for faster motion. But if you are just building a small arm for experimentation I would say keep it simple and use servo's as shown in the link provided on the previous post.

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