Question about Servos

[username-5]

Hi,

I am relatively new to robotics. How can I tell how powerful a servo is?

I need a servo that can receive a TTL signal and is powerful enough so I can rig up to a car steering wheel. If it’s possible, I would also like it to run off of 12 volts. This servo will have to be able to turn the car steering wheel completely. Not only must it turn the car steering wheel, it has to be reliable even when the car is parked (ever notice how a parked car’s steering wheel is more difficult to turn?).

Yes, I mean a full-size car.

Does anybody know a servo that can work for this? Your help is appreciated.

Thank you

[username-5]

However, like most servos it cannot turn 360 degrees while keeping the positional feedback. It works at 12V and is very strong.

You need to look at its output torque to see it is is enough for your application.

If not, you will need to make your own servo system using a powerful gear-motor, a motor controller and an encoder.

Thanks for your response, Casmat. Your point about the 360 is very helpful… I suppose I will have to go to my original plan by using a scooter motor and motor controller.

Thank you!

[carlitos]

You might want to take a look at this servo: robotshop.com/ProductInfo.aspx?pc=RB-Ins-01

However, like most servos it cannot turn 360 degrees while keeping the positional feedback. It works at 12V and is very strong.

You need to look at its output torque to see it is is enough for your application.

If not, you will need to make your own servo system using a powerful gear-motor, a motor controller and an encoder.