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It seems all of my inventions have a right and a left motor used to guide the direction of a vehicle. I would be interested in having one motor drive and one motor steer. Has anyone been successful at creating this design? Sidenote: This seems to be (...) (25 years ago, 12-Apr-99, to lugnet.robotics)
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| | Re: Steering a robot
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I've built several steering robots, but the problem that I've had is that it doesn't provide a small enough steering radius to be useful with my projects. The robots that I have been building generally need to be able to turn on their axis. (...) -- (...) (25 years ago, 12-Apr-99, to lugnet.robotics)
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| | Re: Steering a robot
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(...) Perhaps a differential would work well with this. Place a differential between two wheels, and have one motor turn the entire differetial (moving the vehicle forward or backward), while the other motor only turns one of the halfshafts (...) (25 years ago, 12-Apr-99, to lugnet.robotics)
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| | Re: Steering a robot
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How about one motor in the front steering via a rack-and-pinion setup and another in the back providing drive for the vehicle (might be a littel strained on power depending on weight/size of the vehicle)? A front-wheel drive version would be (...) (25 years ago, 12-Apr-99, to lugnet.robotics)
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| | Re: Steering a robot
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(...) I have two designs that use separate steering and propulsion motors: (URL) (25 years ago, 12-Apr-99, to lugnet.robotics)
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| | Re: Steering a robot
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Thanks to everyone that responded. I do indeed have a differential setup on the rear wheels and a second differential to incorporate the power of two motors. The steering problem is that I don't know how to reset the steering wheels on the front of (...) (25 years ago, 12-Apr-99, to lugnet.robotics)
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| | Re: Steering a robot
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(...) On one of my robots I have a light sensor that I use the third motor to scan to the left and right. I use a single touch sensor and two cams such that it knows when it has reached either extreme. Using the Fwd(), Rev(), and Off() routines will (...) (25 years ago, 12-Apr-99, to lugnet.robotics)
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| | Re: Steering a robot
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(...) This is a good starting point for a gear system that uses one motor to drive both wheels, and another that adds and subtracts rotations from the wheels to produce turning. (URL) subject has been covered a lot in earlier messages, so it may be (...) (25 years ago, 12-Apr-99, to lugnet.robotics)
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| | Re: Steering a robot
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(...) One of my bots uses a sensos to center the steer. It turns the wheels right or left putting steering motor on for a while, and when it's time to center the wheels back it uses a sensor to check the central position. I also suggest you use a (...) (25 years ago, 13-Apr-99, to lugnet.robotics)
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