 | | Casters
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| Can anyone explain to me why front-mounted casters, with the powered wheels toward the back of the robot (see photo at www.wordsmithdigital...iaries.htm ), stay in alignment better than rear-mounted casters with the wheels in front? I can't quite (...) (24 years ago, 22-Aug-00, to lugnet.robotics)
| | | | | Re: Casters
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| It might be thus: When the motors engage, there's some torque in the body that would tend to lift the nose of the vehicle up (think of a dragster, how it pops a wheelie under acceleration). Thus, when under acceleration, the front of the vehicle is (...) (24 years ago, 22-Aug-00, to lugnet.robotics)
| | | | | Re: Casters
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| (...) When the vehicle is rolling towards the caster, the caster is much closer to the drive wheels, and they have a lot more leverage against the caster to position it where they want. When it's rolling away from the caster, the caster is so much (...) (24 years ago, 22-Aug-00, to lugnet.robotics)
| | | | | Re: Casters
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| (...) Yes, that's my impression too. From the pictures it seems that the caster joint is made from a single plate with holes, which creates a lot of friction because the axle cants(?) under weight. A better design would be to use two plates at some (...) (24 years ago, 23-Aug-00, to lugnet.robotics)
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