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If you take a syncro drive robot that can move perfecly in 4 directions(Fwd,Rev,Left,Right) and attach rotation sensors to each axle that the wheels are on, then you can measure the distance traveled by ecah wheel. With a litttle knowledge of how (...) (25 years ago, 1-Oct-99, to lugnet.robotics)
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| | Re: Position Finding/Mapping
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(...) I assume you're talking about the type of robot platform shown here: (URL) four wheels travel the same amount regardless what direction the robot is moving. So, you won't get much from using multiple rotation sensors except to help average out (...) (25 years ago, 2-Oct-99, to lugnet.robotics)
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| | Re: Position Finding/Mapping
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Does anyone have any ideas on which platform is best? I have to buy parts for any of the ones listed on the Internals page(I didn't think about that). Can anyone say which ones are best? Also does anyone know of any other syncro drives on the (...) (25 years ago, 2-Oct-99, to lugnet.robotics)
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| | Re: Position Finding/Mapping
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(...) Take a lesson from NASA and never use feet for anything important. <g> Using metric also means you don't need floating point, if you do things right. Erik Walthinsen <omega@cse.ogi.edu> - Staff Programmer @ OGI Quasar project - (URL) (...) (25 years ago, 2-Oct-99, to lugnet.robotics)
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| | Re: Position Finding/Mapping
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Okay. Here is an update. I decided on a platform like the one on this page. Synchro Drive I have bought and finally recieved all the parts nessesary. It is going to use 2 rotation sensors to measure distance, and the angle of the wheels relative to (...) (25 years ago, 17-Oct-99, to lugnet.robotics)
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| | Re: Position Finding/Mapping Update
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I have now constructed the robot and am beginning to program it. I have no way of getting pictures(yet), so I will get them when I can. If you want more information on the design of the robot, email me at gombos@ne.infi.net Andy (25 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: Position Finding/Mapping Update
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(...) Why don't you post the info here? Seems like the best place for it! (25 years ago, 22-Oct-99, to lugnet.robotics)
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| | Re: Position Finding/Mapping Description
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Okay. The base is a lot like the last picture on the Synchro Drive page. STEERING Then there are the beams that hold the axles that hold the 8t gears that link the turntables together. One axle is just one of those half friction pin/half axle (...) (25 years ago, 23-Oct-99, to lugnet.robotics)
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| | Re: Position Finding/Mapping Description
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(...) I just dissasembled the 3 wheel configuration, and built a four wheel one with another turntable I found. It is now a four wheeler. Balance is solved, with no counterweight, and I think that it will steer a lot straighter too. The turntables (...) (25 years ago, 23-Oct-99, to lugnet.robotics)
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