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Ok ok, I'm not a total newbie to Legos or Mindstorms! I do know that it's possible to connect 2 motors to one output on each side (A and C). The only thing with doing that though is that each 2 motors on either side will move the same! What can you (...) (25 years ago, 9-Jul-99, to lugnet.robotics)
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| | Re: Have 4 motors, need help!
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This Gantry Mill has four motors. Two are driving the gantry. (URL) <superpcer1@home.com> wrote in message news:FEMnKv.A6M@lugnet.com... (...) only (...) move (...) (25 years ago, 10-Jul-99, to lugnet.robotics)
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| | Am I missing something? (was: Re: Have 4 motors, need help!)
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From: Bob Fay <rfay@we.mediaone.net> (...) leaves three outputs for the other three motors. Not really a special solution. Isn't the problem really "how do I make the three outputs drive more than three motors (or whatever), each in an independent (...) (25 years ago, 10-Jul-99, to lugnet.robotics)
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| | Re: Have 4 motors, need help!
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(...) Power, power, and more power!! or Speed, speed, and more speed!! Just 2-3 days ago I saw on a web site a small pic of two motors driving the same gear, to provide double power/speed. I wish I could find this page again because I would like to (...) (25 years ago, 10-Jul-99, to lugnet.robotics)
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| | Re: Have 4 motors, need help!
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This is an excerpt from an "almost" real-life experience: Lalala, look mom! My robot has four motors! Two on each side to power the tank treads. Is this cool or what!? *All of a sudden, the robot makes a strange noise, emmits some smoke, and stops* (...) (25 years ago, 10-Jul-99, to lugnet.robotics)
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| | Re: motors
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Hi, I found that one of my Mindstorms motors is a bit stronger than the other. The robot should go forward, but slightly diverts right. When I exchange the motors and nothing else, it diverts to the left. Does anybody else have similar experiece? (...) (25 years ago, 10-Jul-99, to lugnet.robotics)
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| | Re: Have 4 motors, need help!
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Hallo Alan, Perhaps you saw it at (URL) There is a picture with two motors driving one output. Ralf (...) (25 years ago, 11-Jul-99, to lugnet.robotics)
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| | Re: motors
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(...) Unfortunately, almost all of the motors are slightly uneven. Look up "adder/subtracter" or go back through the list to find mechanical solutions which allow your robot to go in a straight line regardless. The archives are at (...) (25 years ago, 12-Jul-99, to lugnet.robotics)
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| | Re: Am I missing something? (was: Re: Have 4 motors, need help!)
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(...) Is there such a hardware/construction FAQ anywhere? I know there was an attempt at such a thing quite some time ago by the lugnet folks, but I have no idea if that ever got off the ground or not. I don't really have time to work on one right (...) (25 years ago, 12-Jul-99, to lugnet.robotics)
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| | Re: motors
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(...) Out of the 6 motors that I own none of them rotate at the same speed. (URL) has some mechanical solutions (using an adder/subtractor) for solving this problem. Note that for many types of robots (line followers, etc) it really isn't a problem, (...) (25 years ago, 12-Jul-99, to lugnet.robotics)
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| | Re: Have 4 motors, need help!
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(...) Yes, that is where I saw it. It was when I visited that site to download the NQC Command Center, which I have found very useful. (...) again (...) of (...) (25 years ago, 12-Jul-99, to lugnet.robotics)
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| | Re: motors
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(...) That's just how mechanical parts are - all parts are slightly different. I've used a differential between the two motors, and then measured the position difference with a rotation sensor. In NQC I just make one of the two motors "float" when (...) (25 years ago, 18-Jul-99, to lugnet.robotics)
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