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I have been working on building an automatic transmission for quite some time but have yet to come up with satisfactory solutions. I am looking for additional ideas to try. What I consider to be an automatic transmission in this case is: [Drive (...) (25 years ago, 30-Nov-99, to lugnet.robotics)
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| | Re: Automatic Transmission
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Robert, Some time ago I built something using the gearbox-thingies from the 8880 super car. My vehicle only had two speeds though. But two speeds is quite enough for an electric motor, which operates well over a much wider range of rpm's than an (...) (25 years ago, 30-Nov-99, to lugnet.robotics)
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| | Re: Automatic Transmission
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From: "Robert Eddings" <webmake@bellsouth.net> (...) If you search both lugnet and rec.toys.lego (via (URL) you should find many discussions of this. As far as I can tell no one has come up with a satisfactory design which is purely mechanical and (...) (25 years ago, 30-Nov-99, to lugnet.robotics)
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| | Re: Automatic Transmission
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(...) I haven't built a transmission this way, but I have built a number of sliding worm gear mechanisms. I've found that you have to leave enough room between the drive gears so that the worm gear is only in contact with one at a time. (This is (...) (25 years ago, 30-Nov-99, to lugnet.robotics)
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| | Re: Automatic Transmission
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(...) I remember seeing a type of automatic transmission built many years ago, using Meccano (so something similar should be possible with Technic). It used a swinging 'bob weight' on an arm, driven by an eccentric, and had a second arm coming off (...) (25 years ago, 1-Dec-99, to lugnet.robotics)
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