 | | RE: Strong gear assemble? —Wilcox, Doug
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| | | A worm gear mounted against a 40t gear is, I believe, the 2-gear combination that provides the most torque. You may want to gear down the worm gear first, providing even more torque. In general, as speed decreases (assuming the decrease is caused by (...) (24 years ago, 21-Sep-00, to lugnet.robotics)
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| | | | | Re: Strong gear assemble? —Tilman Sporkert
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| | | | | (...) combination (...) (assuming (...) If you have a turntable around, you can do even better than that. I never counted how many teeth it has on the outside, but it's a lot more than the 40t gear. And even better, it has molded on "mini-beams" to (...) (24 years ago, 21-Sep-00, to lugnet.robotics)
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| | | | | | | Re: Strong gear assemble? —Amnon Silverstein
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| | | | | | I second the turntable suggestion. Triple black pin two beams to the molded-in mounting lugs and you can make a perfect space to worm-gear the outer ring. As an added bonus you get tons of mounting surface to put the rest of your big- rig (...) (24 years ago, 21-Sep-00, to lugnet.robotics)
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| | | | | Re: Strong gear assemble? —Jason Stern
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| | | | Thanks for the help! After sending out the email, I thought of a way to do it (using a worm and a 40t gear ;), so now it lifts its self. Its interesting to watch as it rises though, because even though its semetricle, it goes up on first one leg, (...) (24 years ago, 21-Sep-00, to lugnet.robotics)
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| | | | | | Re: Strong gear assemble? —Jennifer Clark
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| | | | | (...) A word of caution - the worm gears are certainly great for large gear reductions in small spaces, and it is usually easy to brace them well, but they have one disadvantage over a traditional gear train - they create more friction, and are (...) (24 years ago, 22-Sep-00, to lugnet.robotics)
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| | | | | | | Re: Strong gear assemble? —Jude Beaudin
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| | | | | | | (...) Would the friction created be that much of a problem? Would the loss in efficiency be that noticeable? (Note: These are not rhetorical questions so a response would be appreciated :-) Jude (24 years ago, 22-Sep-00, to lugnet.robotics)
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| | | | | | | | | Re: Strong gear assemble? —Jennifer Clark
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| | | | | | | | (...) As ever, the most appropriate response to this question would have to be "it depends". In "real" engineering applications the answer is generally yes - certainly when I have used linear drivers based on worm screws in the past, their (...) (24 years ago, 22-Sep-00, to lugnet.robotics)
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| | | | | | | Re: Strong gear assemble? —Jason Stern
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| | | | | | | Im ahead of you there, I already did that :p. I need to add even more torque. The the current setup is this: worm to central 40pt gear, 40pt's axle is connected to one 8pt gear on either end and then after that a 16 (i think)on each end also. The (...) (24 years ago, 22-Sep-00, to lugnet.robotics)
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| | | | | | | | | Re: Strong gear assemble? —Tilman Sporkert
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| | | | | | | | | (...) 1:40. There's a single thread on the worm, moving one "tooth" per revolution. That gives you the same ration as 1 tooth gear. As has been discussed before, the characteristics of this worm gear reduction will be slightly different than (...) (24 years ago, 22-Sep-00, to lugnet.robotics)
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| | | | | | | | | Re: Strong gear assemble? —Adam
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| | | | | | | | (...) 1:40 - The worm gear is *effectively* a 1-tooth gear. -Adam (24 years ago, 22-Sep-00, to lugnet.robotics)
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| | | | | | | Re: Strong gear assemble? —Peter Vogel
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| | | | | | According to "The Art of LEGO Design" a worm gear is best used at high-speed, low-torque points in the drive train. In other words, drive the worm from the motor, then do any further gearing... Unless your normal gear train is trading torque for (...) (24 years ago, 22-Sep-00, to lugnet.robotics)
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| | | | | | Re: Strong gear assemble? —Chris Phillips
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| | | | (...) One trick I've used in the past to squeeze a little more torque into a small package is to pair up multiple motors. Hook their power connectors together (being careful to get the same polarity) and connect their drive shafts to do the same job (...) (24 years ago, 22-Sep-00, to lugnet.robotics)
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