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More information about your application would be helpful. The first thought
that jumps to mind is "Use a more powerful motor. Duh!". So there must be
something that I am missing. There must be some reason you need to use the puny
motor.
Maybe you want a torque amplifier. Think of it as the op-amp of the mechanical
world. I've seen them used in a differential analyzer built from Meccano. This
thing has a ton of gears and a lot of power loss from friction. The torque
amplifier use power from another motor to boost the power of the gear train.
Aside from the Meccano version there are also some LEGO implementations on the
web. Just search for "torque amplifier".
Another idea that comes to mind is fly-by-wire. Break the gear train and put an
encoder (rotation sensor) on one side of the break and a motor/encoder combo
(NXT motor) on the other side. When the input encoder senses rotation drive the
motor to match it. You could even scale the speed to be faster or slower than
the input.
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Message has 1 Reply:
 | | Re: Boosting power in a gear train
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| (...) A torque amplifier is EXACTLY what I need; thank you! Now I just need to figureout how to build one. Google has a few pix, two lego ones actually. I hope this will get me where I need to go! Thanks for the help, Rafe (18 years ago, 21-Mar-07, to lugnet.technic, lugnet.robotics)
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Message is in Reply To:
| | Boosting power in a gear train
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| I have a gear train that is driven by a very weak input, very small torque. There are some places in the gear train where I have some worm gears driving some 'regualr' gears. As I go along the gear train, I boost the output as much as I can with (...) (18 years ago, 20-Mar-07, to lugnet.technic, lugnet.robotics)
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