Subject:
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Re: What is RPM of Gear Motor???
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 7 Jul 1999 15:14:58 GMT
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Original-From:
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Luis Villa <LIV@saynotospamDUKE.EDU>
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Viewed:
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812 times
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On Wed, 7 Jul 1999, alex wetmore wrote:
>
> However, you could do this by adding 5:1 gearbox to a 6:1 gearbox.
> 5:1 is pretty easy to make with the 40:8 gears. 6:1 can be made
> by combining the 24:8 and the 16:8.
Assuming those numbers are correct (I've been too slack to actually look
up the tooth counts), I'll give further clarification on my earlier post.
I'm using a combination of three 40:8 combos, giving me an effective ratio
of 125:1. The gearing is remarkably smooth, allowing for a clean fall of
the post, as long as the fourth axle (containing the final 8 tooth gear)
is attached only to the rotation sensor and not to any other posts.
-Luis
#######################################################################
Profanity is the one language that all programmers understand.
-Anonymous
#######################################################################
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Re: What is RPM of Gear Motor???
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| (...) You could get close using the differential as an adder. The ratio of speeds above is about 11:1 (its 11.3:1, but lets keep things as integers). That is a prime number, and we know there aren't any lego gear options that give you an 11:1, so (...) (25 years ago, 7-Jul-99, to lugnet.robotics)
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