Subject:
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RE: compact designs
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 31 Jan 2002 21:07:18 GMT
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Reply-To:
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<(william@)NoSpam(howard-family.fsworld.co.uk)>
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Viewed:
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651 times
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> > Which 9v motor? The old version or the new version - the new version is
> > geared 350:1 relative to the old version anyway.
>
> No way! Have a look at this:
> http://web.mit.edu/sp.742/www/motor.html
"I must check facts I have read before posting to newsgroups"
... repeat 98 times ...
"I must check facts I have read before posting to newsgroups"
I'd mis-remembered '350rpm' as '1:350 gearing' from the manual for the Motor
Accessory set (8735, pg 9), and 350rpm is the 'official' lego number.
> If you can convince Steve Lane to give up details on his transmission
> design, I think he can help ;-)
Thought you were the one asking for help! ;-)
> > However, your request sparked some interest in me, so I designed a system
> > to achieve 1:2016 reduction
>
> Whoa. That's definitely gear-breaking torque.
Wasn't brave enough to try it (have already spent way too much money on
BrickLink this month without having to replace gears!)
> Save an image file from MLCAD and post it on Brickshelf!
These are the "stepped" build instructions as a DAT file
http://www.brickshelf.com/gallery/whoward69/LDraw/2016_reduction.dat
William
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Message has 1 Reply:
 | | Re: compact designs
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| (...) LOL, the 1:350 ratio really grabbed my attention when I first read it. 350 rpm sounds reasonable. The MIT link states a measured RPM of 375. I guess it's very dependant on the input voltage. (...) No, Jan-Tore Skålvik originated this thread. (...) (23 years ago, 31-Jan-02, to lugnet.technic)
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Message is in Reply To:
| | Re: compact designs
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| (...) No way! Have a look at this: (URL) new geared 9v motor revolves at a ratio of 1:3.79 (approximate) of the old 9v motor. (...) If you can convince Steve Lane to give up details on his transmission design, I think he can help ;-) (...) Whoa. (...) (23 years ago, 31-Jan-02, to lugnet.technic)
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