Subject:
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Re: Strong gear assemble?
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 21 Sep 2000 22:57:06 GMT
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Viewed:
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590 times
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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, then the other! Same when it goes back down. I do need to add one
more worm gear, right now it lifts everything but the rcx (very close though),
so it needs a little more torque. THen all i need to do ius add treads and im
set to go!
Jason
P.S. I've got to get one (or two!) of those turntables!
"Wilcox, Doug" wrote:
> 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 "gearing down," not slowing the motor), torque
> increases.
>
> Sounds like a fun project. Hope you can share pictures.
>
> Doug Wilcox
> Senior Web Developer
> iMcKesson Provider Solutions Group-Needham
> 160 Gould Street, Suite 130
> Needham, MA 02494-2308
> Phone: 781.453.2900 x 237
> Fax: 781.455.7990
> e-mail: Doug.Wilcox@iMcKesson.com
> http://www.imckesson.com
>
> "You see, I had this space suit. How it happened was like this ..."
> (Opening lines from Robert A. Heinlein's Have Space Suit-Will Travel)
>
> > -----Original Message-----
> > From: news-gateway@lugnet.com
> > [mailto:news-gateway@lugnet.com]On Behalf
> > Of Jason Stern
> > Sent: Thursday, September 21, 2000 5:05 PM
> > To: lego-robotics@crynwr.com
> > Subject: Strong gear assemble?
> >
> >
> > What is the strongest gear assebly? Using mostly RIS 1.5 pieces, but
> > some extras, I need to design a gear box that has enough strength to
> > lift the contraptions own weight. What is the strongest
> > possible settup
> > of gears that i could use to achieve this?
> >
> > Jason
> >
> > P.S. Its for a robot that will be able to lift its self of the floor
> > almost a full foot, and still contiue to move forward or back, left,
> > right. It does this by using alot of 1x16 technic bricks (with the
> > holes) hooked up in an x/crisscross pattern. when the top two are
> > squeezed, it pushes the lower ones out, efetivly sending the robot up
> > into the air and above any obsticles in front of it.
> >
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Message has 2 Replies:
 | | Re: Strong gear assemble?
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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)
| | | Re: Strong gear assemble?
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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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Message is in Reply To:
| | RE: Strong gear assemble?
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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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