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Author Topic: Another Design For Your Consideration  (Read 21365 times)

Offline GraViTaR

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Another Design For Your Consideration
« on: October 07, 2007, 01:09:28 AM »
(http://i23.photobucket.com/albums/b375/HollywoodTom/gravwhipwheel.jpg)

When the rod with the two small wheels reaches 6:00, a latch catches the rod and holds it in that position. when the opposing wheel hits the ramp at 9:00, the latch releases at the 3:00 position and allows the rod to shift back in the other direction.
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Offline AB Hammer

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Re: Another Design For Your Consideration
« Reply #1 on: October 07, 2007, 05:20:13 AM »
GraViTaR

You will have a jam directly at the top of your ramp, and rod in tubing only work in direct force. You have an indirect force at your tubing witch causes high friction. Someone else has a 2 arm sliding unit that they patented in 2001, and I don't know how they got it through for it has a similar problem and doesn't work. But people have been able to ad a solenoid  to make the shift making that type work, but it needs help from other energy to work.
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Offline GraViTaR

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Re: Another Design For Your Consideration
« Reply #2 on: October 07, 2007, 10:23:25 AM »
Quote from: AB Hammer on October 07, 2007, 05:20:13 AM
GraViTaR

You will have a jam directly at the top of your ramp, and rod in tubing only work in direct force. You have an indirect force at your tubing witch causes high friction. Someone else has a 2 arm sliding unit that they patented in 2001, and I don't know how they got it through for it has a similar problem and doesn't work. But people have been able to ad a solenoid  to make the shift making that type work, but it needs help from other energy to work.

Maybe YOU will have a jam, but not me. It does not have to necessarily be a rod in tubing. It can be a set of roller bearings . Besides, the wheel itself has a large mass and it's inertia perpetuates the rotation with the double wheeled shaft just going along for the ride and keeping more weight on one side for the down swing. Come on man! Use your intuition!
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Offline GraViTaR

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Re: Another Design For Your Consideration
« Reply #3 on: October 07, 2007, 10:34:34 AM »
This one needs no latching mechanism:

(http://i23.photobucket.com/albums/b375/HollywoodTom/gravwhipwheel2.jpg)
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Offline acp

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Re: Another Design For Your Consideration
« Reply #4 on: October 07, 2007, 01:36:43 PM »
Okay, how does the weight which has been pushed towards the axis get pushed out again as it approaches the top? something has to reset the weights to their original position, i.e at the maximum extent. At the moment after one complete revolution, both weights will be in the position closest to the axis. dead end.
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Offline Joh70

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Re: Another Design For Your Consideration
« Reply #5 on: October 07, 2007, 02:12:22 PM »
Correct! And second: The bottom weight has to be moved first and then liftet, which causes additional friction on the ramp - exactly that much what m*g induces on the ramp to be liftet. This will not lead to energy gain. I give it a quarter revolution then it gets jammed somewhere short after the 9:00 clock position. dead end the II.

But keep on investigating. Build a model and test it out. It teaches a lot.
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Offline AB Hammer

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Re: Another Design For Your Consideration
« Reply #6 on: October 07, 2007, 02:42:33 PM »
GraViTaR

Bearings help but are not the only correction, You need to build a model and also realise a full size model that will produce usefull energy will weigh 10 to 30 lb per end. I feel that I already have the problem solved with one of my blueprints ready to start. I also went through all the possibilities of what can go wrong and a working model will cost a fair bit to build. For it requires highly precision parts.
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Offline erickdt

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Re: Another Design For Your Consideration
« Reply #7 on: October 07, 2007, 05:44:56 PM »
Quote from: GraViTaR on October 07, 2007, 01:09:28 AM
(http://i23.photobucket.com/albums/b375/HollywoodTom/gravwhipwheel.jpg)

When the rod with the two small wheels reaches 6:00, a latch catches the rod and holds it in that position. when the opposing wheel hits the ramp at 9:00, the latch releases at the 3:00 position and allows the rod to shift back in the other direction.

I have a pretty "fleshed out" version of something like this on my work computer. I'll post the plans on Monday when I get back into work.
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Offline IronHead

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Re: Another Design For Your Consideration
« Reply #8 on: October 07, 2007, 06:11:30 PM »
Just messing around , animation attached.
A bit jumpy and needs better timing .

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Offline erickdt

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Re: Another Design For Your Consideration
« Reply #9 on: October 07, 2007, 06:34:33 PM »
Quote from: IronHead on October 07, 2007, 06:11:30 PM
Just messing around , animation attached.
A bit jumpy and needs better timing .



What software did you make that in?
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Offline IronHead

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Re: Another Design For Your Consideration
« Reply #10 on: October 07, 2007, 06:59:49 PM »
Max 9
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Offline Joh70

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Re: Another Design For Your Consideration
« Reply #11 on: October 07, 2007, 08:45:14 PM »
please post again here, if they decided to check it out on TV or not
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Offline hansvonlieven

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Re: Another Design For Your Consideration
« Reply #12 on: October 07, 2007, 09:34:15 PM »
G'day all,

Even assuming that the ramp works, what force will push it on to the ramp?

All positions prior to the ramp are in equilibrium.

Besides, shouldn't it be turning in the opposite direction?

Hans von Lieven
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Offline erickdt

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Re: Another Design For Your Consideration
« Reply #13 on: October 07, 2007, 09:57:10 PM »
Quote from: IronHead on October 07, 2007, 06:59:49 PM
Max 9

Hey if I were to give you an fully textured MAX file would you be interested in doing a similar type of animation? I use VIZ at work to make stills but I'm not very knowledgable when it comes to making animations.
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Offline RebeLLz

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Re: Another Design For Your Consideration
« Reply #14 on: October 07, 2007, 10:30:25 PM »
Bullshit!
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