A new gravity wheel design?
Moderator: scott
re: A new gravity wheel design?
Hi Raj,i like the look of tour design and have made similar designs my self it never went out of balance but it did rotate to 40 rpm looked very promising ,but failed,i would build it if i were you there is a lot to learn from this lesson, all the best Andy
Only by making mistakes can you truly learn
re: A new gravity wheel design?
Hello everybody!
Thanks again to all for your replies, especially to Alan.
I am still toiling to find an answer to my query:
Whether the weight resting/moving/rolling on the inner rims of the drum wheel , between 4 o'clock and 6 o'clock positions, will provide any torque to the wheels or not.
I fully appreciate Alan's analysis, but my question remained unanswered.
I have attempted a crude (part) build, (see photos below. The problem with any OB wheel built, is that we must make absolutely sure it is perfectly balanced in the first place before using any weight/s to see that weights will force the wheel in continuous overbalanced. No matter how much I have tried, I have succeeded in building a perfect balanced wheel in the first place, due to lack of know-how, tools and facilities. So when I built, I only search for pointers that my design may work.
So the test I just carried out is only to get some indications/answers to my original question above.
For the test, I built a wheel, as perfect as I could. using bicycle wheels a inner rims and open cylindrical wheel. I have used only one weight, that resting/moving/rolling on the inner rims between 4 o'clock and 6 o'clock positions on the wheels.
If the wheels do not turn at all, it will meean that, that one weight is not providing any torque, sufficient to turn the wheels. If the wheels turn a bit, it will mean that, the one weight is providing some torque sufficient to turn the wheels a bit. If the one weight comes to rest on the inner rims at the 6 o'clock position on the wheels, then it will mean that the one weight is providing full normal torque.
By the way, my UGW is bi-directional...
Results of the test: (see photos)
When the one weight was placed at the 4 o'clock position on the clockwise side of the wheels, the wheels turned just a bit clockwise, (about 20 degrees), and the weight did not reached the 6 o'clock position.
When the one weight was placed at the 8 o'clock position on the anti-clockwise side of the wheels, the wheels turned anti-clockwise, and the one weight reached the 6 o'clock positions on the wheels easily.
The difference in distance moved clockwise and anti-clockwise, by the one weight may be due to balance imperfection of the wheels in the first place.
My test have shown that the weight does provide torque to the wheels between the 4 o'clock and 6 o'clock positions on the wheels.
Now, I believe my UGW design must be looked into further.
Q.E.D
Kindy do me a favour.
Tell us what you think of the above explanation.
Regards.
Raj
Thanks again to all for your replies, especially to Alan.
I am still toiling to find an answer to my query:
Whether the weight resting/moving/rolling on the inner rims of the drum wheel , between 4 o'clock and 6 o'clock positions, will provide any torque to the wheels or not.
I fully appreciate Alan's analysis, but my question remained unanswered.
I have attempted a crude (part) build, (see photos below. The problem with any OB wheel built, is that we must make absolutely sure it is perfectly balanced in the first place before using any weight/s to see that weights will force the wheel in continuous overbalanced. No matter how much I have tried, I have succeeded in building a perfect balanced wheel in the first place, due to lack of know-how, tools and facilities. So when I built, I only search for pointers that my design may work.
So the test I just carried out is only to get some indications/answers to my original question above.
For the test, I built a wheel, as perfect as I could. using bicycle wheels a inner rims and open cylindrical wheel. I have used only one weight, that resting/moving/rolling on the inner rims between 4 o'clock and 6 o'clock positions on the wheels.
If the wheels do not turn at all, it will meean that, that one weight is not providing any torque, sufficient to turn the wheels. If the wheels turn a bit, it will mean that, the one weight is providing some torque sufficient to turn the wheels a bit. If the one weight comes to rest on the inner rims at the 6 o'clock position on the wheels, then it will mean that the one weight is providing full normal torque.
By the way, my UGW is bi-directional...
Results of the test: (see photos)
When the one weight was placed at the 4 o'clock position on the clockwise side of the wheels, the wheels turned just a bit clockwise, (about 20 degrees), and the weight did not reached the 6 o'clock position.
When the one weight was placed at the 8 o'clock position on the anti-clockwise side of the wheels, the wheels turned anti-clockwise, and the one weight reached the 6 o'clock positions on the wheels easily.
The difference in distance moved clockwise and anti-clockwise, by the one weight may be due to balance imperfection of the wheels in the first place.
My test have shown that the weight does provide torque to the wheels between the 4 o'clock and 6 o'clock positions on the wheels.
Now, I believe my UGW design must be looked into further.
Q.E.D
Kindy do me a favour.
Tell us what you think of the above explanation.
Regards.
Raj
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re: A new gravity wheel design?
Dear raj,
If you oblige the weight to follow a different path between 4:00 and 6:00, you loose this weight on the right side of the wheel (its contribution on the right side overbalance disapears).
Therefore the difficulty is to find a mechanism which allows the weight rotation applied to the inner rim of the wheel
If you oblige the weight to follow a different path between 4:00 and 6:00, you loose this weight on the right side of the wheel (its contribution on the right side overbalance disapears).
Therefore the difficulty is to find a mechanism which allows the weight rotation applied to the inner rim of the wheel
I cannot imagine why nobody though on this before, including myself? It is so simple!...