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Author Topic: SMOT - Close to closing the loop ,second video-BIG improvement  (Read 67581 times)

billmehess

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #60 on: April 14, 2011, 02:13:53 AM »
A magnetic array on the return slope Will absolutely result in a sticky spot. All will be revealed soon, very soon.
Bill

mscoffman

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #61 on: April 15, 2011, 06:06:17 PM »
@FYI All,

I's like to point out that;
A ball running on rails where all of it's weight is supported on tracks
is a different thing then a ball rolling on it's circumference on a flat
plane.

A sphere will have a "coupling factor" between it's rotational
momentum and it's forward momentum. That coupling factor is
a gearing ratio between the rpm representing rotational momentum
and the forward velocity representing the forward momentum.

So by varying the track width is possible to change the gearing ratio
of the stored energy in the runner within certain limits. This can
cause the ball to act as a flywheel. This is not the same as a runner
always rolling on it's circumference which will always have a unity
transfer function.

:S:MarkSCoffman

maw2432

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #62 on: April 30, 2011, 09:59:01 PM »
Bill,  any progress on closing the loop?

Low-Q

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #63 on: May 01, 2011, 11:52:15 AM »
@FYI All,

I's like to point out that;
A ball running on rails where all of it's weight is supported on tracks
is a different thing then a ball rolling on it's circumference on a flat
plane.

A sphere will have a "coupling factor" between it's rotational
momentum and it's forward momentum. That coupling factor is
a gearing ratio between the rpm representing rotational momentum
and the forward velocity representing the forward momentum.

So by varying the track width is possible to change the gearing ratio
of the stored energy in the runner within certain limits. This can
cause the ball to act as a flywheel. This is not the same as a runner
always rolling on it's circumference which will always have a unity
transfer function.

:S:MarkSCoffman
In any case, there should always be a unity transfer function (?). The difference is the coupling factor which determine the forward speed versus the rpm of the ball. In any case the mass in the ball is accelerated to a given rpm which always correspond to its forward acceleration - regardless of the coupling factor X : 1, or if the ball rolls directly on its circumference 1:1. However, in practice, losses are more likely to occour when the coupling factor are very high (high rpm, low forward velocity).

Vidar

billmehess

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #64 on: May 01, 2011, 03:00:04 PM »
Bill,  any progress on closing the loop?
Still working on it daily. That last 1/4" is proving illusive. But since I have made up 2 1/2 " of a 2 3/4" drop I believe the remaining  1/4" will be overcome also.
Bill

Poit

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #65 on: May 02, 2011, 12:43:58 AM »
Still working on it daily. That last 1/4" is proving illusive. But since I have made up 2 1/2 " of a 2 3/4" drop I believe the remaining  1/4" will be overcome also.
Bill

Maybe this video will give you inspiration? http://www.youtube.com/watch?v=_AWWfwtaYT4

Poit

P.S If any german speaking people out there - could you please translate the video for me? :) thank you

onthecuttingedge2010

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #66 on: May 02, 2011, 01:46:20 AM »
since the magnetism is stronger than the mass of the ball it might require an ideal torque on the ball like adding some non magnetic gyros to the sides of the ball to allow it to torque away from the grip of the highest field strength every time.

mscoffman

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #67 on: May 02, 2011, 08:32:29 PM »
Don't forget the upslope balance beam arrangement, have one ball
on the now unbalanced track, lift the next one 1/4" into place
at the beginning of the array.

:S:MarkSCoffman

hhobrian

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #68 on: May 02, 2011, 09:31:26 PM »
This video also looked inspirational

http://www.youtube.com/watch?v=sPLILn3sCdQ&feature=related

Good luck!

onthecuttingedge2010

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #69 on: May 02, 2011, 10:27:36 PM »
the problem here is you are 'NOT' taking advantage of the potential current that the ball produces to let it escape the sticky spot. use a coil to disrupt the magnetic attraction at the sticky spot, what is so difficult about this?

vonwolf

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #70 on: May 02, 2011, 10:43:03 PM »
Bill
   I asked this earlier but can you drop the ball into another ramp like the smot in the begging of the circuit and drop the ball back into the starting point?
  Pete

billmehess

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #71 on: May 03, 2011, 12:13:27 AM »
Bill
   I asked this earlier but can you drop the ball into another ramp like the smote in the begging of the circuit and drop the ball back into the starting point?
  Pete
When the ball drops from the top into the scoop it ends up still at a lower level than the entry point.
If the ball enters another smote configuration at that point it will exit at even a lower level. It would be logical to assume that one could simply have a line of smots each one raising the level when in reality just the opposite is occurring.
What I have been able to do with the setup as shown on the videos I have posted on you tube is to
be able to "recapture" approx. 2.25" of the 2.50" drop.
The entire smot configuration is mounted on a board which is tilted upwards so that this additional height helps to compensate for the drop distance.
My most current device has some changes. I have the ball exit the scoop and it enters a u channel. But due to the speed of the exit it moves up the uchannel about 6 in. (Thus up the incline).
At this point I can loop it back to the entry but I am still about 1/4" short of reentering the entry unchannel.
I am working on closing that gap.
« Last Edit: May 03, 2011, 12:56:38 AM by billmehess »

vonwolf

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #72 on: May 03, 2011, 01:12:40 AM »
When the ball drops from the top into the scoop it ends up still at a lower level than the entry point.
If the ball enters another smote configuration at that point it will exit at even a lower level. It would be logical to assume that one could simply have a line of smots each one raising the level when in reality just the opposite is occurring.
What I have been able to do with the setup as shown on the videos I have posted on you tube is to
be able to "recapture" approx. 2.25" of the 2.50" drop.
The entire smot configuration is mounted on a board which is tilted upwards so that this additional height helps to compensate for the drop distance.
My most current device has some changes. I have the ball exit the scoop and it enters a u channel. But due to the speed of the exit it moves up the uchannel about 6 in. (Thus up the incline).
At this point I can loop it back to the entry but I am still about 1/4" short of reentering the entry unchannel.
I am working on closing that gap.

Bill
  I might have used the wrong terminology here, it looks like the 1st ramp is sloped up slightly but if thats not the case then my suggestion in useless
  Pete

Poit

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #73 on: May 03, 2011, 02:19:34 AM »
When the ball drops from the top into the scoop it ends up still at a lower level than the entry point.
If the ball enters another smote configuration at that point it will exit at even a lower level. It would be logical to assume that one could simply have a line of smots each one raising the level when in reality just the opposite is occurring.
What I have been able to do with the setup as shown on the videos I have posted on you tube is to
be able to "recapture" approx. 2.25" of the 2.50" drop.
The entire smot configuration is mounted on a board which is tilted upwards so that this additional height helps to compensate for the drop distance.
My most current device has some changes. I have the ball exit the scoop and it enters a u channel. But due to the speed of the exit it moves up the uchannel about 6 in. (Thus up the incline).
At this point I can loop it back to the entry but I am still about 1/4" short of reentering the entry unchannel.
I am working on closing that gap.

Exactly!! Thank you.... you see, only people like you and I can know this (actually experimented with it)... for all the rest, the human mind makes an illusion to the facts.

mscoffman

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Re: SMOT - Close to closing the loop ,second video-BIG improvement
« Reply #74 on: May 03, 2011, 08:11:26 PM »
This video also looked inspirational

http://www.youtube.com/watch?v=sPLILn3sCdQ&feature=related

Good luck!


Yeah, that is one of my favorite SMOT videos , even though I can't
read a word of the text....It seems like the "ramp" could be made as
long as necessary, then position energy collecting coils (or whatever)
all along the way... then have a "one battery" style alarm clock motor
with the battery replaced by a capacitor charged by the coils diode
or'd together *slowly* drag the runner across the sticky spot.

If those clocks can run for a year on one AA battery, they can't take
much energy to keep them going.

---

The other question is could you have the array accelerate the ball
faster downhill then have it rise up over top of the starting point?

It should be possible to "shoot" the ball into the array at various
speeds and record the outcomes. Is any energy really being added
by the magnets? If one saw the transfer function as a graph
it might be easier to design a successful mechanism.


:S:MarkSCoffman