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Author Topic: Break through!  (Read 57417 times)

Low-Q

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Re: New animation uploaded, LaFonte Research Group, Pure Pusedo Solid Device
« Reply #90 on: February 10, 2011, 10:35:29 AM »
We found that the "locking force" on the outside elements is far less than the locking force on the center rotor.
So that is a net gain in energy. Will post video of tests tomorrow night.
Butch
Looking forward to watch the test.

Good luck!

Vidar

Butch LaFonte

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Video of pure Pseudo Solid test on Youtube, second test being videoed now
« Reply #91 on: February 10, 2011, 09:36:43 PM »
See link > http://www.youtube.com/watch?v=gMcJ8J8DX6Q
Pictures attached also here

Omnibus

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Re: Video of pure Pseudo Solid test on Youtube, second test being videoed now
« Reply #92 on: February 10, 2011, 09:56:33 PM »
See link > http://www.youtube.com/watch?v=gMcJ8J8DX6Q
Pictures attached also here

So, what measurements do you intend to do to demonstrate it's OU? It appears to be OU but hard data are needed to support the hunch.

Low-Q

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Re: Break through!
« Reply #93 on: February 10, 2011, 09:56:37 PM »
Very simple experiment, but one of the most exiting videos I have seen! I did not expect the two sliding pieces should snap in together, but rather be forced apart. Looks like you got the forces with you, so to speak.

Can you say anything about how the "slide forces" are compared to the torque in the center rotor?

I look forward to the follow up with a more complete product :)

I whish you good luck Butch!

Vidar

Butch LaFonte

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MrMag

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Re: Video of pure Pseudo Solid test on Youtube, second test being videoed now
« Reply #95 on: February 10, 2011, 10:13:47 PM »
So, what measurements do you intend to do to demonstrate it's OU? It appears to be OU but hard data are needed to support the hunch.

Why don't you let him finish it first. If it does work like I hope, he shouldn't have to take any measurements. A working motor should be proof enough.

Butch LaFonte

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Re: Video of pure Pseudo Solid test on Youtube, second test being videoed now
« Reply #96 on: February 10, 2011, 10:47:15 PM »
Why don't you let him finish it first. If it does work like I hope, he shouldn't have to take any measurements. A working motor should be proof enough.
Because we don't have any money. That was built from scrap parts.
Butch

Omnibus

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Re: Video of pure Pseudo Solid test on Youtube, second test being videoed now
« Reply #97 on: February 10, 2011, 11:05:32 PM »
Why don't you let him finish it first. If it does work like I hope, he shouldn't have to take any measurements. A working motor should be proof enough.


I do agree with that. A working self-sustaining motor doesn't need any measurements. This motor, however, is very difficult to make self-sustaining, however, which doesn't mean it isn't OU. Proving that the motor at hand is an OU machine through measurements, without making it self-sustaining, is much much more easy than beating yourself to death, underfunded, using substandard infrastructure, in order to satisfy someone's psychological or political needs.

Low-Q

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Re: Video of pure Pseudo Solid test on Youtube, second test being videoed now
« Reply #98 on: February 10, 2011, 11:19:23 PM »
Because we don't have any money. That was built from scrap parts.
Butch
I whish I could help... How much do you need? (just curious)
PM me if you don't want to share it here...

Vidar

broli

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Re: Break through!
« Reply #99 on: February 10, 2011, 11:33:06 PM »
Always good to see ideas materialize into reality even if they are basic. It's really sad that the creativity and ingenuity of man is limited by the invention of money. I hope the day comes everyone will have a 3d printer at home, one that can even print out metal parts  ;D , do a youtube search on this . At least this revolution is slowly but surely happening already. They think the Internet is scary, but what happens if billions of people have the power to create anything they want very cheaply and fast.

Omnibus

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Re: Break through!
« Reply #100 on: February 10, 2011, 11:40:12 PM »
Always good to see ideas materialize into reality even if they are basic. It's really sad that the creativity and ingenuity of man is limited by the invention of money. I hope the day comes everyone will have a 3d printer at home, one that can even print out metal parts  ;D , do a youtube search on this . At least this revolution is slowly but surely happening already. They think the Internet is scary, but what happens if billions of people have the power to create anything they want very cheaply and fast.

What more than 5-axis CNC machine can 3D printer bring? Such CNC machines exist but the problem is only very few can afford them.

broli

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Re: Break through!
« Reply #101 on: February 10, 2011, 11:58:33 PM »
What more than 5-axis CNC machine can 3D printer bring? Such CNC machines exist but the problem is only very few can afford them.

I would say versatility, effeciency, size and as you mention cost. When you are depositing material layer by layer there's technically nothing going to waste. You can also create very intricate shapes with inner cavities that would be near impossible to achieve with a CNC router/mill/lathe. You could create bearings, tools, nuts/bolts, complex and organic structures like schaubergers machines, objects in objects. Basically one machine would do it all.

I really don't know what made inkjets cheaper than their cartridges but I hope something similar would happen with 3d printers and Direct Metal Laser Sintering.

Open source projects like makerbot, reprap or lasersaur are certainly a good boost in the right direction.

Anyway that's enough day dreaming for me.

Again good job team lafonte.

mscoffman

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Re: Break through!
« Reply #102 on: February 11, 2011, 02:18:58 AM »
Butch,

Money generally is not of primary importance when doing things.

Instrumentation is of prime importance because subsystem efficiency is
of prime concern. How the heck do you design something mechanically
complex and expect it to work efficiently the first time? Correct
instrumentation doesn't have to be expensive either.

From what I am seeing MIBS are always trying to bury important
projects too soon, and without proper analytical justification.

---

This is how I would do this.
I would link the center shaft to a flywheel mechanism. I would find one
that works ok in a toy vehicle first. I would then instrument the flywheel
with a white mark and an opto to read out flywheel RPMs.

1. Qenergy ~= flywheel RPM2-RPM1.

2. The speed of a demo motor during an OU demo can be arbitrarily slow.

3. The ability to store flywheel energy efficiently during the center magnet
    "flip" is of fundamental importance to the project. The connection has to
     be stiff.

I would use solenoid valve controlled compressed air to speed up the flywheel
when necessary.

a. Measure Qenergy decrease for 1/2 rotation with endcaps asserted.

b. Now deassert the endcaps use compressed air to keep flywheel RPM
    constant during the charge up flip and stop applying air during the back side flip
    where the magnet overruns the flywheel and charges it itself. This is what has
    to happen efficiently.

c. Use the results from A and subtract during B the flywheel speed should
    now be increasing. Qenergy = available for asserting and deasserting the
    endcap.

d. Build a lego endcap asserter/deasserter. This would work on-the-fly of a
    slowly rotating central magnet. It may need to store energy in hanging
    weights so they can act instantly, input energy constantly.

e. Power it from the central axle.

f. Remove compressed air. Flywheel RPM continually increasing = success.

:S:MarkSCoffman

gravityblock

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Re: Break through!
« Reply #103 on: February 11, 2011, 06:41:25 AM »
Ferrofluids have friction-reducing capabilities. If a thin coating is applied to the surface of a strong enough magnet, it can cause the magnet to glide across smooth surfaces with minimal resistance and can reduce wear in moving parts.

( http://en.wikipedia.org/wiki/Ferrofluid#Mechanical_engineering )

GB


Low-Q

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Re: Break through!
« Reply #104 on: February 11, 2011, 09:40:46 AM »
Ferrofluids have friction-reducing capabilities. If a thin coating is applied to the surface of a strong enough magnet, it can cause the magnet to glide across smooth surfaces with minimal resistance and can reduce wear in moving parts.

( http://en.wikipedia.org/wiki/Ferrofluid#Mechanical_engineering )

GB
Good idea! There is magnetic oils in different qualities. I bought a dl on ebay once. This oil dries out after quite short time and get sticky, but there is oils which can maintain its liquid form for very long time - specially those oils which is used to cool the voicecoils in tweeters - by applying magnetic oil in the magnet gap. These oils cost more, but are worth the money. At work, we apply such oils into tweeters which is repairable.

Also copper-paste/grease are very good for reducing friction.

Vidar