Bedini Ferris Wheel Regauging Motor

[LutherG]

Aaron, I've contacted erfinder and he would love to come back to the forum. I'm sure you'll hear from him soon!

best regards to all,

Luther

[John_Bedini]

Bedini GT3

Hint!!!!!!!

You guys need to go back to the video you posted and look where the reed is on that wheel.
Then freeze frame and tell me what the timing is. Draw the wheel use a protractor if need be.
JohnB

[cody]

Interesting

I had suspected there might be something going on there. Thanks.

[Turion]

An idea for those of you trying to build the Ferris Wheel on the cheap, like ME!
Get the largest bicycle wheel you can find. Cut "spokes" out of 2x2 the length you want, to make the wheel the size you want. The spokes must all be equal length. Angle cut the outside end of the spokes so only about 1/2 inch of the wood comes in contact with the material we will attach on the outside to form our new wheel. Attach the spokes around the wheel with screws. To get a solid fit on mine, I am sanding the end closest to the wheel with the end of my belt sander to take some out of the middle and let the outside come into more solid contact with the wheel. Cut strips of 1/4 inch plexiglass (from Lowes or Home Depot) wide enough to match the length of the magnets you will be using or longer if you are going to cut out holes to expose the back of the magnet. Wrap the strips of plexiglass around the outside of your new spokes and screw them in place. There will be seams, so use your imagination on how to deal with them. Mark the plexiglass for where the magnets will be placed and for how it fits on your new spokes, then remove it to cut the holes for the magnets. Magnets glue well to that plexiglass material with superglue, and this is not a high speed motor, but take precautions. For larger wheels you might consider threaded rod instead of 2x2. A 42" wheel with 3 foot pieces of threaded rod going out in all directions makes a pretty dang big wheel! I am trying both ideas with two wheels I have, so will let you know which works the best. The threaded rod, when tightened onto the wheel with locking nuts, forms a pretty stiff structure to bolt the plexiglass to, and there is not a lot of side to side torque if you are careful with your wheel. Might want to use brass threaded rod if steel will muck things up. That is a question for John, and brass is lots more expensive.

[nvisser]

Hint!!!!!!!
You guys need to go back to the video you posted and look where the reed is on that wheel.
Then freeze frame and tell me what the timing is. Draw the wheel use a protractor if need be.
JohnB




The rotor turns ccw.There are 60 deg between magnets.The read switch is 23 deg after tdc from thr right side of the u coil.

[everyidea]

Here is a breakdown of the video and magnet/switching as I understand it. I tried to show the flux as white ovals. The flux of 1 and 4 heading into the U and the flux of 2 and 5 heading out of the U and make the closest legs of the U opposite poles. At the same time the reed switch fires pulling 1, 2, 4, 5 to the U poles. The reed switch comes out of the 2 and 5 flux and turns off, killing the U pulling force and cogging. Then the next magnet comes into position 2 or 5 and we start all over again.

rw

[Rl2003]

Visser, How do you get 60 degrees???
There are 16 magnets on the big wheel, thats 22.5 degrees and as well on the
timing wheel. There are ten poles on the small wheel with 5 timing magnets at
72 degrees. If not I just built it wrong.

I am just finishing the timing wheel and I made it to be able to time both in one wheel..

The rotor turns ccw.There are 60 deg between magnets.The read switch is 23 deg after tdc from thr right side of the u coil.

[john_g]

[byjoveoldchap]

Hint!!!!!!!

You guys need to go back to the video you posted and look where the reed is on that wheel.
Then freeze frame and tell me what the timing is. Draw the wheel use a protractor if need be.
JohnB

Hi John,
my apologies if this is off topic, but I know this will interest you.
I have been listening to your Test Audio Page for Synthmaker and I just LOVE listening to 'That Old Black Magic' by The Clovers. What a great, swinging version they performed!

Knowing of your interest in sound and music and your expertise in amplifiers and 3D sound, please check this out. Jump to approx 7mins to see the specific demo I refer to.

Thank you for guiding and helping everyone you can.

~~~

[nvisser]

Visser, How do you get 60 degrees???
There are 16 magnets on the big wheel, thats 22.5 degrees and as well on the
timing wheel. There are ten poles on the small wheel with 5 timing magnets at
72 degrees. If not I just built it wrong.

I am just finishing the timing wheel and I made it to be able to time both in one wheel..

My answer was an attempt to answer the question (post 438) that John asked about the you tube video ,post 427.

[John_Bedini]

Bedini GT3

I did not use any Iron wire.
John B

[woopy]

pmh motor spining

Hi Everyidea

thanks for the your idea

So i modify my previous project to this one

and it works really good for a totally basic crude setup

this motor begin to spin at 2.3 volts and 25 ma, and accelerate very gently as i add more volts .
i stop at at 10 volts because the magnet are simply hot glued on the HDD base and the motor spin really happily.

Will make some measurement tomorrow

see the reed swith on the north coil

i use ring neo magnet, alternating N an S ,do you think it could work better with superpole magnet ( but can somebody explain me what is exactly a super pole)

will post further info if it is interesting

John , Do not hesitate to say me if i am totally out off topic with this motor config.

hope this helps

good luck at all

Laurent

[everyidea]

@ Laurent,

Great job!

I wasn't my idea, I just noticed it from JB's drawing for Cody, his hint and the video, but glad you got it working.

Not sure on the super poles. I just want to make it the recommended way first then experiment. It's been said to get it self running the flux pattern needs to be very sharp. I don't know if your neo's are sharp enough. Only one way to find out...

rw

[Jetijs]

Great job
Would you care to make a video about this? Your videos are always interesting!
Jetijs

Hi Everyidea

thanks for the your idea

So i modify my previous project to this one

and it works really good for a totally basic crude setup

this motor begin to spin at 2.3 volts and 25 ma, and accelerate very gently as i add more volts .
i stop at at 10 volts because the magnet are simply hot glued on the HDD base and the motor spin really happily.

Will make some measurement tomorrow

see the reed swith on the north coil

i use ring neo magnet, alternating N an S ,do you think it could work better with superpole magnet ( but can somebody explain me what is exactly a super pole)

will post further info if it is interesting

John , Do not hesitate to say me if i am totally out off topic with this motor config.

hope this helps

good luck at all

Laurent

[John_Bedini]

Bedini GT3

I know you guys are looking for cheap, but come on lets do it with the bi-polar switch and a hall with the timing wheel. The reed makes it cheap but that is not what your looking for and it will burn out just when you need it to work right. I guess I will half to build one myself and post it. (ED says you need to guide the magnets in the right streams 4 total.)
John B