One magnet no bearing Bedini motor

[xenomorphlabs]

Bill: Nice that you get the rotation going. Its a good start.

In my opinion the rotation is much too slow. It will actually stabilizeand stay in the center with a faster rotation, that i usually get with the 10k pot all the way down. But you are saying that you have used a low resistance.
Hmm, have your tried a higher battery voltage? What are you running at? if you are not doing so already, i think at 12 V it should run much faster i am sure.
What is your core material?

[Pirate88179]

@ xenomorphlabs:

My core material is a group of iron nails cut to fit inside and I made a mold out of another empty core and poured epoxy inside.  (I used vaseline for a mold release) Once it cured, I can now slide this core into any other coil as needed and it can be easily adjusted . In this set-up, the core is recessed about .250" from the top surface. I am using 9 volts to power it.  I was thinking of borrowing one of my large 12 volt bats from my other Bedini project just to see if it would crank it up straighter.  I was getting very high speed when just using a flat surface but it wandered around too much and now it sits on a coffee can lid that is glued to the bottom of a wine glass to give it a slight conical (concave) shape. (The white foam plate around the edge is just for saving the magnet when it falls off, it does not touch the spinning area at all)  I may be better off just going back to the flat surface.  It actually stood up a lot straighter and made a high pitch as it was really turning.  I will play with it and see.  Thanks for your help.

Bill

[Pirate88179]

http://www.youtube.com/watch?v=GgO3503GIxc

Above is my 2nd attempt.  I switched to a flat platform again and, since my 9 volts need recharging, I used a 12 volt battery.  This time it was spinning very fast and I had it tuned so it would be as slow as possible but it was still flying.  I still had the "X" wobble even when I cranked it up.  This is much better and I will get the right components (pots) and work on it some more.  Thanks.  (This magnet spinning was very loud and you can barely hear me in the video)

Bill

[xenomorphlabs]

Bill: It is impossible to see from this video, but you can check if the edge of your magnet is round or if maybe part of it is broken off. Jonnydavro and myself had a pair of magnets where one of them had the side slightly unrounded and that results in the tumbling "X" movement.
I explain that in my first vid: http://www.youtube.com/watch?v=s18_kZBIOp0

Maybe try another one of these "snake eggs".

The rotation speed is good now, you can go from there nicely !

Regards,
Xenomorph

[jonnydavro]

Hi.Today i tried adding a slave coil to see what would happen if i pulsed the magnet from both ends.The results were the rpm's seem to be higher and the pitch/sound off the motor increased but this would need checking with a tachometer.Here is a pic and a vid.Regards jonnydavro
http://www.youtube.com/watch?v=Jx-atFOp2Ds