Thane heins Rodin pulse motor

[DreamThinkBuild]

Hi Twinbeard,

3MRPM? Use a flux switching alternator on it and put it to work.

http://en.wikipedia.org/wiki/Flux_switching_alternator

[Jimboot]

What?   lol  3million rpm?

TB, have you ever knocked it off a bit and things go nuts? Like burning into the container.
Im surprised that the magnet holds together. Dyson got 100krpm, and I thought that was insane. ;]

Is there a vid of that?  Even Jims 250k, Id love to see. At those speeds, ya should be able to get some huge output from a couple turns of thickness as a gen coil, I might think.  Thats just crazy dudes.

MaGs

I calculated the spin based on the freq of the switching my scope was showing. Getting to run consistently was very difficult but maybe worth revisiting with a large gen coil setup. http://www.youtube.com/watch?v=oGmr-CU3-E0

[twinbeard]

Magluvin,

I had one (and only one) rotor explode inside the motor.  I had one escape, and dance across the table until it smashed itself on an iron rack.  Without lube, it constantly "burns" into the housing, in the form of heating a tiny bit of the plastic, dragging it, and throwing it out.  I wind up with a pile of fine plastic powder from it, and have to change the housings regularly.  One or 2 shots of wd40 a day help with this.  I tried with ferrofluid, which works great, but when it dries, it gums.  It needs to be a sealed housing, maybe machined from a teflon block or so, with the ferrofluid pressurized with the rotor inside. 

I have lots of videos of this device on my channel, but this one shows the current incarnation of the device:
http://www.youtube.com/watch?v=SrN0w4HnQN4

If you watch them from the beginning, you can see the evolution of the device, as well as the quality of instrumentation increasing.

What?   lol  3million rpm?

TB, have you ever knocked it off a bit and things go nuts? Like burning into the container.
Im surprised that the magnet holds together. Dyson got 100krpm, and I thought that was insane. ;]

Is there a vid of that?  Even Jims 250k, Id love to see. At those speeds, ya should be able to get some huge output from a couple turns of thickness as a gen coil, I might think.  Thats just crazy dudes.

MaGs

[twinbeard]

I calculated the spin based on the freq of the switching my scope was showing. Getting to run consistently was very difficult but maybe worth revisiting with a large gen coil setup. http://www.youtube.com/watch?v=oGmr-CU3-E0

That was my method of measuring frequency as well.  This type of config is really finicky, for sure.  Hard to tune, hard to stabilize, but nothing worth it comes easy, eh?

[Jimboot]

Magluvin,

I had one (and only one) rotor explode inside the motor.  I had one escape, and dance across the table until it smashed itself on an iron rack.  Without lube, it constantly "burns" into the housing, in the form of heating a tiny bit of the plastic, dragging it, and throwing it out.  I wind up with a pile of fine plastic powder from it, and have to change the housings regularly.  One or 2 shots of wd40 a day help with this.  I tried with ferrofluid, which works great, but when it dries, it gums.  It needs to be a sealed housing, maybe machined from a teflon block or so, with the ferrofluid pressurized with the rotor inside. 

I have lots of videos of this device on my channel, but this one shows the current incarnation of the device:
http://www.youtube.com/watch?v=SrN0w4HnQN4

If you watch them from the beginning, you can see the evolution of the device, as well as the quality of instrumentation increasing.

Huh same thing. I used an old thermometer container tube and melted some teflon into the base and regular  squirts of WD40. Spent a LOT of time on the floor looking for neos. lots of fine plastic powder.