Working Magnetic Motor on you tube??

[Omnibus]

@magpower,

I'm still very much interested in @xpenzif motor but I'm afraid extensive discussion on that would distract us from the current effort. Nevertheless, let me ask you, did you try it with an 8-barrier stepper motor and 14 diagonal rows on the cylinder? It appears that the fact that for each distance between two barriers of the motor there are 1.75 distances between the maximums of the cylinder is of importance. I really wish this can be modeled through finite element method to get a clearer understanding of the correct geometries. I don't know whether code for such simulation exists and one has to sit down and write it himself. Hope we'll talk more about @xpenzif's device a bit later.

As for @alsetalonkin's device it was mentioned more than once that exact weight of the rotor, magnet strength, exact geometries may turn to be crucial factors, as is usual in such replications, so we have to try to be as close to the original as possible if the replication is to be successful.

[ken_nyus]

And if Electro-static forces are coming into play, even the choice of delrin/nylon, will be important.

[magpower]

@magpower,

I'm still very much interested in @xpenzif motor but I'm afraid extensive discussion on that would distract us from the current effort. Nevertheless, let me ask you, did you try it with an 8-barrier stepper motor and 14 diagonal rows on the cylinder? It appears that the fact that for each distance between two barriers of the motor there are 1.75 distances between the maximums of the cylinder is of importance. I really wish this can be modeled through finite element method to get a clearer understanding of the correct geometries. I don't know whether code for such simulation exists and one has to sit down and write it himself. Hope we'll talk more about @xpenzif's device a bit later.

As for @alsetalonkin's device it was mentioned more than once that exact weight of the rotor, magnet strength, exact geometries may turn to be crucial factors, as is usual in such replications, so we have to try to be as close to the original as possible if the replication is to be successful.

@ Omnibus
From memory I think I used 14 diag rows on main cylinder, but no stepper motor, just a free wheel hub. I guess I don't know what is a 8- barrier stepper motor, never heard of this before, but we should not talk on this board topic and can send me a message or talk later, might not matter if this OC motor works out.

Thks
Wayne

[biznesses]

i am modeling this assembly in cad.  What I am a little confused about is how he fastens everything down.  Especially the rotating magnets on the outside.  I was thinking a turned down shaft and a snap ring on top to keep it from slipping off.  What is the shaft made of?  Brass or SS?  Also, what is that red disk on top of the rotor?  Does it have any significance?  There are some details here that haven't been figured out.

SeanB

[twosox]

the red disk is a plastic type pulley, he called it a 'Friction testing pulley' poss to simulate a load on the spindle once connected to something.