Re: sync motor :-( update_1

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Kidd6488-at-aol-dot-com>

In a message dated 7/29/01 05:44:45 PM Eastern Daylight Time, 
tesla-at-pupman-dot-com writes: 


>
> So the motor comes up to a nice steady speed and seems to basically run fine 
> now that the spacer problem is fixed?   



pretty much so, yes. 

>
> Is the overheating and high current problem fixed now too?   


I don't know what the current was, my ammeter isn't working properly... but 
it is running cooler. 


>
> Does the motor shaft turn freely by hand?   


It's not the best, but it does turn by hand. 


>
> There should not be any binding or high friction.  I would suspect that the 
> RPM 
> meter and strobe thing is not working right before I would suspect the 
> motor is 
> defying the laws of physics :-)) 
>
> I would make a new strobe disk.  Just a disk of paper.  Half is white, the 
> other half is black and attach it to the motor shaft.  With only a 
> florescent 
> light, the thing should be in sync.  Maybe watch the disk as you remove 
> power 
> to watch it go in and out of sync.  If that does not work, find another 
> florescent light.  Newer ones may have electronic ballasts that may be 
> messing 
> up the strobe effect. 



I'll try that. 


>
> Sometimes the strobe disk thing is pretty hard to see.  I personally don't 
> trust those RPM meters...  I can't help thinking that the motor is running 
> fine 
> and perfectly in sync but the problem is in trying to see it. 
>
> If worst comes to worst, perhaps the motor has an electrical defect in the 
> windings.  But that is about the only thing that could possibly be wrong 
> (demonic possession is not my area :-)).   


>
> You may want to weigh the motor to find out about how much it will cost to 
> ship.  Probably about $35 for the round trip.  My infinite Tesla coiling 
> budget 
> could cover that if the problem is cool ;-))  I have the toys here to find 
> the 
> problem if it is going to play tough :-))  We really need to know "why"... 



I weighed, it and it weighs 14lb. alone. I'll talk to you off-list about 
shipping it. 


>
> Cheers, 
>
>        Terry





--------------------------------------- 
Jonathon Reinhart 
hot-streamer-dot-com/jonathon