Re: Sync Motor Wanted

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

Original poster: "Richard Modistach" <hambone-at-dodo-dot-com.au> 

not that i have any practical experience yet but,
from what i remember off this list,
50 watts is too small considering the loss of torque,
nothing to drive exept air resistance of course,
salient pole capacitor start induction run i think.
terry, remember aprit is in aus, here we are talking
3000 and 1500 rpm, a problem if he wants to make
some for the american market as is export costs.
very limited market in aus.

regards
richard
aus

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, April 18, 2004 11:04 AM
Subject: Re: Sync Motor Wanted


 > Original poster: "Arpit Thomas" <arpit-at-inzo-dot-org>
 >
 > Thanks very much. Yes a microwave oven fan motor won't have enough torque
I
 > think. I was just experimenting :) I plan to use 50 watt motors from
 > pedestal fans, that should have enough torque.
 > What sorts of induction motors does this grinding flats technique work
for?
 > *********** REPLY SEPARATOR  ***********
 >
 > On 17/04/2004 at 6:45 PM Tesla list wrote:
 >
 >  >Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>
 >  >
 >  >Hi,
 >  >
 >  >Flat grinding is not a critical thing.   They do not have to be very
deep
 >  >either:
 >  >
 >  >http://hot-streamer-dot-com/TeslaCoils/Misc/sync_motor.txt
 >  >
 >  >Some motors have bearings that move when you take it apart but they
force
 >  >back into place as needed.  File to fit, paint to match, hammer to
perfect
 >  >;-))
 >  >
 >  >I still worry that a fan motor may not have enough torque.  But maybe
for
 >  >that tungsten rod configuration...
 >  >
 >  >Cheers,
 >  >
 >  >         Terry
 >  >
 >  >At 05:58 PM 4/17/2004, you wrote:
 >  >>How preceise do you need to be in  grinding the flats? I couldn't
really
 >  >>find much info on the web about this. I tried grindding flats in a
 >  >>microwave oven fan shaded pole motor but the rotor wouldnt even fit
back
 >  >>in after I finished *sigh*
 >  >snip... ;-))
 >
 >
 >