Re: Hard Drive Motors, RSGs and Stuff

["Paul Mathus" <pmathus-at-learningco-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

     Just whip out the ole' angle grinder and grind some flats into a motor 
     armature.  As sundog says, it's pretty easy, and there are some fairly 
     clear instructions on Terry Fritz's site on how to do it.
     
     check out 
     http://users.better-dot-org/tfritz/syncmot.zip
     http://users.better-dot-org/tfritz/rgap.zip
     http://users.better-dot-org/tfritz/RSStrobe.htm
     
     paul


______________________________ Reply Separator
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Subject: Hard Drive Motors, RSGs and Stuff
Author:  "Tesla list" <tesla-at-pupman-dot-com> at INTERNET
Date:    7/17/00 12:22 PM


Original poster: "Troy Peterson" <highvoltage-at-mad.scientist-dot-com> 
     
Hi all, 
     
It's been a while since I've posted to this list, but coiling has been good
for 
me. While I am still looking for a solution to my capacitor problem (Bottles 
are too lossy and big for my coil, but thats all I have...) Some other 
questions have finnally gotten the better of me. Firstly, what exactly is the 
diference between a syncronise RSG and an Asyncronous RSG. I have an idea: it 
has to do with firing, a sync gap always fires on the peaks or something, but 
please elaborate.
Also, how do you guys think a hard drive motor would work for a RSG? The motor 
I am referring to is a stepper motor that runs on 12volts, very compact, 
consisting 10cm outer disk for mounting and a rotating cylinder in the middle 
of this, the whole thing is about 3m long. If the specs for a typical hard 
drive are to be believed, these motors are capable of atleast 3600 RPM.
    My next question is of line frequency, just a point of curiosity, what
would happen if the primary xformer was driven with 120VAC at a much higher 
frequency like 400Hz, I don't plan to try this, just curious.
     
I think thats all for now,
Regards, Troy Peterson [VE7SOK]
<mailto:highvoltage-at-mad.scientist-dot-com>highvoltage-at-mad.scientist-dot-com