RE: [PHISH] RE: Teletype motor (fwd)

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Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Wed, 9 May 2007 23:35:40 -0700
From: Anthony R. Mollner <penny831@xxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: RE: [PHISH] RE: Teletype motor

I have a head start on that. I have turned a piece of electrical grade
polyester to make a balanced hub with a .125 thoriated tungsten rod (I hope
not to hear about the "dangers" of thorium again from the group) as the
propeller. It's set with Allen head set screws and spins perfectly. The
enclosure is acrylic plastic with a lexan face, for safety, and the motor
will eventually be mounted to .250 electrical grade fiberglass sheet. I'm at
the point that I need to build some kind of motor mount for the thing. I've
see many designs for the mount but I'm not sure at this point what to make.
I must be able to be adjustable to set the phase and that's my newest
problem. Any advice?
Tony

-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Tuesday, May 08, 2007 2:17 PM
To: tesla@xxxxxxxxxx
Subject: [PHISH] RE: Teletype motor


Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>

I would recommend the "propeller gap" configuration over a conventional
disk.  Propeller gaps are well-suited to low powered motors and are much
easier to construct.  Mine is documented at
http://www.laushaus.com/tesla/sync_gap.htm, and Terry Blake's is at
http://tb3.com/tesla/sparkgaps/index.html

Regards, Gary Lau
MA, USA

 > Original poster: "Anthony R. Mollner" <penny831@xxxxxxxxxxxxx>
 >
 > I finally got my hands on a genuine teletype synchronous motor! Now
what do
 > I do with it, haha? It is an 1800 rpm single phase motor of the 1/40th
hp
 > type. I cleaned and oiled it and it seems to work just great. What are
the
 > groups opinion on designing the gaps, BPS, etc. and I will make it.
Thanks
 > for all your help.
 > Tony
 >