Re: [TCML] Propeller style gap

[Joe Mastroianni <joe@xxxxxxxxxxxxxx>]

Hi Jay,
Yes 1 set of electrodes = 2 presentations per revolution = 3600 presentations per minute = 60 presentations per second.    So you'd need 4 electrodes to  get 120bps with an 1800 RPM sync motor.

I ran in this mode for quite a long and happy time with the Oriental Motor 5SK25GN-AUL.   Pics-><http://yfrog.com/3dphxj>

Cheers,
Joe

On Nov 27, 2010, at 11:22 PM, jhowson4@xxxxxxxxxxx wrote:

> Quick question about what motors a suitable for a propeller style gap. 
> 
> Am I correct in that a 1800rpm propeller gap with 1 set of stationary electrodes have a break rate of 60bps? thus meaning that a 3600rpm motor is a much better choice having a minimum of 120bps 
> I fell pretty confident in the answer of yes, but figured I would check. 
> 
> Besides the teletype motors, what other motors have you guys used for a propeller gap? 
> My current design has a bit more metal on the rotor (I am adding thermal mass, and limiting the amount of tungsten needed) , so is there a motor that has a little higher hp, but also is already synchronous or can be easily modified to be as such? 
> 
> Thanks, 
> John "Jay" Howson IV 
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