Re: Re: Brushless Servo

At 05:29 PM 10/11/99 +0100, you wrote:

>I'm probably a bit dense but I'm still not sure what people mean by '23 and
>34 frame steppers'. I realise that it relates in some way to the physical
>size but I haven't found any reference source which will clarify it for me.

These are NEMA frame sizes, used for all standard motors of any type. It
basically qualifies ths ize mounts you need.

>tell the power of a stepper by its shaft size

To a degree. Some motors have a lot more length and power but are still
same frames. They may have the same shafts too. Shafts are usually much
bigger than the power produced needs.

>Can anyone shed any more light on this - is there any site which provides a
>clear guide to stepper motors ( perhaps even a 'selection guide' )

Look up 'stepper motor' on the web and you'll find lots of examples.

Best wishes,

Hoyt McKagen


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