sci.physics.electromag

Robert Miller wrote:
> What is the inherent disadvantage if any to a stepper style motor scaled up
> to
> the 1/4 hp to 1/2 hp range. Using 16 to 24 NdFeB Disc, 1 in. x 1/4 in.
> 12,700
> Gauss or larger magnets with and 64 to 96 coils. Is the weight prohibitive?
> or
> some factor I haven't considered?

I'm not sure why you are so stuck on stepper-type motors. Generally
speaking they don't come in high power ratings and tend to have lots
of disadvantages. The main advantage (you can digitally position them
without sensors) means little in your application as far as I can
tell. Even in large robots the typical thing is to use standard high
power DC or other motor and use position sensors to give positional
feedback for positioning them.