Re: sinusoidal movement in a stepper

Interesting problem. Either type can give you just about any movement
you wish if they are properly controlled. In a stepper, you would
have to feed it positioning steps (or micro-steps) from a programmed
sequence. If I had a reason to build a special-purpose, simplified,
stand-alone, analog-only instrument, I might prefer the servos, though
I've not done my own design of one (yet). There is also a simple
algorithm which uses addition and two variables to create a
near-sinewave with about 4% distortion, as well as many flavors out on
the Internet.

Don

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "aksunavi" <aksunavi@y...>
wrote:

> Dear Sirs,
>
> Is it possible to make a sinusoidal movement in an stepper motor? I
> mean, move the motor to one side, and after to the other side,
> repeatedly. Does anybody know how to do it? Could it be made by
> servomotors?
>
> Thanks beforehand,
>
> Aksunavi