Re: Smaller machine stepper motor speeds and resolution

--- In CAD_CAM_EDM_DRO@y..., JanRwl@A... wrote:

> In a message dated 16-May-02 13:20:00 Central Daylight Time,
> tony@j... writes:
>
>
> > With 200 steps/rev, a 2.5TPI screw will give 1/2 thou per full

step (1/4

> > thou if you are half-stepping) which is your target accuracy. So

anything

> > finer than 2.5 TPI will apparently meet your spec.
> >
> >
>
> Not by MY math! 200 steps/rev. with 0.1"/turn pitch = "1/2 thou"

(5

> "tenths") per full step. Your slide-rule needs new batteries?

You're right...it was late...did a /2 instead of a *2. Thought the
pitch sounded a bit coarse at the time... :-)

Should have read 10TPI, not 2.5, as you correctly observe.

Regards,
Tony