Re: [CAD_CAM_EDM_DRO] Re: Smaller machine stepper motor speeds and resolution

In a message dated 16-May-02 13:20:00 Central Daylight Time,
tony@... 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?


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