Re: [CAD_CAM_EDM_DRO] positional resolution

hi
but if u have haif step it will be 1/(20*400)=0.000125


shabbbir
At 07:56 PM 10/18/01 +0000, you wrote:

>Hi
>
>A leadscrew with 20tpi and 200step/rev should have a positional
>resolution of 1/(20x200) = 0.00025 in.
>
>Have I missed something in the above calculation because I read on
>the website of a system vendor listing the positional resolution as
>0.000125 in.
>
>Further, if in the above example, one uses 10x microstepping, is it
>presumptous to claim a positional resolution of 0.000025in?
>
>Many thanks
>
>Peter
>
>
>
>
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