CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] How do you figure steps/inch with a servo?

Posted by Jon Elson
on 2002-02-02 21:26:21 UTC
jeffdavis516 wrote:

> Now that I have the Z axis working in my mill. I am trying to set
> the system so that if I tell the computer to move one inch, it will.
>
> I have servo's with 200 CPR encoders on them. I guess this give me
> 800 counts in quadrature (what ever that means). I have 5/8 .200
> pitch ball screws. and a 2:1 ratio pulley setup.

800 counts / rev * 5 TPI * 2 = 8000

>
> Can anyone help me figure out the number I put in CNCPro for "steps
> per inch"? I know it must be close to 10,000 because that gets me
> close.

Jon

Discussion Thread

jeffdavis516 2002-02-02 18:21:05 UTC How do you figure steps/inch with a servo? mariss92705 2002-02-02 19:06:07 UTC Re: How do you figure steps/inch with a servo? Jon Elson 2002-02-02 21:26:21 UTC Re: [CAD_CAM_EDM_DRO] How do you figure steps/inch with a servo?