Re: size stepper motor for cnc conversion of a mini-mill

--- In CAD_CAM_EDM_DRO@y..., "urstest" <james_liang@e...> wrote:

> I am trying to convert my mini-milling machine from Grizzly(G1005)
> for cnc operation.
>
> I like to directly drive the x, y and z axis with stepper motors

(no

> gear reduction). What torque rating stepper motor do I need?
>
> The reason I didn't want to use gear reduction is the backlash
> introduced by the gear train. Is this a concern I really need to
> worry about? Also, would using belt and pulley solve the backlash
> problem?
>
> Lastly, if you have done this and have a web page describing your
> effort, I would love to read about it.
>
> -thanks
> James

Try this http://www.geocities.com/afogassa/2.html if you're using
the standar acme screws and direct drive you gonna need at least
250oz motors.
I'm working on a set of plans on how I did it.